Chains and heterogens:
PDB Chain Sequences:
>3sx4A (A:) efsrktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfd efghsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvt wspvghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalww spngtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdsl ssvtnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgr wnclvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctf itkgtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqy ysvsfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldf iilnetkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniiva sfdgrgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvt smvlgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfk qveyllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythms hfikqcfslppleqkliseedlnsavdhhhhhh
>3sx4A (A:) rktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfdefg hsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvtwsp vghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalwwspn gtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdslssv tnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgrwnc lvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctfitk gtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqyysv sfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldfiil netkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniivasfd grgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvtsmv lgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfkqve yllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythmshfi kqcfslp
>3sx4B (B:) efsrktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfd efghsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvt wspvghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalww spngtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdsl ssvtnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgr wnclvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctf itkgtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqy ysvsfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldf iilnetkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniiva sfdgrgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvt smvlgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfk qveyllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythms hfikqcfslppleqkliseedlnsavdhhhhhh
>3sx4B (B:) rktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfdefg hsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvtwsp vghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalwwspn gtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdslssv tnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgrwnc lvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctfitk gtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqyysv sfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldfiil netkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniivasfd grgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvtsmv lgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfkqve yllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythmshfi kqcfslp