New England Biolabs
To access your account, log in or register.
Products Technical Reference Customer Service My NEB Account
Contact NEB About Us Site Map Request a Catalog OEM at NEB ISO International Orders Freezer Program Quick Order
InBase, The Intein Database:
Intein Alleles - Inteins Sorted by Extein Insertion Site
InBase Reference: Perler, F. B. (2002). InBase, the Intein Database. Nucleic Acids Res. 30, 383-384.


Perler 1997 suggested that intein homologs present at the same insertion site in homologous extein genes should be considered intein alleles.

It is interesting to note that M. leprae and M. tuberculosis have inteins in pps1, recA and dnaB genes, but in each case, the insertion site is at a different location in the extein. In fact, many extein genes have unrelated inteins inserted at different positions.


Intein allele groups listed below:
  • CDC21, Cell division control protein 21 (CDC21-a insertion site) (9 inteins)
  • CDC21, Cell division control protein 21 (CDC21-b insertion site) (5 inteins)
  • CDC21, Cell division control protein 21 (CDC21-c insertion site) (5 inteins)
  • CDC21, Cell division control protein 21 (CDC21-d insertion site) (3 inteins)
  • Ceu ClpP protease (clpP-a insertion site) (2 inteins)
  • DNA polymerase A (dpol-a insertion site) (4 inteins)
  • DNA Polymerase A (dpol-b insertion site) (4 inteins)
  • DNA polymerase B (pol-d insertion site) (2 inteins)
  • DNA polymerase B Motif A (pol-a insertion site) (7 inteins)
  • DNA polymerase B Motif B (pol-b insertion site) (25 inteins)
  • DNA polymerase B Motif C (pol-c insertion site) (17 inteins)
  • DNA polymerase II, DP2 subunit (pol II-a insertion site) (11 inteins)
  • DnaB helicase (dnaB-a insertion site) (24 inteins)
  • DnaB helicase (dnaB-b insertion site) (30 inteins)
  • DnaB helicase (dnaB-c insertion site) (5 inteins)
  • DnaE (dnaE-a insertion site) (44 inteins)
  • DnaE (dnaE-b insertion site) (5 inteins)
  • DnaE (dnaE-c insertion site) (4 inteins)
  • DnaE (dnaE-d insertion site) (2 inteins)
  • Filamentous hemagglutinin (fha-a insertion site) (3 inteins)
  • Glutamate synthase (GLT1-a insertion site) (5 inteins)
  • Gyrase subunit B (gyrB-a insertion site) (6 inteins)
  • Gyrase subunit B (gyrB-b insertion site) (2 inteins)
  • Gyrase subunit A (gyrA-a insertion site) (16 inteins)
  • Helicase (helicase-a insertion site) (4 inteins)
  • Helicase (helicase-b insertion site) (5 inteins)
  • Hyp1-Csp-2 UPF0027-containing protein (Hyp1_Csp-b insertion site) (2 inteins)
  • IF2, Translation initiation factor (IF2-a insertion site) (7 inteins)
  • KlbA (klbA-a insertion site) (5 inteins)
  • Large helicase related protein (LHR-a insertion site) (5 inteins)
  • Lon, ATP-dependent protease LA (lon-a insertion site) (5 inteins)
  • Mja rPol A'' (rPol A''-a insertion site) (3 inteins)
  • MP-Be gp51 (MP-Be_gp51-a insertion site) (3 inteins)
  • MupF (mupF-a insertion site) (3 inteins)
  • Phage terminase-like protein (terA-a insertion site) (4 inteins)
  • Phosphoenolpyruvate synthase (PEPsyn-a insertion site) (3 inteins)
  • Primase - Helicase (primase-a insertion site) (4 inteins)
  • PRP8, pre-mRNA splicing factor (PRP8-a insertion site) (44 inteins)
  • r-Gyr and TopA conserved topoisomerase domain (top-a insertion site) (5 inteins)
  • RecA (recA-a insertion site) (14 inteins)
  • RecA (recA-b insertion site) (10 inteins)
  • RecA (recA-c insertion site) (3 inteins)
  • Replication factor C (RFC-a insertion site) (6 inteins)
  • Replication factor C (RFC-b insertion site) (4 inteins)
  • Replication factor C (RFC-c insertion site) (3 inteins)
  • Ribonucleoside Triphosphate Reductase (RIR1-d insertion site) (5 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-a insertion site) (4 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-b insertion site) (38 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-e insertion site) (3 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-g insertion site) (3 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-h insertion site) (2 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-i insertion site) (10 inteins)
  • Ribonucleoside-diphosphate reductase (RIR1-j insertion site) (3 inteins)
  • Ribonucleotide reductase, Anaerobic (RNR-a insertion site) (3 inteins)
  • Ribonucleotide reductase, Anaerobic (RNR-b insertion site) (2 inteins)
  • Ribonucleotide reductase, Anaerobic (RNR-c insertion site) (2 inteins)
  • RNA polymerase II, RPB2 (RPB2-b insertion site) (5 inteins)
  • RNA polymerase II, RPB2 (RPB2-c insertion site) (2 inteins)
  • RNA terminal phosphate cyclase operon orfB (rtcB-a insertion site) (7 inteins)
  • Snf2 helicase/Rad54 -related protein, (snf2-a insertion site) (5 inteins)
  • SufB FeS assembly protein, formerly Pps1 (SufB-b inseriton site) (5 inteins)
  • Threonyl-tRNA synthetase (thrRS-a insertion site) (2 inteins)
  • UDP-glucose 6-dehydrogenase (UDP_GD-a insertion site) (3 inteins)
  • Vacuolar ATPase / H+-transporting ATP synthase (VMA-a insertion site) (30 inteins)
  • Vacuolar ATPase / H+-transporting ATP synthase (VMA-b insertion site) (7 inteins)


    Inteins grouped by insertion site in the extein gene
    CDC21, Cell division control protein 21 (CDC21-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hma CDC21Theo.Cell division control protein 21Pho CDC21-1Haloarcula marismortui ATCC 43049
    Hmu-DSM12286 MCMTheo.MCM family proteinPho CDC21-1Halomicrobium mukohataei DSM 12286
    Hsa-R1 MCMTheo.DNA helicase MCMPho CDC21-1Halobacterium salinarum R-1
    Hsp-NRC1 CDC21Exp.Cell division control protein 21Pho CDC21-1Halobacterium species NRC-1
    Hut-DSM12940 MCM-1Theo.transcriptional regulator, XRE familyPho CDC21-1Halorhabdus utahensis DSM 12940
    Hwa MCM-1Theo.ATP-dependent DNA helicase, CDCPho CDC21-1Haloquadratum walsbyi DSM 16790
    Nph CDC21Theo.Cell division control protein 21, ATP-dependent DNA helicasePho CDC21-1Natronomonas pharaonis DSM 2160
    Pab CDC21-1Theo.Cell division control protein 21Pho CDC21-1Pyrococcus abyssi
    Pho CDC21-1Theo.Cell division control protein 21Pho CDC21-1Pyrococcus horikoshii OT3
    CDC21, Cell division control protein 21 (CDC21-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa MCM-2Theo.ATP-dependent DNA helicase, CDCPho CDC21-2Haloquadratum walsbyi DSM 16790
    Pab CDC21-2Theo.Cell division control protein 21Pho CDC21-2Pyrococcus abyssi
    Pfu CDC21Theo.Cell division control protein 21Pho CDC21-2Pyrococcus furiosus
    Pho CDC21-2Theo.Cell division control protein 21Pho CDC21-2Pyrococcus horikoshii OT3
    Tko CDC21-1Theo.Cell division control protein 21Pho CDC21-2Thermococcus kodakaraensis KOD1
    CDC21, Cell division control protein 21 (CDC21-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa MCM-4Theo.ATP-dependent DNA helicase, CDCTko CDC21-2Haloquadratum walsbyi DSM 16790
    Memar MCM2Theo.MCM2, ATPase involved in replication control, Cdc46/Mcm familyTko CDC21-2Methanoculleus marisnigri JR1
    Smar MCM2Theo.MCM2, ATPase involved in replication control, Cdc46/Mcm familyTko CDC21-2Staphylothermus marinus F1
    Tko CDC21-2Theo.Cell division control protein 21Tko CDC21-2Thermococcus kodakaraensis KOD1
    Unc-MetRFS MCM2Theo.MCM2, ATPase involved in replication control, Cdc46/Mcm familyTko CDC21-2uncultured archaeon (Rice Cluster I)
    CDC21, Cell division control protein 21 (CDC21-d insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hut MCM-2Theo.transcriptional regulator, XRE familyHwa MCM-3Halorhabdus utahensis DSM 12940
