Cys-Protein-G

Cys-Protein G Recombinant produced in E.Coli, is a 201 amino acids protein which contains amino acids 190-384 of the Streptococcus sp with a Cysteine residue at the N-terminus, a single non-glycosylated polypeptide chin has a predicted molecular mass of approximately 21.9kDa. But it migrates with an apparent molecular mass of 40kDa in SDS-PAGE. The Cys-Protein G is purified by proprietary chromatographic techniques.