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Research GBB Membrane Enzymology

Structural Genomics

  • Optimization of gene expression and identification of bottlenecks in protein production. Lactococcus lactis and Escherichia coli are used as hosts for the overexpression of membrane proteins.1,2 A high-throughput method for cloning in E.coli and L. lactis is available. Expression screening by GFP-tagging of proteins is shown in the picture.
  • Hydrodynamic analysis of proteins: analytical ultracentrifugation and multi-angle light scattering-coupled to size-exclusion chromatography are used to determine oligomeric state and monodispersity of membrane proteins.
  • Crystallography: in collaboration with the group of Andy-Mark Thunnissen and Bauke Dijkstra, X-ray crystallography is used to determine high-resolution structures of membrane proteins.
Structural Genomics
Structural Genomics


  1. Kunji, E.R.S., Slotboom, D.-J., and Poolman, B. (2003) Lactococcus lactis as host for overproduction of functional membrane proteins. Biochim. Biophys. Acta, 1610, 97-108.
  2. Geertsma, E.R., and Poolman, B. (2007) High-throughput cloning and expression in recalcitrant bacteria. Nature Meth., 4, 705-707.
Laatst gewijzigd:03 oktober 2012 12:04