    Hwa MCM-3Theo.ATP-dependent DNA helicase, CDCHwa MCM-3Haloquadratum walsbyi DSM 16790
    Nma-ATCC43099 MCMTheo.transcriptional regulator, XRE familyHwa MCM-3Natrialba magadii ATCC 43099
    Ceu ClpP protease (clpP-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Ceu ClpPExp.ClpP proteaseCeu ClpPChlamydomonas eugametos (chloroplast)
    Cmo ClpPTheo.ClpP protease, proteolytic subunit 2 of clp proteaseCeu ClpPChlamydomonas moewusii, strain UTEX 97
    DNA polymerase A (dpol-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    AP-APSE1 dpolTheo.DNA polymerase A (Pol I or family A)AP-APSE1 dpolAcyrthosiphon pisum secondary endosymbiot phage 1
    AP-APSE2 dpolTheo.DNA polymerase A (Pol I or family A)AP-APSE1 dpolBacteriophage APSE-2, isolate=T5A
    AP-APSE4 dpolTheo.DNA polymerase A (Pol I or family A)AP-APSE1 dpolBacteriophage of Candidatus Hamiltonella defensa strain 5ATac, endosymbiot of Acyrthosiphon pisum
    AP-APSE5 dpolTheo.DNA polymerase A (Pol I or family A)AP-APSE1 dpolBacteriophage APSE-5
    DNA Polymerase A (dpol-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    SaP-SETP12 dpolTheo.DNA polymerase A (Pol I or family A)SaP-SETP3 dpolSalmonella phage SETP12
    SaP-SETP3 dpolTheo.DNA polymerase A (Pol I or family A)SaP-SETP3 dpolSalmonella phage SETP3
    SaP-SETP5 dpolTheo.DNA polymerase A (Pol I or family A)SaP-SETP3 dpolSalmonella phage SETP5
    SoP-SO1 dpolTheo.DNA polymerase A (Pol I or family A)SaP-SETP3 dpolSodalis phage SO-1
    DNA polymerase B (pol-d insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa PolB-1Theo.DNA polymerase B (alpha or type-B family)Hwa PolB-1Haloquadratum walsbyi DSM 16790
    Nma-ATCC43099 PolB-1Theo.DNA polymerase B regionHwa PolB-1Natrialba magadii ATCC 43099
    DNA polymerase B Motif A (pol-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mesp-FS406 PolB-1Theo.DNA polymerase Pol2,DNA polymerase family BPko Pol-1Methanocaldococcus sp. FS406-22
    Mja Pol-1Theo.DNA-directed DNA polymerase (alpha or family B)Pko Pol-1Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mvu-M7 Pol-1Theo.DNA-directed DNA polymerasePI-PkoIMethanocaldococcus vulcanius M7
    Nph PolB-1Theo.DNA-directed DNA polymerase (alpha or family B)Pko Pol-1Natronomonas pharaonis DSM 2160
    Tag Pol-1 (Tsp-TY Pol-1)Exp.DNA polymerase (alpha or family B)Pko Pol-1Thermococcus aggregans
    Tfu Pol-1Exp.DNA polymerase (alpha or family B)Pko Pol-1Thermococcus fumicolans
    Tko Pol-1 (Pko Pol-1)Exp.DNA polymerase (alpha or family B)Pko Pol-1Pyrococcus/ Thermococcus kodakaraensis KOD1
    DNA polymerase B Motif B (pol-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hma PolBTheo.DNA polymerase B elongation subunitTli Pol-1Haloarcula marismortui ATCC 43049
    Hmu-DSM12286 PolBTheo.DNA polymerase BTli Pol-1Halomicrobium mukohataei DSM 12286
    Hwa PolB-2Theo.DNA polymerase (alpha or family B)Tli Pol-1Haloquadratum walsbyi DSM 16790
    Mesp-FS406 PolB-2Theo.DNA polymerase Pol2,DNA polymerase family BTli Pol-1Methanocaldococcus sp. FS406-22
    Mesp-FS406 PolB-3Theo.DNA polymerase Pol2,DNA polymerase family BTli Pol-1Methanocaldococcus sp. FS406-22
    Mfe-AG86 Pol-1Theo.DNA-directed DNA polymeraseTli Pol-1Methanocaldococcus fervens AG86
    Mja Pol-2Theo.DNA polymerase (alpha or family B)Tli Pol-1Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mvu-M7 Pol-2Theo.DNA-directed DNA polymeraseTli Pol-1Methanocaldococcus vulcanius M7
    Nma-ATCC43099 PolB-2Theo.DNA polymerase B regionTli Pol-1Natrialba magadii ATCC 43099
    Nph PolB-2Theo.DNA-directed DNA polymerase (alpha or family B)Tli Pol-1Natronomonas pharaonis DSM 2160
    Pho Pol ITheo.DNA polymerase ((alpha or family B)Tli Pol-1Pyrococcus horikoshii OT3
    Psp-GBD PolExp.DNA polymerase (alpha or family B)Tli Pol-1Pyrococcus species GB-D
    Sru PolBcTheo.DNA polymerase (alpha or family B)Tli Pol-1Salinibacter ruber DSM 13855
    Tag Pol-2 (Tsp-TY Pol-2)Exp.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus aggregans
    Thy Pol-1Exp.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus hydrothermalis
    Tko Pol-2 (Pko Pol-2)Exp.DNA polymerase (alpha or family B)Tli Pol-1Pyrococcus/Thermococcus kodakaraensis KOD1
    Tli Pol-1Exp.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus litoralis
    Tma PolExp.DNA polymerase B (alpha or type-B family)Tli Pol-1Thermococcus marinus
    Ton-NA1 PolTheo.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus onnurineus NA1
    Tsi-MM739 Pol-1Theo.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus sibiricus MM 739
    Tsp-GE8 Pol-1Exp.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus species GE8
    Tsp-GT Pol-1Theo.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus species GT
    Tsp-OGL-20P PolTheo.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus sp. OGL-20P
    Tthi PolExp.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus thioreducens
    Tzi PolTheo.DNA polymerase (alpha or family B)Tli Pol-1Thermococcus zilligii
    DNA polymerase B Motif C (pol-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    APMV PolTheo.DNA polymerase B (alpha or family B)Tli Pol-2Acanthomoeba polyphaga Mimivirus
    CroV PolTheo.DNA polymerase (alpha or family B)Tli Pol-2Cafeteria roenbergensis virus BV-PW1
    HaV01 PolTheo.DNA polymerase B (alpha or family B)Tli Pol-2Heterosigma akashiwo virus 01
    Hvo PolBTheo.DNA polymerase B (alpha or family B)Tli Pol-2Haloferax volcanii DS70
    Hwa PolB-3Theo.DNA polymerase B (alpha or family B)Tli Pol-2Haloquadratum walsbyi DSM 16790
    Mfe-AG86 Pol-2Theo.DNA-directed DNA polymeraseTli Pol-2Methanocaldococcus fervens AG86
    Mvu-M7 Pol-3Theo.DNA-directed DNA polymeraseTli Pol-2Methanocaldococcus vulcanius M7
    Neq Pol-cExp.DNA polymerase (alpha or family B)Tli Pol-2Nanoarchaeum equitans Kin4-M
    Neq Pol-nExp.DNA polymerase (alpha or family B)Tli Pol-2Nanoarchaeum equitans Kin4-M
    Tag Pol-3 (Tsp-TY Pol-3)Exp.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus aggregans
    Tfu Pol-2Exp.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus fumicolans
    Thy Pol-2Exp.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus hydrothermalis
    Tli Pol-2Exp.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus litoralis
    Tpe PolTheo.DNA polymerase B (alpha or family B)Tli Pol-2Thermococcus peptonophilus strain SM2
    Tsi-MM739 Pol-2Theo.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus sibiricus MM 739
    Tsp-GE8 Pol-2Exp.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus species GE8
    Tsp-GT Pol-2Theo.DNA polymerase (alpha or family B)Tli Pol-2Thermococcus species GT
    DNA polymerase II, DP2 subunit (pol II-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cme-boo Pol-IITheo.DNA polymerase II, DP2 subunit, PolC_DP2Pho Pol-IICandidatus Methanoregula boonei 6A8
    Hma Pol-IITheo.DNA polymerase II, DP2 subunitPho Pol-IIHaloarcula marismortui ATCC 43049
    Hsp-NRC1 Pol-IITheo.DNA polymerase II, DP2 subunitPho Pol-IIHalobacterium salinarum NRC-1
    Hwa Pol-II-1Theo.DNA polymerase II, DP2 subunitPho Pol-IIHaloquadratum walsbyi DSM 16790
    Maeo Pol-IITheo.DNA polymerase II, DP2 subunit, PolC_DP2Pho Pol-IIMethanococcus aeolicus Nankai-3
    Memar Pol-IITheo.DNA polymerase II, DP2 subunit, PolC_DP2Pho Pol-IIMethanoculleus marisnigri JR1
    Mhu Pol-IITheo.DNA polymerase II, DP2 subunitPho Pol-IIMethanospirillum hungateii JF-1
    Pab Pol-IIExp.DNA polymerase II, DP2 subunitPho Pol-IIPyrococcus abyssi
