Chains and heterogens:
PDB Chain Sequences:
>1g4xA (A:) mfenitaapadpilgladlfraderpgkinlgigvykdetgktpvltsvkkaeqyllene ttknylgidgipefgrctqellfgkgsalindkrartaqtpggtgalrvaadflakntsv krvwvsnpswpnhksvfnsaglevreyayydaenhtldfdalinslneaqagdvvlfhgc chaptgidptleqwqtlaqlsvekgwlplfdfayqgfargleedaeglrafaamhkeliv assysknfglynervgactlvaadsetvdrafsqmkaailanysnppahgasvvatilsn dalraiweqeltdmrqriqrmrqlfvntlqekganrdfsfiikqngmfsfsgltkeqvlr lreefgvyavasgrvnvagmtpdnmaplceaivavl