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Staff photo Josy ter Beek

Josy ter Beek

Senior research engineer in Ronnie Berntssons group. Our research is focussed on Type 4 secretion systems, which bacteria use to spread antibiotic resistance and virulence factors.



Works at


I have a PhD in biochemistry and am working as a senior research engineer in the group of Ronnie Berntsson. The research in our group focuses on Type 4 secretion systems in gram positive bacteria. These secretion systems are used by bacteria to transfer DNA: thereby spreading antibiotic resistance and virulence factors.

During my first 4 years at Umeå university, I have investigated the Fe-S cluster that is present in DNA polymerase epsilon (as a postdoc in the group of Erik Johansson). Prior to that, I studied proton transfer in a heme copper oxidase (during my Postdoc at Stockholm University) and during my PhD research I was involved in the discovery and initial characterization of ECF-type ABC transporters (in the membrane enzymology group at the University in Groningen, the Netherlands).

Publication list in pubmed


Please check my personal webpage. You can also view my page on Researchgate, LinkedIn, or follow me on Twitter @Josy_terBeek.

mSphere, American Society for Microbiology (ASM) 2021, Vol. 6, (3)
Lassinantti, Lena; Camacho, Martha I.; Erickson, Rebecca J B; et al.
Journal of Molecular Biology, Elsevier 2020, Vol. 432, (20) : 5681-5695
Schmitt, Andreas; Hirt, Helmut; Järvå, Michael A.; et al.
Nature Communications, Nature Publishing Group 2019, Vol. 10
Parkash, Vimal; Kulkarni, Yashraj; ter Beek, Josy; et al.
Nucleic Acids Research, Oxford University Press 2019, Vol. 47, (11) : 5712-5722
ter Beek, Josy; Parkash, Vimal; Bylund, Göran; et al.
Biochimica et Biophysica Acta - Biomembranes, Elsevier 2017, Vol. 1859, (10) : 1951-1961
ter Beek, Josy; Kahle, Maximilian; Ädelroth, Pia
PLOS ONE, Vol. 11, (3)
ter Beek, Josy; Krause, Nils; Ädelroth, Pia

Research groups

Group member