    Pho Pol-IITheo.DNA polymerase II, DP2 subunitPho Pol-IIPyrococcus horikoshii OT3
    Tba Pol-IITheo.DNA polymerase II, DP2 subunit, PolC_DP2Pho Pol-IIThermococcus barophilus MP
    Tko Pol-IITheo.DNA polymerase II, DP2 subunitPho Pol-IIThermococcus kodakaraensis KOD1
    DnaB helicase (dnaB-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Csp-PCC7425 DnaBTheo.DnaB helicaseSsp DnaBCyanothece sp. PCC 7425
    Gth DnaBTheo.DnaB helicaseSsp DnaBGuillardia theta (plastid)
    Kra DnaBTheo.DnaB helicaseSsp DnaBKineococcus radiotolerans SRS30216
    Maer-NIES843 DnaBTheo.DnaB helicaseSsp DnaBMicrocystis aeruginosa NIES-843
    Mbo-1173P DnaBTheo.DnaB helicaseSsp DnaBMycobacterium bovis BCG Pasteur 1173P
    Mbo-AF2122 DnaBTheo.DnaB helicaseSsp DnaBMycobacterium bovis subsp. bovis AF2122/97
    Msm DnaB-2Theo.DnaB helicaseSsp DnaBMycobacterium smegmatis MC2 155
    Mtu-CDC1551 DnaBExp.DnaB helicaseSsp DnaBMycobacterium tuberculosis, CDC1551
    Mtu-F11 DnaBTheo.DnaB helicaseSsp DnaBMycobacterium tuberculosis, strain F11
    Mtu-H37Ra DnaBTheo.DnaB helicaseSsp DnaBMycobacterium tuberculosis H37Ra
    Mtu-H37Rv DnaBExp.DnaB helicaseSsp DnaBMycobacterium tuberculosis H37Rv
    Mtu-Haarlem DnaBTheo.DnaB helicaseSsp DnaBMycobacterium tuberculosis str. Haarlem
    Nfa DnaBTheo.DnaB helicaseSsp DnaBNocardia farcinica IFM 10152
    Npu DnaBTheo.DnaB helicaseSsp DnaBNostoc punctiforme
    Nsp-PCC7120 DnaBTheo.DnaB helicaseSsp DnaBNostoc species PCC7120, (Anabaena sp. PCC7120)
    Ppu DnaBTheo.DnaB helicaseSsp DnaBPorphyra purpurea (chloroplast)
    Pye DnaBTheo.DnaB helicaseSsp DnaBPorphyra yezoensis chloroplast, cultivar U-51
    Rma DnaBExp.DnaB helicaseSsp DnaBRhodothermus marinus
    Rma-DSM4252 DnaBTheo.DnaB helicaseSsp DnaBRhodothermus marinus DSM 4252
    Sare DnaBTheo.DnaB helicaseSsp DnaBSalinispora arenicola CNS-205
    Ssp DnaBExp.DnaB helicaseSsp DnaBSynechocystis species, strain PCC6803
    Ssp-JA2 DnaBTheo.DnaB helicaseSsp DnaBSynechococcus species JA-2-3B'a(2-13)
    Ssp-JA3 DnaBTheo.DnaB helicaseSsp DnaBSynechococcus species JA-3-3Ab
    Ter DnaB-2Theo.DnaB helicaseSsp DnaBTrichodesmium erythraeum IMS101
    DnaB helicase (dnaB-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Aeh DnaB-1Theo.DnaB HelicaseMle-TN DnaBAlkalilimnicola ehrlichei MLHE-1
    Bce-MCO3 DnaBTheo.DnaB helicaseMle-TN DnaBBurkholderia cenocepacia MC0-3
    Bce-PC184 DnaBTheo.DnaB helicaseMle-TN DnaBBurkholderia cenocepacia PC184
    Cfl-DSM20109 DnaBTheo.DnaB helicase,Mle-TN DnaBCellulomonas flavigena DSM 20109
    Cwa DnaBTheo.DnaB helicaseMle-TN DnaBCrocosphaera watsonii WH 8501 (Synechocystis sp. WH 8501)
    Dge DnaBTheo.DnaB helicaseMle-TN DnaBDeinococcus geothermalis DSM11300
    Fal DnaBTheo.DnaB helicaseMle-TN DnaBFrankia alni ACN14a
    Gvi DnaBTheo.DnaB helicaseMle-TN DnaBGloeobacter violaceus, PCC 7421
    Hhal DnaBTheo.DnaB helicaseMle-TN DnaBHalorhodospira halophila SL1
    Kfl-DSM17836 DnaBTheo.DnaB helicaseMle-TN DnaBKribbella flavida DSM 17836
    Mav-104 DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium avium 104
    Mav-ATCC25291 DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium avium subsp. avium ATCC 25291
    Mav-ATCC35712 DnaBExp.DnaB helicaseMle-TN DnaBMycobacterium avium
    Mav-PT DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium avium subsp. paratuberculosis str. k10
    Mfl-PYR-GCK DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium flavescens PYR-GCK
    Mgi-PYR-GCK DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium gilvum PYR-GCK
    Min-1442 DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium intracellulare
    Mle-TN DnaBExp.DnaB helicaseMle-TN DnaBMycobacterium leprae, strain TN
    Msm DnaB-1Theo.DnaB helicaseMle-TN DnaBMycobacterium smegmatis MC2 155
    Msp-KMS DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium species KMS
    Msp-MCS DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium species MCS
    Mvan DnaBTheo.DnaB helicaseMle-TN DnaBMycobacterium vanbaalenii PYR-1
    Nsp-JS614 DnaBTheo.DnaB helicaseMle-TN DnaBNocardioides species JS614
    PP-PhiEL HelicaseTheo.Helicase, PhiEL_ORF166Mle-TN DnaBPseudomonas aeruginosa phage phiEL
    Pnuc DnaBTheo.DnaB helicaseMle-TN DnaBPolynucleobacter sp. QLW-P1DMWA-1
    Posp-JS666 DnaBTheo.DnaB helicaseMle-TN DnaBPolaromonas species JS666
    Rer-SK121 DnaBTheo.DnaB helicaseMle-TN DnaBRhodococcus erythropolis SK121
    Sru DnaBTheo.DnaB helicaseMle-TN DnaBSalinibacter ruber DSM 13855
    Susp-NBC371 DnaB inteinTheo.DnaB helicaseMle-TN DnaBSulfurovum sp. NBC37-1
    Ter DnaB-1Exp.DnaB helicaseMle-TN DnaBTrichodesmium erythraeum IMS101
    DnaB helicase (dnaB-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Aeh DnaB-2Theo.DnaB helicaseCbu DnaBAlkalilimnicola ehrlichei MLHE-1
    Cbu-Dugway DnaBTheo.DnaB helicaseCbu-RSA493 DnaBCoxiella burnetii Dugway 5J108-111
    Cbu-Goat DnaBTheo.DnaB helicaseCbu-RSA493 DnaBCoxiella burnetii 'MSU Goat Q177'
    Cbu-RSA334 DnaBTheo.DnaB helicaseCbu-RSA493 DnaBCoxiella burnetii RSA 334
    Cbu-RSA493 DnaBTheo.DnaB helicaseCbu-RSA493 DnaBCoxiella burnetii RSA 493
    DnaE (dnaE-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Aha DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cAphanothece halophytica
    Aha DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nAphanothece halophytica
    Aov DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cAphanizomenon ovalisporum
    Aov DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nAphanizomenon ovalisporum
    Asp DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cAnabaena species PCC7120, (Nostoc sp. PCC7120)
    Asp DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nAnabaena species PCC7120, (Nostoc sp. PCC7120)
    Ava DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cAnabaena variabilis ATCC29413
    Ava DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nAnabaena variabilis ATCC29413
    Cra-CS505 DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cCylindrospermopsis raciborskii CS-505
    Cra-CS505 DnaE-nTheo.DNA polymerase III, alpha subunitSsp DnaE-nCylindrospermopsis raciborskii CS-505
    Csp-CCY0110 DnaE-cTheo.DNA polymerase III, alpha subunitSsp DnaE-cCyanothece sp. CCY0110
    Csp-CCY0110 DnaE-nTheo.DNA polymerase III, alpha subunitSsp DnaE-nCyanothece sp. CCY0110
    Csp-PCC7424 DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cCyanothece sp. PCC 7424
    Csp-PCC7424 DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nCyanothece sp. PCC7424
    Csp-PCC7822 DnaE-nTheo.DNA polymerase III, alpha subunitSsp DnaE-nCyanothece sp. PCC 7822
    Csp-PCC8801 DnaE-cTheo.DNA polymerase III, alpha subunitSsp DnaE-cCyanothece sp. PCC 8801
    Csp-PCC8801 DnaE-nTheo.DNA polymerase III, alpha subunitSsp DnaE-nCyanothece sp. PCC 8801
    Cwa DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cCrocosphaera watsonii WH 8501 (Synechocystis sp. WH 8501)
    Cwa DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nCrocosphaera watsonii WH 8501 (Synechocystis sp. WH 8501)
    Maer-NIES843 DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cMicrocystis aeruginosa NIES-843
    Maer-NIES843 DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nMicrocystis aeruginosa NIES-843
    Mcht-PCC7420 DnaE-2cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cMicrocoleus chthonoplastes PCC7420
    Mcht-PCC7420 DnaE-2nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nMicrocoleus chthonoplastes PCC7420
