Chains and heterogens:
PDB Chain Sequences:
>4fxbA (A:) mtppesptashtpgatpprdfpiqrgcpfaapaeyaalrtddpvarvtlptrreawvvtr yddvrellsdprvsadirrpgfpalgegeqeagarfrpfirtdapehtryrrmllpaftv rrvramrpavqarvdeildgmlaaggpvdlvsayanavstsvicellgiprhdleffrdv trisgsrnstaeqvsealgglfgllgglvaerreeprddlisklvtdhlvpgnvtteqll stlgitinagretttsmialstlllldrpelpaelrkdpdlmpaavdellrvlsvadsip lrvaaedielsgrtvpaddgviallaganhdpeqfddpervdfhrtdnhhvafgygvhqc vgqhlarlelevaletllrrvptlrlagerdqvvvkhdsatfgleelmvtwhhhhhh
>4fxbA (A:) prdfpiqrgcpfaapaeyaalrtddpvarvtlptrreawvvtryddvrellsdprvsadi rrpgfpgeqeagarfrpfirtdapehtryrrmllpaftvrrvramrpavqarvdeildgm laaggpvdlvsayanavstsvicellgiprhdleffrdvtrisgsrnstaeqvsealggl fgllgglvaerreeprddlisklvtdhlvpgnvtteqllstlgitinagretttsmials tlllldrpelpaelrkdpdlmpaavdellrvlsvadsiplrvaaedielsgrtvpaddgv iallaganhdpeqfddpervdfhrtdnhhvafgygvhqcvgqhlarlelevaletllrrv ptlrlagerdqvvvkhdsatfgleelmvtw
>4fxbB (B:) mtppesptashtpgatpprdfpiqrgcpfaapaeyaalrtddpvarvtlptrreawvvtr yddvrellsdprvsadirrpgfpalgegeqeagarfrpfirtdapehtryrrmllpaftv rrvramrpavqarvdeildgmlaaggpvdlvsayanavstsvicellgiprhdleffrdv trisgsrnstaeqvsealgglfgllgglvaerreeprddlisklvtdhlvpgnvtteqll stlgitinagretttsmialstlllldrpelpaelrkdpdlmpaavdellrvlsvadsip lrvaaedielsgrtvpaddgviallaganhdpeqfddpervdfhrtdnhhvafgygvhqc vgqhlarlelevaletllrrvptlrlagerdqvvvkhdsatfgleelmvtwhhhhhh
>4fxbB (B:) prdfpifaapaeyaalrtddpvarvtlptrreawvvtryddvrellsdprvsadirrpgf rpfirtdapehtryrrmllpaftvrrvramrpavqarvdeildgmlaaggpvdlvsayan avstsvicellgiprhdleffrdvtrisgsraeqvsealgglfgllgglvaerreeprdd lisklvtdhlvpgnvtteqllstlgitinagretttsmialstlllldrpelpaelrkdp dlmpaavdellrvlsvadsiplrvaaedielsgrtvpaddgviallaganhdpeqfddpe rvdfhrtdnhhvafgygvhqcvgqhlarlelevaletllrrvptlrlaerdqvvvkhdsa tfgleelmvt