Chains and heterogens:
PDB Chain Sequences:
>3hflH (H:) evqlqqsgaelmkpgasvkisckasgytfsdywiewvkqrpghglewigeilpgsgstny herfkgkatftadtssstaymqlnsltsedsgvyyclhgnydfdgwgqgttltvssaktt ppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytl sssvtvpssprpsetvtcnvahpasstkvdkkivp
>3hflL (L:) divltqspaimsaspgekvtmtcsasssvnymywyqqksgtspkrwiydtsklasgvpvr fsgsgsgtsysltissmetedaatyycqqwgrnptfgggtkleikradaaptvsifppss eqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstltlt kdeyerhnsytceathktstspivksfnrnec
>3hflY (Y:) kvfgrcelaaamkrhgldnyrgyslgnwvcaakfesnfntqatnrntdgstdygilqins rwwcndgrtpgsrnlcnipcsallssditasvncakkivsdgngmnawvawrnrckgtdv qawirgcrl