    Nosp-CCY9414 DnaE-nTheo.DNA polymerase III subunit alphaSsp DnaE-nNodularia spumigena CCY9414
    Npu-PCC73102 DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cNostoc punctiforme PCC73102
    Npu-PCC73102 DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nNostoc punctiforme PCC73102
    Nsp-PCC7120 DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cNostoc species PCC7120, (Anabaena sp. PCC7120)
    Nsp-PCC7120 DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nNostoc species PCC7120, (Anabaena sp. PCC7120)
    Oli DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cOscillatoria limnetica str. 'Solar Lake'
    Oli DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nOscillatoria limnetica str. 'Solar Lake'
    Sel-PC7942 DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cSynechococcus elongatus PC7942
    Sel-PC7942 DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nSynechococcus elongatus PC7942
    Sel-PCC6301 DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cSynechococcus elongatus PCC 6301 and PCC7942
    Sel-PCC6301 DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nSynechococcus elongatus PCC 6301
    Ssp DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cSynechocystis species, strain PCC6803
    Ssp DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nSynechocystis species, strain PCC6803
    Ssp-PCC7002 DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cSynechocystis species, strain PCC 7002
    Ssp-PCC7002 DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nSynechocystis species, strain PCC 7002
    Tel DnaE-cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cThermosynechococcus elongatus BP-1
    Tel DnaE-nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nThermosynechococcus elongatus BP-1
    Ter DnaE-3cTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cTrichodesmium erythraeum IMS101
    Ter DnaE-3nTheo.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nTrichodesmium erythraeum IMS101
    Tvu DnaE-cExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-cThermosynechococcus vulcanus
    Tvu DnaE-nExp.DnaE pol subunit, DNA polymerase III alpha subunitSsp DnaE-nThermosynechococcus vulcanus
    DnaE (dnaE-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mcht-PCC7420 DnaE-1Theo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-2Microcoleus chthonoplastes PCC7420
    Rma-DSM4252 DnaETheo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-2Rhodothermus marinus DSM 4252
    Ter DnaE-2Theo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-2Trichodesmium erythraeum IMS101
    Tth-HB27 DnaE-1Theo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-2Thermus thermophilus HB27
    Tth-HB8 DnaE-1Theo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-2Thermus thermophilus HB8
    DnaE (dnaE-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Gob DnaETheo.DnaE pol subunit, DNA polymerase III alpha subunitTth-HB8-2 DnaEGemmata obscuriglobus UQM2246
    Taq-Y51MC23 DnaETheo.DNA polymerase III, alpha subunitTth-HB8-2 DnaEThermus aquaticus Y51MC23
    Tth-HB27 DnaE-2Theo.DnaE pol subunit, DNA polymerase III alpha subunitTth-HB8 DnaE-2Thermus thermophilus HB27
    Tth-HB8 DnaE-2Theo.DnaE pol subunit, DNA polymerase III alpha subunitTth-HB8 DnaE-2Thermus thermophilus HB8
    DnaE (dnaE-d insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pma-ExH1 DnaETheo.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-1Persephonella marina EX-H1
    Ter DnaE-1Exp.DnaE pol subunit, DNA polymerase III alpha subunitTer DnaE-1Trichodesmium erythraeum IMS101
    Filamentous hemagglutinin (fha-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pfl Fha BILTheo.Filamentous hemagglutininPsy FhaPseudomonas fluorescens Pf-5
    Pssp-A1-1 FhaTheo.Filamentous hemagglutininPsy FhaPseudomonas species A1-1
    Psy FhaTheo.Filamentous hemagglutininPsy FhaPseudomonas syringae pv. tomato str. DC3000
    Glutamate synthase (GLT1-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Dhan GLT1Theo.Glutamate synthaseDhan GLT1Debaryomyces hansenii CBS767
    Pan GLT1Theo.Glutamate synthase (NADPH-GOGAT)Dhan GLT1Podospora anserina
    Pgu GLT1Theo.Glutamate synthase (NADPH-GOGAT)Dhan GLT1Pichia (Candida) guilliermondii
    Pgu-alt GLT1Theo.Glutamate synthase, alt. code 12Dhan GLT1Pichia (Candida) guilliermondii
    Pno GLT1Theo.Glutamate synthaseDhan GLT1Phaeosphaeria nodorum SN15
    Gyrase subunit B (gyrB-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cra-CS505 GyrBTheo.DNA gyrase, B subunitSsp GyrBCylindrospermopsis raciborskii CS-505
    Hwa GyrBTheo.DNA gyrase subunit BSsp GyrHaloquadratum walsbyi DSM 16790
    Mcht-PCC7420 GyrBTheo.DNA gyrase, B subunitSsp GyrBMicrocoleus chthonoplastes PCC 7420
    Rbr-D9 GyrBTheo.DNA gyrase, B subunitSsp GyrBRaphidiopsis brookii D9
    Ssp GyrBExp.DNA gyrase subunit BSsp GyrBSynechocystis species, strain PCC6803
    Ter GyrBTheo.DNA gyrase subunit BSsp GyrBTrichodesmium erythraeum IMS101
    Gyrase subunit B (gyrB-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Lsp-PCC8106 GyrBTheo.DNA gyrase subunit B, Hyp-L8106_15929Npu GyrBLyngbya sp. PCC 8106
    Npu GyrBTheo.DNA gyrase subunit BNpu GyrBNostoc punctiforme
    Gyrase subunit A (gyrA-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mau-ATCC27029 GyrATheo.DNA gyrase subunit AMle-TN GyrAMicromonospora aurantiaca ATCC 27029
    Mfl GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium flavescens Fla0
    Mga GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium gastri
    Mgi-PYR-GCK GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium gilvum PYR-GCK
    Mgo GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium gordonae
    Min-ATCC13950 GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium intracellulare ATCC 13950
    Mkas GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium kansasii
    Mkas-ATCC12478 GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium kansasii ATCC 12478
    Mle-Br4923 GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium leprae Br4923
    Mle-TN GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium leprae TN
    Mma GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium malmoense
    Msp-KMS GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium species KMS
    Msp-MCS GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium species MCS
    Mvan GyrATheo.DNA gyrase subunit AMle-TN GyrAMycobacterium vanbaalenii PYR-1
    Mxe GyrAExp.DNA gyrase subunit AMle-TN GyrAMycobacterium xenopi strain IMM5024
    Pma-EXH1 GyrATheo.DNA gyrase subunit AMle-TN GyrAPersephonella marina EX-H1
    Helicase (helicase-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Maeo-N3 HelicaseTheo.DEAD/DEAH box helicase domain proteinMja HelicaseMethanococcus aeolicus Nankai-3
    Mja HelicaseTheo.Putative SKI2-family helicase.Mja HelicaseMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mvu-M7 HelicaseTheo.DEAD/DEAH box helicase domain proteinMja HelicaseMethanocaldococcus vulcanius M7
    Tko HelicaseTheo.RNA helicase Ski2 homologMja HelicaseThermococcus kodakaraensis KOD1
    Helicase (helicase-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Amax-CS328 DnaXTheo.DNA polymerase III, subunits gamma and tauSsp DnaXArthrospira maxima CS-328
    Apl-C1 DnaXTheo.DNA polymerase III, subunits gamma and tauSsp DnaXArthrospira platensis
    Mex HelicaseTheo.DEAD/DEAH box HelicaseSsp DnaXMethylobacterium extorquens AM1
