Chains and heterogens:
PDB Chain Sequences:
>1xc6A (A:) llqkyvtwdehsifvngerlmifsgevhpyrlpvaslyidifekvkalgfncvsfyvdwa llegnpghysaegifdlqpffdaakeagiyllarpgpyinaevsgggfpgwlqrvdgilr tsdeaylkatdnyasniaatiakaqitnggpiilyqpeneysgaccgyngfpdgsymqyi edhardagivvpfisndawaaghnapgtgagavdiyghdsyplgfdcanpstwpsgnlpt yfhtsheqqspstpyslvefqggafdpwggvgfakcaallnhefervfykndfsfgvafl nlymifggtnwgnlghpggytsydygsaisesrnitrekyselkllgnfakvspgylvan pgdlststytntadltvtpllgsnssassffvirhsdyssqasveykltvptsagnltip qlggsltlsgrdskihvtdydvagtnilystaevftwkkfnnekvlvlyggpgehhefav sgassssvvegsssgisskkvgkalvvawdvstarrivqvgslkvflldrnsaynywvpq vptkgtapgysnqettassiivkagylvrsayldgndlhiqadfnattpievvgapsgak nlvingkktqtkvdkngiwsasvaytapkvqlpslkslkwksvdtlpeakntyddsawts adhaytnnsahslqtptslfasdygyhtgallfrghftangkektffvqtkggtayghsi winetyvgswagtsindnnnatytlptlqsgknyvitvvidnmgldedwtigsedmknpr giiqyslsgqeasaiswkltgnlggenyrdtvrgplnegglyaerqgfhqpqpptqkwds sspftgltkpgirfystsfdldlpsgydiplyfnfgnststpaayrvqlyvngyqygkyv nnigpqtsfpvpegilnyhgtnwlalslwaqedngakldsfelinttpvltslgevksvn qpkyqarkgay