Edwin Willemstein †(1993-2020)


To our deep regret, we let you know that Edwin Willemstein passed away on July 10 from acute myeloid leukemia at the age of 26. Edwin was a great technician in the Alfred Vertegaal lab, part of the department of CCB, where he worked on SUMO and its consequences for a host of biological processes.

He was one of the pillars in the lab and will be greatly missed. Early March he became seriously ill and was diagnosed with AML. We will miss him enormously as a committed, dedicated, friendly and happy team member who devoted heart and soul to science. Edwin was also the lab manager for the team. He was the ideal colleague and friend who was full of plans in many areas. He married in the hospital this year. Soccer was another fascination and he inspired us as fanatic team captain of our soccer team ‘the eternal talents’. We have now lost our best ‘eternal talent’ but we will remember him forever for his many contributions to the lab and the many friendships.

We wish his wife Suzanne, his family and friends strength in coping with this great loss.


  • SUMO targets the APC/C to regulate transition from metaphase to anaphase.

    Eifler K, Cuijpers SAG, Willemstein E, Raaijmakers JA, El Atmioui D, Ovaa H, Medema RH, Vertegaal ACO.

    Nat Commun. 2018 Mar doi: 10.1038/s41467-018-03486-4.

  • Converging Small Ubiquitin-like Modifier (SUMO) and Ubiquitin Signaling: Improved Methodology Identifies Co-modified Target Proteins.

    Cuijpers SAG, Willemstein E, Vertegaal ACO.

    Mol Cell Proteomics. 2017 Dec doi: 10.1074/mcp.TIR117.000152


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