    Spl DnaXTheo.DNA polymerase III gamma and tau subunitsSsp DnaXSpirulina platensis, strain C1
    Ssp DnaXExp.DNA pol III Tau-subunitSsp DnaXSynechocystis species, strain PCC6803
    Hyp1-Csp-2 UPF0027-containing protein (Hyp1_Csp-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cce Hyp1-Csp-2Theo.Hypothetical, UPF0027-containing proteinCcy Hyp1-Csp-2Cyanothece sp. ATCC 51142
    Ccy Hyp1-Csp-2Theo.Hypothetical, UPF0027-containing proteinCcy Hyp1-Csp-2Cyanothece sp. CCY0110
    IF2, Translation initiation factor (IF2-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Bde-JEL423 eIF-5BTheo.Eukaryotic translation initiation factor 5BMja IF2Batrachochytrium dendrobatidis JEL423
    Mja IF2Theo.Translation initiation factorMja IF2Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mka EF2Theo.Translation elongation/release factor (GTPase)Mja IF2Methanopyrus kandleri AV19
    Pab IF2Theo.Translation initiation factorMja IF2Pyrococcus abyssi
    Pfu IF2Theo.Translation initiation factorMja IF2Pyrococcus furiosus
    Pho IF2Theo.Translation initiation factorMja IF2Pyrococcus horikoshii OT3
    Tko IF2Theo.Translation initiation factorMja IF2Thermococcus kodakaraensis KOD1
    KlbA (klbA-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mja KlbAExp.KlbA, kilB operon ORF AMja KlbAMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Pab KlbATheo.KlbA, kilB operon ORF AMja KlbAPyrococcus abyssi
    Pfu KlbATheo.KlbA, kilB operon ORF AMja KlbAPyrococcus furiosus
    Pho KlbATheo.KlbA, kilB operon ORF AMja KlbAPyrococcus horikoshii OT3
    Tko KlbATheo.KlbA,type II/IV secretion system ATPaseMja KlbAThermococcus kodakaraensis KOD1
    Large helicase related protein (LHR-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mesp-FS406-22 LHRTheo.Large helicase related proteinPho LHRMethanocaldococcus sp. FS406-22
    Pho LHRTheo.Large helicase related proteinPho LHRPyrococcus horikoshii OT3
    Tko LHRTheo.Large helicase related proteinPho LHRThermococcus kodakaraensis KOD1
    Ton-NA1 LHRTheo.large helicase-related proteinPho LHRThermococcus onnurineus NA1
    Tsp-AM4 LHRTheo.large helicase-related proteinPho LHRThermococcus sp. AM4
    Lon, ATP-dependent protease LA (lon-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pab LonExp.ATP-dependent protease LAPho LonPyrococcus abyssi
    Pfu LonTheo.ATP-dependent protease LAPho LonPyrococcus furiosus
    Pho LonTheo.ATP-dependent protease LAPho LonPyrococcus horikoshii OT3
    Tsi-MM739 LonTheo.ATP-dependent proteasePho LonThermococcus sibiricus MM 739
    Tsp-AM4 LonTheo.ATP-dependent protease, putativePho LonThermococcus sp. AM4
    Mja rPol A'' (rPol A''-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa rPol A''Theo.DNA-directed RNA polymerase subunit A''Mja rPol A''Haloquadratum walsbyi DSM 16790
    Mja rPol A''Theo.DNA-directed RNA polymerase subunit A''Mja rPol A''Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Nph rPol A''Theo.DNA-directed RNA polymerase subunit A''Mja rPol A''Natronomonas pharaonis DSM 2160
    MP-Be gp51 (MP-Be_gp51-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    MP-Be gp51Theo.gp51MP-Be gp51Mycobacteriophage Bethlehem
    MP-KBG gp53Theo.gp53MP-Be gp51Mycobacterium phage KBG
    MP-U2 gp50Theo.gp50MP-Be gp51Mycobacteriophage U2
    MupF (mupF-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    AP-Aaphi23 MupFTheo.Putative minor head protein,P32,traN-related proteinMca MupFBacteriophage Aaphi23, Haemophilus phage Aaphi23
    AgP-S1249 MupFTheo.Putative minor head proteinMca MupFAggregatibacter phage S1249
    Mca MupFTheo.Prophage MuMc02, F proteinMca MupFMethylococcus capsulatus Bath, prophage MuMc02
    Phage terminase-like protein (terA-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Ama MADE823Theo.Hypothetical, Phage-related terminaseCth-ATCC27405 TerAphage uncharacterized protein [Alteromonas macleodii 'Deep ecotype']
    Bse-MLS10 TerATheo.Phage terminase-like protein, large subunit-like proteinCth-ATCC27405 TerABacillus selenitireducens MLS10
    Cth-ATCC27405 TerAExp.Phage terminase-like protein, large subunitCth-ATCC27405 TerAClostridium thermocellum ATCC27405
    Cth-DSM2360 TerATheo.TerminaseCth-ATCC27405 TerAClostridium thermocellum DSM 2360
    Phosphoenolpyruvate synthase (PEPsyn-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cwa PEPTheo.Phosphoenolpyruvate synthaseMja PEPCrocosphaera watsonii WH 8501 (Synechocystis sp. WH 8501)
    Mein-ME PEPTheo.Phosphoenolpyruvate synthaseMje PEPMethanocaldococcus infernus ME
    Mja PEPExp.Phosphoenolpyruvate synthaseMja PEPMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Primase - Helicase (primase-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    EP-Min27 PrimaseTheo.DNA primase, HelicaseShP-Sfv-5 PrimaseEnterobacteria phage Min27
    ShP-Sfv-2a-2457T-n PrimaseTheo.DNA primase, HelicaseShP-Sfv-5 PrimaseShigella flexneri 2a str. 2457T
    ShP-Sfv-2a-301-n PrimaseTheo.DNA primase, HelicaseShP-Sfv-5 PrimaseShigella flexneri 2a str. 301
    ShP-Sfv-5 PrimaseTheo.DNA primase, HelicaseShP-Sfv-5 PrimaseShigella flexneri 5 str. 8401
    PRP8, pre-mRNA splicing factor (PRP8-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Abr PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus brevipes FRR2439
    Aca-G186AR PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces capsulatus G186AR
    Aca-H143 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces capsulatus H143
    Aca-JER2004 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces capsulatus (anamorph: Histoplasma capsulatum)
    Aca-NAm1 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces capsulatus NAm1
    Ade-ER3 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces dermatitidis ER-3
    Ade-SLH14081 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Ajellomyces dermatitidis SLH14081,
    Afu-Af293 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus fumigatus var. ellipticus, strain Af293
    Afu-FRR0163 PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus fumigatus strain FRR0163
    Afu-NRRL5109 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus fumigatus var. ellipticus, strain NRRL 5109
    Agi-NRRL6136 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus giganteus Strain NRRL 6136
    Ani-FGSCA4 PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus nidulans FGSC A
    Avi PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Aspergillus viridinutans strain FRR0577
    Bci PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Botrytis cinerea (teleomorph of Botryotinia fuckeliana B05.10)
    Bde-JEL423 PRP8-2Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Batrachochytrium dendrobatidis JEL423
    Bfu-B05 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Botryotinia fuckeliana B05.10
    Cba-WM02.98 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus bacillisporus strain WM02.98 (aka Cryptococcus neoformans gattii)
    Cba-WM728 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus bacillisporus strain WM728
    Cga PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus gattii (aka Cryptococcus bacillisporus)
    Cla PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus laurentii strain CBS139
    Cne-A PRP8 (Fne-A PRP8)Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Filobasidiella neoformans (Cryptococcus neoformans) Serotype A, PHLS_8104
    Cne-AD PRP8 (Fne-AD PRP8)Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus neoformans (Filobasidiella neoformans), Serotype AD, CBS132).
