Chains and heterogens:
PDB Chain Sequences:
>1cem_ (-) agvpfntkypygptsiadnqsevtamlkaewedwkskritsngaggykrvqrdastnydt vsegmgyglllavcfneqalfddlyryvkshfngnglmhwhidannnvtshdggdgaatd adedialalifadkqwgssgainygqeartlinnlynhcvehgsyvlkpgdrwggssvtn psyfapawykvyaqytgdtrwnqvadkcyqiveevkkynngtglvpdwctasgtpasgqs ydykydatrygwrtavdyswfgdqrakancdmltkffardgakgivdgytiqgskisnnh nasfigpvaaasmtgydlnfakelyretvavkdseyygyygnslrlltllyitgnfpnpl sdl