Chains and heterogens:
PDB Chain Sequences:
>1bqlH (H:) evqlqqsgaelmkpgasvkisckasgytfsdywiewvkqrpghglewigeilpgsgstny herfkgkatftadtssstaymqlnsltsedsgvyyclhgnydfdgwgqgttltvssaktt ppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytl sssvtvpssprpsetvtcnvahpasstkvdkkivp
>1bqlH (H:) vqlqqsgaelmkpgasvkisckasgytfsdywiewvkqrpghglewigeilpgsgstnyh erfkgkatftadtssstaymqlnsltsedsgvyyclhgnydfdgwgqgttltvssakttp psvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytls ssvtvpssprpsetvtcnvahpasstkvdkkivp
>1bqlL (L:) divltqspaimsaspgekvtmtcsasssvnymywyqqksgtspkrwiydtsklasgvpvr fsgsgsgtsysltissmetedaatyycqqwgrnptfgggtkleikradaaptvsifppss eqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstltlt kdeyerhnsytceathktstspivksfnrnec
>1bqlY (Y:) kvfgrcelaaamkrhgldnyrgyslgnwvcaakfesnfnsqatnrntdgstdygvlqins rwwcndgktpgsrnlcnipcsallssditatvncakkivsdgngmnawvawrnrckgtdv qawirgcrl