Posttranslational modifications (relative to human) 
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Speed to protein 
Protein yield 
Organism 
System 
Cells 
Media 
Transfection / Delivery 
Expression vector 
Extraction reagent kit 
Additional products Full Structural biology 
Antibody production Virus production Complex proteins Up to 7 days Up to 1 g/L Human Nearly full Biologics development 
Difficult proteins Antbody production Complex proteins Up to 12 days Up to 3 g/L Hamster Partial Intracellular proteins 
Multi-protein complexes Viruses Structural biology Up to 4 weeks Up to 500 mg/L Moth Bac-to-Bac™, BaculoDirect™, Bac-N-Blue™ Partial Industrial enzymes 
Low-complexity proteins Protein-protein interactions Difficult proteins Up to 3 weeks Up to 10 g/L Pichia pastoris PichiaPink™, EasySelect™ Pichia pPINK (LC and HC), pPINKα-HC, pPICZ A, B & C, pPICZα None Bacterial proteins 
X-ray crystallography Basic expression Structural biology Up to 5 days Up to 10 mg/L E. coli Champion™ pET, T7, pBAD None required Partial Rapid protein expression 
Functional assays In vitro labelling Toxic proteins Up to 6 hours Up to 750 mg/L Mammalian HeLa and CHO extracts None required None required pCFE1 (contaning IRES element) None required