Chains and heterogens:
PDB Chain Sequences:
>3usfA (A:) fktiksdeifaaaqklmpggvsspvrafksvggqpivfdrvkdayawdvdgnryidyvgt wgpaicghahpeviealkvamekgtsfgapcalenvlaemvndavpsiemvrfvnsgtea cmavlrimraytgrdkiikfegcyhghadmflvkagsgvatlglpsspgvpkkttantlt tpyndleavkalfaenpgeiagvilepivgnsgfivpdagfleglreitlehdallvfde vmtgfriayggvqekfgvtpdlttlgkiiggglpvgayggkreimqlvapagpmyqagtl sgnplamtagiktlellrqpgtyeyldqitkrlsdgllaiaqetghaacggqvsgmfgff ftegpvhnyedakksdlqkfsrfhrgmleqgiylapsqfeagftslahteedidatlaaa rtvmsal
>3usfB (B:) fktiksdeifaaaqklmpggvsspvrafksvggqpivfdrvkdayawdvdgnryidyvgt wgpaicghahpeviealkvamekgtsfgapcalenvlaemvndavpsiemvrfvnsgtea cmavlrimraytgrdkiikfegcyhghadmflvkagsgvatlglpsspgvpkkttantlt tpyndleavkalfaenpgeiagvilepivgnsgfivpdagfleglreitlehdallvfde vmtgfriayggvqekfgvtpdlttlgkiiggglpvgayggkreimqlvapagpmyqagtl sgnplamtagiktlellrqpgtyeyldqitkrlsdgllaiaqetghaacggqvsgmfgff ftegpvhnyedakksdlqkfsrfhrgmleqgiylapsqfeagftslahteedidatlaaa rtvmsal
>3usfB (B:) fktiksdeifaaaqklmpggvsspvrafksvggqpivfdrvkdayawdvdgnryidyvgt wgpaicghahpeviealkvamekgtsfgapcalenvlaemvndavpsiemvrfvnsgtea cmavlrimraytgrdkiikfegcyhghadtantlttpyndleavkalfaenpgeiagvil epivgnsgfivpdagfleglreitlehdallvfdevmtgfriayggvqekfgvtpdlttl gkiiggglpvgayggkreimqlvapagpmyqagtlsgnplamtagiktlellrqpgtyey ldqitkrlsdgllaiaqetghaacggqvsgmfgffftegpvhnyedakksdlqkfsrfhr gmleqgiylapsqfeagftslahteedidatlaaartvmsal