Chains and heterogens:
PDB Chain Sequences:
>1fxxA (A:) qstflfhdyetfgthpaldrpaqfaairtdsefnvigepevfyckpaddylpqpgavlit gitpqearakgeneaafaarihslftvpktcilgynnvrfddevtrnifyrnfydpyaws wqhdnsrwdlldvmracyalrpeginwpenddglpsfrlehltkangiehsnahdamadv yatiamaklvktrqprlfdylfthrnkhklmalidvpqmkplvhvsgmfgawrgntswva plawhpenrnavimvdlagdisplleldsdtlrerlytaktdlgdnaavpvklvhinkcp vlaqantlrpedadrlginrqhcldnlkilrenpqvrekvvaifaeaepftpsdnvdaql yngffsdadraamkivleteprnlpalditfvdkriekllfnyrarnfpgtldyaeqqrw lehrrqvftpeflqgyadelqmlvqqyaddkekvallkalwqyadeiveh
>1fxxA (A:) qstflfhdyetfgthpaldrpaqfaairtdsefnvigepevfyckpaddylpqpgavlit gitpqearakgeneaafaarihslftvpktcilgynnvrfddevtrnifyrnfydpyaws wqhdnsrwdlldvmracyalrpeginwpeglpsfrlehltkangiehsnahdamadvyat iamaklvktrqprlfdylfthrnkhklmalidvpqmkplvhvsgmfgawrgntswvapla whpenrnavimvdlagdisplleldsdtlrerlytaktdlavpvklvhinkcpvlaqant lrpedadrlginrqhcldnlkilrenpqvrekvvaifaeapsdnvdaqlyngffsdadra amkivleteprnlpalditfvdkriekllfnyrarnfpgtldyaeqqrwlehrrqvftpe flqgyadelqmlvqqyaddkekvallkalwqyadeiveh