Residues: Ala22~Ser69 (Accession # O89117), with N-terminal His-Tag. Grade & Purity: >95%, 7 kDa as determined by SDS-PAGE reducing conditions The target protein is fused with N-terminal His-Tag, its sequence is listed below. MGHHHHHHSGSEF-AGILTSLGR RTDQYRCLQN GGFCLRSSCP SHTKLQGTCK PDKPNCCRS