Chains and heterogens:
PDB Chain Sequences:
>1e3jA (A:) dnlsavlykqndlrleqrpipepkedevllqmayvgicgsdvhyyehgriadfivkdpmv igheasgtvvkvgknvkhlkkgdrvavepgvpcrrcqfckegkynlcpdltfcatppddg nlaryyvhaadfchklpdnvsleegalleplsvgvhacrragvqlgttvlvigagpiglv svlaakaygafvvctarsprrlevakncgadvtlvvdpakeeessiierirsaigdlpnv tidcsgnekcitiginitrtggtlmlvgmgsqmvtvplvnacareidiksvfrycndypi alemvasgrcnvkqlvthsfkleqtvdafeaarkkadntikvmiscrq