    Cne-JEC21 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Cryptococcus neoformans var. neoformans JEC21
    Eni PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Emericella nidulans R20 (anamorph: Aspergillus nidulans)
    Eni-FGSCA4 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Emericella nidulans (anamorph: Aspergillus nidulans) FGSC A4
    Hca PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Histoplasma capsulatum (anamorph: Ajellomyces capsulatus)
    Mca-CBS113480 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Microsporum canis CBS 113480
    Nau PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya aurata NRRL 4378
    Nfe-NRRL5534 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya fennelliae NRRL 5534
    Nfi PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya fischeri
    Ngl-FR2163 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya glabra FRR2163
    Ngl-FRR1833 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya glabra FRR1833
    Nqu PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya quadricincta, strain NRRL 4175
    Nspi PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Neosartorya spinosa FRR4595
    Pabr-Pb01 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Paracoccidioides brasiliensis Pb01
    Pabr-Pb03 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Paracoccidioides brasiliensis Pb03
    Pbl PRP8-aTheo.PRP8, pre-mRNA splicing factorCne-AD PRP8Phycomyces blakesleeanus
    Pbl PRP8-bTheo.PRP8, pre-mRNA splicing factorCne-AD PRP8Phycomyces blakesleeanus
    Pbr-Pb18 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Paracoccidioides brasiliensis Pb18
    Pch PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Penicillium chrysogenum
    Pex PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Penicillium expansum
    Ptr PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Pyrenophora tritici-repentis Pt-1C-BF
    Pvu PRP8Exp.PRP8, pre-mRNA splicing factorCne-AD PRP8Penicillium vulpinum (formerly P. claviforme)
    Ure-1704 PRP8Theo.PRP8, pre-mRNA splicing factorCne-AD PRP8Uncinocarpus reesii
    r-Gyr and TopA conserved topoisomerase domain (top-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mja r-GyrTheo.Reverse gyraseMja r-GyrMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Pfu TopATheo.DNA topoisomerase IMja r-GyrPyrococcus furiosus
    Pho r-GyrTheo.Reverse gyraseMja r-GyrPyrococcus horikoshii OT3
    Tko TopATheo.DNA topoisomerase IMja r-GyrThermococcus kodakaraensis KOD1
    Tko r-GyrTheo.Reverse gyraseMja r-GyrThermococcus kodakaraensis KOD1
    RecA (recA-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mbo RecATheo.RecAMtu-H37Rv RecAMycobacterium bovis subsp. bovis AF2122/97
    Mtu-C RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis C
    Mtu-CPHL RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis CPHL_A
    Mtu-Canetti RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis /strain="Canetti"
    Mtu-EAS054 RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis EAS054
    Mtu-H37Rv RecAExp.RecAMtu-H37Rv RecAMycobacterium tuberculosis H37Rv,Also CDC1551
    Mtu-K85 RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis K85
    Mtu-R604 RecA-nTheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis '98-R604 INH-RIF-EM'
    Mtu-So93 RecAExp.RecAMtu-H37Rv RecAMycobacterium tuberculosis So93/sub_species="Canetti"
    Mtu-T17 RecA-cTheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis T17
    Mtu-T17 RecA-nTheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis T17
    Mtu-T46 RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis T46
    Mtu-T85 RecATheo.RecAMtu-H37Rv RecAMycobacterium tuberculosis T85
    Mtu-T92 RecATheo.RecAAMtu-H37Rv RecAMycobacterium tuberculosis T92
    RecA (recA-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mch RecATheo.RecAMle-TN RecAMycobacterium chitae
    Mfa RecATheo.RecAMle-TN RecAMycobacterium fallax
    Mfl RecAExp.RecAMle-TN RecAMycobacterium flavescens Fla0
    Mfl-ATCC14474 RecATheo.RecAMle-TN RecAMycobacterium flavescens, ATCC14474
    Mga RecATheo.RecAMle-TN RecAMycobacterium gastri
    Mle-TN RecAExp.RecAMle-TN RecAMycobacterium leprae, strain TN
    Msh RecATheo.RecAMle-TN RecAMycobacterium shimodei
    Mthe RecATheo.RecAMle-TN RecAMycobacterium thermoresistibile
    Tcu-DSM43183 RecATheo.recA proteinMle-TN RecAThermomonospora curvata DSM 43183
    Tfus RecA-2Theo.RecAMle-TN RecAThermobifida fusca YX
    RecA (recA-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pho RadATheo.RadA DNA repair proteinPho RadAPyrococcus horikoshii OT3
    Tfus RecA-1Theo.RecAPho RadAThermobifida fusca YX
    Tko RadATheo.RadA/Rad51 recombinasePho RadAThermococcus kodakaraensis KOD1
    Replication factor C (RFC-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa RCFTheo.Replication factor CMja RFC-1Haloquadratum walsbyi DSM 16790
    Mja RFC-1Theo.Replication factor CMja RFC-1Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Pab RFC-1Theo.Replication factor CMja RFC-1Pyrococcus abyssi
    Pfu RFCTheo.Replication factor CMja RFC-1Pyrococcus furiosus
    Pho RFCTheo.Replication factor CMja RFC-1Pyrococcus horikoshii OT3
    Tko RFCTheo.Replication factor CMja RFC-1Thermococcus kodakaraensis KOD1
    Replication factor C (RFC-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mein-ME RFCTheo.Replication factor CMja RFC-2Methanocaldococcus infernus ME
    Mja RFC-2Theo.Replication factor CMja RFC-2Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mka RFCTheo.Replication factor CMja RFC-2Methanopyrus kandleri AV19
    Tsi-MM739 RFCTheo.Replication factor C small subunitMja RFC-2Thermococcus sibiricus MM 739
    Replication factor C (RFC-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Maeo RFCTheo.Replication factor CMja RFC-3Methanococcus aeolicus Nankai-3
    Mja RFC-3Theo.Replication factor CMja RFC-3Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Pab RFC-2Theo.Replication factor CMja RFC-3Pyrococcus abyssi
    Ribonucleoside Triphosphate Reductase (RIR1-d insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mcht-PCC7420 RIR1-1Theo.ribonucleoside-triphosphate reductase, adenosylcobalamin-dependentNsp-PCC7120 RIR1Microcoleus chthonoplastes PCC 7420
    Naz-0708 RIR1-1Theo.Ribonucleosite ReductaseNsp-PCC7120 RIR1Nostoc azollae 0708
    Nsp-PCC7120 RIR1Exp.Ribonucleoside Triphosphate Reductase, Class IINsp-PCC7120 RIR1Nostoc species PCC7120, (Anabaena sp. PCC7120)
    Ssp-PCC7335 RIR1Theo.ribonucleoside-triphosphate reductaseNsp-PCC7120 RIR1Synechococcus sp. PCC 7335
    Ter RIR1-1Exp.Ribonucleoside Triphosphate Reductase, Class IINsp-PCC7120 RIR1Trichodesmium erythraeum IMS101
    Ribonucleoside-diphosphate reductase (RIR1-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pab RIR1-1Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-1Pyrococcus abyssi
    Pfu RIR1-1Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-1Pyrococcus furiosus
    Tko RIR1-1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-1Thermococcus kodakaraensis KOD1
    Tsp-AM4 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependentPfu RIR1-1Thermococcus sp. AM4
    Ribonucleoside-diphosphate reductase (RIR1-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Aave-AAC001 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependent, RNR, class I_likePfu RIR1-2Acidovorax avenae subsp. citrulli AAC00-1
    Aave-ATCC19860 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependentPfu RIR1-2Acidovorax avenae subsp. avenae ATCC 19860
    Aeh RIR1Theo.Ribonucleoside reductase, RNR, class I_likePfu RIR1-2Alkalilimnicola ehrlichei MLHE-1
    Cag RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Chlorochromatium aggregatum
