SURF2 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 279 amino acids (1-256) and having a molecular mass of 32 kDa. SURF2 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. Purity >90.0% as determined by SDS-PAGE.