Personal Fellowships:

NWO-VENI grant ‘Structural and Functional Characterization of DNA Mismatch Repair Protein Complexes’.

EMBO long-term fellowship ‘X-ray structure analysis of Pullulanases from Hyperthermophilic Archaea and Bacteria’, Fellowship awarded but not used.

  1. Marie Curie Individual Fellowship ‘X-ray structure analysis of Pullulanases from Hyperthermophilic Archaea and Bacteria’.

  2. NWO-VIDI grant ‘Recombination meets its mismatch: A structural and mechanistic analysis of antirecombination by the DNA mismatch repair machinery.’

Joyce Lebbink


Dr. Ir. Joyce H.G. Lebbink was born on October 6, 1969. She studied Molecular Sciences (specialty Biochemistry) at the Wageningen University and Research Center in the Netherlands from 1988 to 1994. She obtained her PhD in 1999 at the same University, characterizing molecular details of thermostable enzymes at the Department of Microbiology. She further obtained experience in biophysics and structural biology during her Postdoc at the Center for Structural Biochemistry, Karolinska Institute in Sweden. In 2002 she returned to the Netherlands as Postdoc in the Protein Crystallography group of Prof. Titia Sixma at the Netherlands Cancer Institute to study structure and mechanisms of DNA Mismatch Repair. Since September 2007 she is further studying MMR and its interactions with Homologous Recombination at the Molecular Radiation Biology group at the Erasmus Medical Center.

Research interest


DNA mismatch repair (MMR) corrects DNA replication errors and inhibits recombination between DNA with diverging sequences. In both bacteria and eukaryotes, the loss of mismatch repair gives rise to a mutator phenotype. In the most frequent form of familiar cancer, HNPCC (hereditary non-polyposis colon cancer), germline mutations in one of the DNA mismatch repair genes predispose to cancer of the colon, endometrium, ovary and other organs.

We would like to understand in mechanistic detail how the recognition of a DNA mismatch during DNA replication or in recombination intermediates results in intramolecular signaling, repairosome complex formation and ultimately, correct mismatch repair or abortion of the recombination event.

Contact details


Joyce Lebbink

Phone + 31 (0) 10 704 3604

Fax +31 (0) 10 704 4747

Email: j.lebbink@erasmusmc.nl