    Cch RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Chlorobium chlorochromatii CaD3
    Chy RIR1Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Carboxydothermus hydrogenoformans Z-2901
    Daud RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Candidatus Desulforudis audaxviator MP104C
    Dha-DCB2 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Desulfitobacterium hafniense DCB-2
    Dha-Y51 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunit, RNR, class I_likePfu RIR1-2Desulfitobacterium hafniense Y51
    Dpr-MLMS1 RIR1Theo.Ribonucleoside- diphosphate reductase, hypothetical protein MldDRAFT_4655Pfu RIR1-2delta proteobacterium MLMS-1
    Dra RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Deinococcus radiodurans R1,TIGR strain
    Fac-Fer1 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Ferroplasma acidarmanus, taxon:97393 and taxon 261390
    Fac-TypeI RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Ferroplasma acidarmanus type I,
    Gvi RIR1-2Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Gloeobacter violaceus, PCC 7421
    Mca RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Methylococcus capsulatus Bath
    Mcht-PCC7420 RIR1-2Theo.ribonucleoside-triphosphate reductase, adenosylcobalamin-dependentPfu RIR1-2Microcoleus chthonoplastes PCC 7420
    Mth RIR1Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Methanothermobacter thermautotrophicus (Methanobacterium thermoautotrophicum)
    Pab RIR1-3Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Pyrococcus abyssi
    Par RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Pyrobaculum arsenaticum DSM 13514
    Pfu RIR1-2Exp.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Pyrococcus furiosus
    Pho RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Pyrococcus horikoshii OT3
    Plut RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Pelodictyon luteolum DSM 273
    Pna RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunit, RNR, class I_likePfu RIR1-2Polaromonas naphthalenivorans CJ2
    Posp-JS666 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Polaromonas species JS666
    Rce RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Rhodospirillum centenum SW
    Rsp RIR1Theo.Ribonucleoside reductase, RNR, class I_likePfu RIR1-2Roseovarius species 217
    Sel-PC6301 RIR1Theo.Ribonucleoside Triphosphate ReductasePfu RIR1-2Synechococcus elongatus PCC 6301
    Sel-PC7942 RIR1Theo.Ribonucleoside Triphosphate ReductasePfu RIR1-2Synechococcus elongatus PC7942
    Ssp-JA2 RIR1Theo.Ribonucleoside Triphosphate Reductase, RNR, class IIPfu RIR1-2Synechococcus species JA-2-3B'a(2-13)
    Ssp-JA3 RIR1Theo.Ribonucleoside Triphosphate Reductase, RNR, class IIPfu RIR1-2Synechococcus species JA-3-3Ab
    Taq-Y51MC23 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependentPfu RIR1-2Thermus aquaticus Y51MC23
    Ter RIR1-2Exp.Ribonucleoside Triphosphate Reductase, Class IIPfu RIR1-2Trichodesmium erythraeum IMS101
    Thsp-K90 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependentPfu RIR1-2Thioalkalivibrio sp. K90mix
    Tko RIR1-2Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Thermococcus kodakaraensis KOD1
    Tth-DSM571 RIR1Theo.ribonucleoside-diphosphate reductase, adenosylcobalamin-dependentPfu RIR1-2Thermoanaerobacterium thermosaccharolyticum DSM 571
    Tth-HB27 RIR1-2Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Thermus thermophilus HB27
    Tth-HB8 RIR1-2Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2Thermus thermophilus HB8
    Unc-ERS RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitPfu RIR1-2uncultured archaeon GZfos9C4
    Ribonucleoside-diphosphate reductase (RIR1-e insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Gvi RIR1-1Theo.Ribonucleoside- diphosphate reductase, alpha subunitGvi RIR1-1Gloeobacter violaceus, PCC 7421
    Tth-HB27 RIR1-1Theo.Ribonucleoside- diphosphate reductase, alpha subunitGvi RIR1-1Thermus thermophilus HB27
    Tth-HB8 RIR1-1Theo.Ribonucleoside- diphosphate reductase, alpha subunitGvi RIR1-1Thermus thermophilus HB8
    Ribonucleoside-diphosphate reductase (RIR1-g insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Hwa RIR1-2Theo.Ribonucleoside- diphosphate reductase, alpha subunitTer RIR1-4Haloquadratum walsbyi DSM 16790
    Naz-0708 RIR1-2Theo.Ribonucleosite ReductaseTer RIR1-4Nostoc azollae 0708
    Ter RIR1-4Exp.Ribonucleoside Triphosphate Reductase, Class IITer RIR1-4Trichodesmium erythraeum IMS101
    Ribonucleoside-diphosphate reductase (RIR1-h insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Avin RIR1 BILTheo.Ribonucleoside- diphosphate reductase, alpha subunitCroV RIR1Azotobacter vinelandii
    CroV RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCroV RIR1Cafeteria roenbergensis virus BV-PW1
    Ribonucleoside-diphosphate reductase (RIR1-i insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    BsuP-M1918 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1B.subtilis M1918 (prophage)
    BsuP-SPBc2 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1B.subtilis strain 168 Sp beta c2 prophage
    CIV RIR1Exp.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1Chilo iridescent virus
    CV-NY2A RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1Chlorella virus NY2A infects Chlorella NC64A, which infects Paramecium bursaria
    CZIV RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunit, RNR, class ICIV RIR1Costelytra zealandica iridescent virus
    Cwa RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1Crocosphaera watsonii WH 8501 (Synechocystis sp. WH 8501)
    IIV6 RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1Invertebrate iridescent virus 6
    Sep RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitCIV RIR1Staphylococcus epidermidis RP62A
    Sru RIR1Theo.Ribonucleoside-diphosphate reductase, alpha chain, RNR, class ICIV RIR1Salinibacter ruber DSM 13855
    WIV RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunit, RNR, class ICIV RIR1Wiseana iridescent virus
    Ribonucleoside-diphosphate reductase (RIR1-j insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Ace RIR1Theo.Ribonucleoside diphosphate reductase, RNR, class I_likeNfa RIR1Acidothermus cellulolyticus 11B
    Fsp-CcI3 RIR1Theo.Ribonucleoside diphosphate reductase, B12-dependent, RNR, class I_likeNfa RIR1Frankia species CcI3
    Nfa RIR1Theo.Ribonucleoside- diphosphate reductase, alpha subunitNfa RIR1Nocardia farcinica IFM 10152
    Ribonucleotide reductase, Anaerobic (RNR-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Maeo RNRTheo.Ribonucleotide-triphosphate reductase, Anaerobic, RNR, class IIIMja RNR-1Methanococcus aeolicus Nankai-3
    Mja RNR-1Theo.Ribonucleotide reductase, Anaerobic, RNR, class IIIMja RNR-1Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Tye RNR-2Theo.Ribonucleotide-triphosphate reductase, Anaerobic, RNR, class IIIMja RNR-1Thermodesulfovibrio yellowstonii DSM 11347
    Ribonucleotide reductase, Anaerobic (RNR-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Mja RNR-2Theo.Ribonucleotide reductase, Anaerobic, RNR, class IIIMja RNR-2Methanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Unc-ERS RNRTheo.Ribonucleotide reductase, AnaerobicMja RNR-2uncultured archaeon GZfos10C7
    Ribonucleotide reductase, Anaerobic (RNR-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    CbP-C-St RNRTheo.Ribonucleotide reductase, Anaerobic, RNR, class IIICbP-C-St RNRClostridium botulinum phage C-St
    CbP-D1873 RNRTheo.Ribonucleotide reductase, Anaerobic,large subunit, RNR, class IIICbP-C-St RNRClostridium botulinum phage D
    RNA polymerase II, RPB2 (RPB2-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cmo RPB2 (RpoBb)Theo.DNA-directed RNA polymerase beta subunit, fragment 2Cst RPB2Chlamydomonas moewusii, strain UTEX 97
