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Protein Expression and Purification

Protein Expression and Purification

The Protein Expression and Purification Facility provides expertise, tools and reagents for recombinant protein over-expression and purification.

Service:

  • Provision of cells, vectors, and reagents for expression in insect cells (baculovirus), HEK293 cells (transient expression) and bacteria (E.coli)
    • Email pepcells@mpi-cbg.de to order suspension cultures of SF+ (insect) and HEK293 cells
    • Inquire about assistance and training for baculovirus mediated protein overexpression as well as transient transfection of HEK293 cells at this email (pepcells@mpi-cbg.de)
  • Soluble fragment screen: generate a set of 36 plasmids encoding truncation mutants spanning the target gene and then screen for soluble expression of these fragments in E.coli
    • Affinity purification of any soluble “hits” or other targets fused to His6, GST and MBP tags
  • Reagents provided through Stores (recombinant enzymes for molecular biology, protein biochemistry, and high-throughput screens)

Facility:

  • Advice on protein expression and purification strategies
  • Advice and provision of cells, vectors and reagents for protein over-expression in bacteria, insect and mammalian cells
  • Protocols for expression and purification
  • Provision of equipment for use in the Facility:
    • Avestin - EmulsiFlex-C5 microfluidizer (cell lysis)
    • Agilent Bioanalyzer (protein analysis); please contact Julia Jarrells with questions (contact details)
    • Kühner ISF-4-W shaking incubators (suspension cell culture)