Residues: Glu542~Gln685 (Accession # P02788), with N-terminal His-Tag. Grade & Purity: >95%, 18 kDa as determined by SDS-PAGE reducing conditions. The target protein is fused with N-terminal His-Tag, its sequence is listed below. MGHHHHHHSGSEF-ERYYGYTGAF RCLAENAGDV AFVKDVTVLQ NTDGNNNEAW AKDLKLADFA LLCLDGKRKP VTEARSCHLA MAPNHAVVSR MDKVERLKQV LLHQQAKFGR NGSDCPDKFC LFQSETKNLL FNDNTECLAR LHGKTTYEKY LGPQ