    Cst RPB2Theo.DNA-directed RNA polymerase II, second largest subunitCst RPB2Coelomomyces stegomyiae
    Fte RPB2 (RpoB)Theo.DNA-directed RNA polymerase beta subunit, fragment 2Cst RPB2Floydiella terrestris, strain UTEX 1709
    Sas RPB2Theo.DNA-directed RNA polymerase II, second largest subunitCst RPB2Spiromyces aspiralis NRRL 22631
    She RPB2 (RpoB)Theo.DNA-directed RNA polymerase beta subunitCst RPB2Stigeoclonium helveticum, strain UTEX 441
    RNA polymerase II, RPB2 (RPB2-c insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Bde-JEL197 RPB2Theo.DNA-directed RNA polymerase II, second largest subunitBde-JEL197 RPB2Batrachochytrium dendrobatidis JEL197
    Bde-JEL423 RPC2Theo.DNA-directed RNA polymerase III,second largest subunitBde-JEL197 RPB2Batrachochytrium dendrobatidis JEL423
    RNA terminal phosphate cyclase operon orfB (rtcB-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Maeo-N3 RtcBTheo.Protein of unknown function UPF0027Mja RtcBMethanococcus aeolicus Nankai-3
    Mja RtcB (Mja Hyp-2)Theo.RNA terminal phosphate cyclase operon orfBMja RtcBMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mka RtcBTheo.RNA terminal phosphate cyclase operon orfBMja RtcBMethanopyrus kandleri AV19
    Pab RtcB (Pab Hyp-2)Theo.RNA terminal phosphate cyclase operon orfBMja RtcBPyrococcus abyssi
    Pfu RtcB (Pfu Hyp-2)Theo.RNA terminal phosphate cyclase operon orfBMja RtcBPyrococcus furiosus
    Pho RtcB (Pho Hyp-2)Theo.RNA terminal phosphate cyclase operon orfBMja RtcBPyrococcus horikoshii OT3
    Tsp AM4 RtcBTheo.Protein of unknown function UPF0027Mja RtcBThermococcus sp. AM4
    Snf2 helicase/Rad54 -related protein, (snf2-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Dra Snf2-cTheo.SNF2/Rad54 helicaseDra Snf2Deinococcus radiodurans R1, TIGR strain
    Dra Snf2-nTheo.SNF2/Rad54 helicaseDra Snf2Deinococcus radiodurans R1, TIGR strain
    Dra-ATCC13939 Snf2Exp.SNF2/Rad54 helicaseDra Snf2Deinococcus radiodurans R1, ATCC13939/Brooks & Murray strain
    Sav RecG HelicaseTheo.ATP-dependent DNA helicaseDra Snf2Streptomyces avermitilis MA-4680
    Ter Snf2Theo.SNF2/Rad54 helicaseDra Snf2Trichodesmium erythraeum IMS101
    SufB FeS assembly protein, formerly Pps1 (SufB-b inseriton site)
    Intein Name Class  Extein Prototype Allele Organism
    Fac-Fer1 SufB (Fac Pps1)Theo.FeS assembly protein SufB, formerly Pps1Mtu SufBFerroplasma acidarmanus
    Fac-typeI SufB (Fac Pps1)Theo.FeS assembly protein SufB, formerly Pps1Mtu SufBFerroplasma acidarmanus
    Mbo Pps1Theo.FeS assembly protein SufB, formerly Pps1Mtu SufBMycobacterium bovis subsp. bovis AF2122/97
    Mbo SufB (Mbo Pps1)Theo.FeS assembly protein SufB, formerly Pps1Mtu SufBMycobacterium bovis subsp. bovis AF2122/97
    Mtu SufB (Mtu Pps1)Theo.FeS assembly protein SufB, formerly Pps1Mtu SufBMycobacterium tuberculosis strains H37Rv & CDC1551
    Threonyl-tRNA synthetase (thrRS-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cpa ThrRSTheo.Threonyl-tRNA synthetaseCtr ThrRSCandida parapsilosis, strain CLIB214
    Ctr ThrRSTheo.Threonyl-tRNA synthetaseCtr ThrRSCandida tropicalis ATCC750
    UDP-glucose 6-dehydrogenase (UDP_GD-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Maeo-N3 UDP GDTheo.UDP-glucose 6-dehydrogenaseMja UDP GDMethanococcus aeolicus Nankai-3
    Mja UDP GDTheo.UDP-glucose 6-dehydrogenaseMja UDP GDMethanococcus jannaschii (Methanocaldococcus jannaschii DSM 2661)
    Mvu-M7 UDP GDTheo.nucleotide sugar dehydrogenaseMja UDP GDMethanocaldococcus vulcanius M7
    Vacuolar ATPase / H+-transporting ATP synthase (VMA-a insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Cgl VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMACandida glabrata
    Ctr VMAExp.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMACandida tropicalis (nucleus)
    Ctr-MYA3404 VMATheo.Vacuolar ATP synthase catalytic subunit ASce VMACandida tropicalis MYA-3404
    Dhan VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMADebaryomyces hansenii CBS767
    Kex-CBS379 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAKazachstania exigua, formerly Saccharomyces exiguus, strain CBS379
    Kla-CBS683 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAKluyveromyces lactis, strain CBS683
    Kla-IFO1267 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAKluyveromyces lactis IFO1267
    Kla-NRRLY1140 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAKluyveromyces lactis NRRL Y-1140
    Lel VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMALodderomyces elongisporus
    Pst VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAPichia stipitis CBS 6054, taxon:322104
    Sca-CBS4309 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces castellii, strain CBS4309
    Sca-IFO1992 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces castellii, strain IFO1992
    Scar VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cariocanus, strain="UFRJ 50791
    Sce VMAExp.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae (nucleus)
    Sce-DH1-1A VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae strain DH1-1A
    Sce-JAY291 VMATheo.Tfp1p/ Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae JAY291
    Sce-OUT7091 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae OUT7091
    Sce-OUT7112 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae OUT7112
    Sce-YJM789 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces cerevisiae strain YJM789
    Sda VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces dairenensis, strain CBS 421
    Sex-IFO1128 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces exiguus, strain="IFO1128"
    Sja VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASchizosaccharomyces japonicus yFS275
    Spa VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces pastorianus IFO11023
    Sun VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMASaccharomyces unisporus, strain CBS 398
    Tgl VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMATorulaspora globosa, strain CBS 764
    Tpr VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMATorulaspora pretoriensis, strain CBS 5080
    Vpo VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAVanderwaltozyma polyspora, formerly Kluyveromyces polysporus, strain CBS 2163
    Zba VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAZygosaccharomyces bailii, strain CBS 685
    Zbi VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAZygosaccharomyces bisporus, strain CBS 702
    Zro VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit ASce VMAZygosaccharomyces rouxii, strain CBS 688
    Vacuolar ATPase / H+-transporting ATP synthase (VMA-b insertion site)
    Intein Name Class  Extein Prototype Allele Organism
    Pab VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAPyrococcus abyssi
    Pfu VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAPyrococcus furiosus
    Pho VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAPyrococcus horikoshii OT3
    Pto VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAPicrophilus torridus, DSM 9790
    Tac-ATCC25905 VMAExp.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAThermoplasma acidophilum, ATCC 25905
    Tac-DSM1728 VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAThermoplasma acidophilum, DSM1728
    Tvo VMATheo.Vacuolar ATPase (H+-transporting ATP synthase), subunit APho VMAThermoplasma volcanium GSS1

  • Last database update: 11/05/10

    InBase Home Background Info Splicing mechanism Splicing motifs DOD Endo motifs
    Intein registry Intein alleles Selected properties Blast against InBase  
    Do you have an intein? Submitting data Bibliography Intein links NEB Home