Chains and heterogens:
PDB Chain Sequences:
>1h54A (A:) mkrifevqpwnvithtfdpkdkrlqesmtslgngymgmrgdfeegysgdslqgiylggvw ypdktrvgwwkngypkyfgkvvnavnfiklpieingepvdlakdkisdftldldmhqgvl nrsfvvergavrvalnfqrflsvaqpelsvqkvtvknlsdaevdvtlkpsidadvmneea nyderfwdvlatdqqadrgsivakttpnpfgtprftsgmemrlvtdlknvaitqpnekev ttaytgklapqasaelekrvivvtsrdydtqesltaamhqlsdkvaqssyedllnahtai waqrweksdvvikgddesqqgirfnlfqlfstyygedarlnigpkgftgekyggatywdt eafafpvylgitdpkvtrnllmyrykqldgayinaqeqglkgalfpmvtfdgiechnewe itfeeihrngdiafaiynytrytgddsyvlhegakvlteisrfwadrvhfskrnnqymih gvtgadeyennvdnnwdtnmlaqwtlkytleilgkvdqdtakqldvsdeektkwqdivdr mylpydkdlnifvqhdgfldkdiepvssipadqrpinqnwswdkilrspyikqgdvlqgi wdfiddytpeqkkanfdfyepltvhesslspaihsvlaadlhyedkavelysrtarldld nynndttdglhitsmtgawiavvqgfagmrvrdgqlhyapflpktwtsytfrqvfrdrli evsvhadgphfkllsgepltidvagaaaaaaaaa
>1h54A (A:) mkrifevqpwnvithtfdpkdkrlqesmtslgngymgmrgdfeegysgdslqgiylggvw ypdktrvgwwkngypkyfgkvvnavnfiklpieingepvdlakdkisdftldldmhqgvl nrsfvvergavrvalnfqrflsvaqpelsvqkvtvknlsdaevdvtlkpsidadvmneea nydrfwdvlatdqqadrgsivakttpnpfgtprftsgmemrlvtdlknvaitqpnekevt taytgklapqasaelekrvivvtsrdydtqesltaamhqlsdkvaqssyedllnahtaiw aqrweksdvvikgddesqqgirfnlfqlfstyygedarlnigpkgftgekyggatywdte afafpvylgitdpkvtrnllmyrykqldgayinaqeqglkgalfpmvtfdgiechnewei tfeeihrngdiafaiynytrytgddsyvlhegakvlteisrfwadrvhfskrnnqymihg vtgadeyennvdnnwdtnmlaqwtlkytleilgkvdqdtakqldvsdeektkwqdivdrm ylpydkdlnifvqhdgfldkdiepvssipadqrpinqnwswdkilrspyikqgdvlqgiw dfiddytpeqkkanfdfyepltvhesslspaihsvlaadlhyedkavelysrtarldldn ynndttdglhitsmtgawiavvqgfagmrvrdgqlhyapflpktwtsytfrqvfrdrlie vsvhadgphfkllsgepltidvagaaaaaaaaa
>1h54B (B:) mkrifevqpwnvithtfdpkdkrlqesmtslgngymgmrgdfeegysgdslqgiylggvw ypdktrvgwwkngypkyfgkvvnavnfiklpieingepvdlakdkisdftldldmhqgvl nrsfvvergavrvalnfqrflsvaqpelsvqkvtvknlsdaevdvtlkpsidadvmneea nyderfwdvlatdqqadrgsivakttpnpfgtprftsgmemrlvtdlknvaitqpnekev ttaytgklapqasaelekrvivvtsrdydtqesltaamhqlsdkvaqssyedllnahtai waqrweksdvvikgddesqqgirfnlfqlfstyygedarlnigpkgftgekyggatywdt eafafpvylgitdpkvtrnllmyrykqldgayinaqeqglkgalfpmvtfdgiechnewe itfeeihrngdiafaiynytrytgddsyvlhegakvlteisrfwadrvhfskrnnqymih gvtgadeyennvdnnwdtnmlaqwtlkytleilgkvdqdtakqldvsdeektkwqdivdr mylpydkdlnifvqhdgfldkdiepvssipadqrpinqnwswdkilrspyikqgdvlqgi wdfiddytpeqkkanfdfyepltvhesslspaihsvlaadlhyedkavelysrtarldld nynndttdglhitsmtgawiavvqgfagmrvrdgqlhyapflpktwtsytfrqvfrdrli evsvhadgphfkllsgepltidvagaaaaaaaaa