\Nterm{intra} \MRs{18..35} \MRs{49..67} \MRs{94..115} \MRs{136..156} \MRs{165..184} \MRs{211..232} \labelregion{189..189}{SITE}{HG(2+)-SENSITIVE RESIDUE} \labelregion{159..162}{DOMAIN}{POLY-ARG} \glycosylation{42} \glycosylation{205} \labelregion{45..45}{VARIANT}{A->V (IN CO(A-B+) ANTIGEN)} \sequence{MASEIKKKLFWRAVVAEFLAMTLFVFISIGSALGFNYPLERNQTLVQDNVKVSLAFGLSIA TLAQSVGHISGAHSNPAVTLGLLLSCQISILRAVMYIIAQCVGAIVASAILSGITSSLLENSLGRNDLARG VNSGQGLGIEIIGTLQLVLCVLATTDRRRRDLGGSAPLAIGLSVALGHLLAIDYTGCGINPARSFGSAVLT RNFSNHWIFWVGPFIGSALAVLIYDFILAPRSSDFTDRMKVWTSGQVEEYDLDADDINSRVMKPK}