Chains and heterogens:
PDB Chain Sequences:
>1bgp_ (-) aeppvapglsfdfywqtcpraesivrefvqeavrkdiglaagllrlhfhdcfvqgcdasv lldgsatgpgeqqappnltlrpsafkavndirdrlerecrgavvscsdilalaardsvvv sggpdyrvplgrrdsrsfastqdvlsdlpgpssnvqsllallgrlgldatdlvtisgght iglahcssfedrlfprpdptisptflsrlkrtcpakgtdrrtvldvrtpnvfdnkyyidl vnreglfvsdqdlftnaitrpiverfaqsqqdffeqfgvsigkmgqmrvrtsdqgevrrn csvrnpgpg