Contact information

Markku Varjosalo
Tel. +358 2 941 59413
Fax. +358 2 941 59366


Institute of Biotechnology
P.O.Box. 65
00014 University of Helsinki

Street address:
Viikinkaari 1, Biocenter 3

Lab members

Markku Varjosalo, PhD, Docent, Group leader

Markku Varjosalo completed his Ph.D. in 2008 (Medical Systems Biology) in the laboratory of Professor Jussi Taipale. After this he continued his scientific career as a Marie Curie Postdoctoral Fellow in the research group of Professor Ruedi Aebersold in ETH Zurich, Switzerland. He has a strong background in genomics and proteomics.


Tiina Öhman, PhD, Docent

Tiina Öhman completed her PhD in 2006 in the laboratory of Professor Gahmberg in University of Helsinki. After this she worked as a post-doc in the protein chemistry laboratory at Institute of Biotechnology 2007-2015. She is specialized in modern mass spectrometry-based proteomic techniques, particularly quantitative proteomics and PTM analysis.


Helka Göös, MSc

Helka Göös studied biochemistry in University of Eastern Finland in Kuopio. During her undergraduate studies she developed interest in protein chemistry and therefore decided to continue as a graduate student in the field of systems biology of the human transcription factor protein interactions.


Leena Yadav, MSc

Leena Yadav completed Masters of Science in Zoology (cell-biology as specialization) from University of Delhi, India. Her graduate project focuses on protein phosphatase associated molecular networks that are based protein protein interactions .


Xiaonan Liu, MSc

Xiaonan Liu studied Biochemical Engineering in Fuzhou University, China and continued his Master of Science in bioinformatics in Nanyang Technological University, Singapore. His graduate project focuses on (de)phosphorylation regulation of Hedgehog signaling pathway.

Jaakko Teppo, MSc (Pharm)

Jaakko Teppo studied pharmacy in University of Helsinki and is doubly affiliated with both the Faculty of Pharmacy and the Institute of Biotechnology. His graduate project focuses on applying proteomics to drug discovery and development, involving projects related to cardiac regeneration, neuroscience, and cancer. His other research interests include multiomics integration and single cell proteomics.


Kari Salokas, MSc.

Kari Salokas studied cell- and molecular biology in University of Jyväskylä. After working in multiple research groups in the field of cell biology and bioinformatics as an undergraduate, he developed an interest in proteomics and more extensive datasets. His graduate project is focused on interactions of human kinase oncofusions, and their interactions in a cellular environment.


Matias Kinnunen, MSc.

Matias Kinnunen, studied biochemistry in the University of Helsinki. Grew an interest in systems biology and transcription factors during master's studies. Jumped into proteomics after graduation as the opportunity presented itself as a transcription factor related systems biology PhD project. Current interests lie in the interactome of transcription factors and transcription factor related fusions found in cancer. Outside work enjoys drawing and the occasional exercise.


Salla Keskitalo, MSc., MSc MIPS ETHZ

Salla Keskitalo studied biotechnology in University of Kuopio and Medicinal and Industrial Pharmaceutical Sciences in ETH Zurich, Switzerland. Her research activities span from cancer biology to Alzheimer's disease. Currently she focuses on analyzing cellular signaling changes on a proteome level, concentrating on analyzing how the cellular informational flow is transmitted from the cell surface to the nucleus.


Sini Miettinen, B.Ls.

Sini Miettinen has been working in a molecular biology laboratory for over 10 years, and is familiar with several molecular biology techniques including cell culture, protein purification, DNA, RNA and protein gel analysis, PRC, qPCR, and DNA quantification techniques (cloning, transformation, transfection, cross linking, genotyping, making competent cells, staining of mouse embryos and tails, dehydration of mouse embryos). In addition Sini has worked with Illumina Next Gen sequencing instruments and automated liquid handling, and maintained several laboratory instruments. At the moment Sini is taking care of the Core Unit and mass spectrometers in the lab.