Chains and heterogens:
PDB Chain Sequences:
>1c1zA (A:) grtcpkpddlpfstvvplktfyepgeeitysckpgyvsrggmrkficpltglwpintlkc tprvcpfagilengavryttfeypntisfscntgfylngadsakcteegkwspelpvcap iicpppsiptfatlrvykpsagnnslyrdtavfeclpqhamfgndtitctthgnwtklpe crevkcpfpsrpdngfvnypakptlyykdkatfgchdgysldgpeeiectklgnwsamps ckascklpvkkatvvyqgervkiqekfkngmlhgdkvsffcknkekkcsytedaqcidgt ievpkcfkehsslafwktdasdvkpc