Chains and heterogens:
PDB Chain Sequences:
>1ahfA (A:) mfenitaapadpilgladlfraderpgkinlgiglyydetgkipvltsvkkaeqyllene ttklylgidgipefgrctqellfgkgsalindkrartaqtpggsgalrvaadflakntsv krvwvsnpswpnhksvfnsaglevreyayydaenhtldfdalinslneaqagdvvlfhgc chnptgidptleqwqtlaqlsvekgwlplfdfayqgfargleedaeglrafaamhkeliv assysknfglynervgactlvaadsetvdrafsqmkaairanyssppahgasvvatilsn dalraiweqeltdmrqriqrmrqlfvntlqekganrdfsfiikqngmfsfsgltkeqvlr lreefgvyavasgrvnvagmtpdnmaplceaivavl
>1ahfB (B:) mfenitaapadpilgladlfraderpgkinlgiglyydetgkipvltsvkkaeqyllene ttklylgidgipefgrctqellfgkgsalindkrartaqtpggsgalrvaadflakntsv krvwvsnpswpnhksvfnsaglevreyayydaenhtldfdalinslneaqagdvvlfhgc chnptgidptleqwqtlaqlsvekgwlplfdfayqgfargleedaeglrafaamhkeliv assysknfglynervgactlvaadsetvdrafsqmkaairanyssppahgasvvatilsn dalraiweqeltdmrqriqrmrqlfvntlqekganrdfsfiikqngmfsfsgltkeqvlr lreefgvyavasgrvnvagmtpdnmaplceaivavl