2026-05-30_00000346|hard|9Z7A

Cryo-EM structure of Secreted extracellular protein A (SepA) from Shigella flexneri complexed with the fragment antigen binding domain of monoclonal antibody 40; Electron microscopy 1.99Å
Protein #1 1033 residues (80% resolved)

ATVSAEIPYQIFRDFAENKGQFTPGTTNISIYDKQGNLVGKLDKAPMADFSSATITTGSLPPGDHTLYSPQYVVTAKHVSGSDTMSFGYAKNTYTAVGTNNNSGLDIKTRRLSKLVTEVAPAEVSDIGAVSGAYQAGGRFTEFYRLGGGMQYVKDKNGNRTQVYTNGGFLVGGTVSALNSYNNGQMITAQTGDIFNPANGPLANYLNMGDSGSPLFAYDSLQKKWVLIGVLSSGTNYGNNWVVTTQDFLGQQPQNDFDKTIAYTSGEGVLQWKYDAANGTGTLTQGNTTWDMHGKKGNDLNAGKNLLFTGNNGEVVLQNSVNQGAGYLQFAGDYRVSALNGQTWMGGGIITDKGTHVLWQVNGVAGDNLHKTGEGTLTVNGTGVNAGGLKVGDGTVILNQQADADGKVQAFSSVGIASGRPTVVLSDSQQVNPDNISWGYRGGRLELNGNNLTFTRLQAADYGAIITNNSEKKSTVTLDLQTLKASDINVPVNTVSIFGGRGAPGDLYYDSSTKQYFILKASSYSPFFSDLNNSSVWQNVGKDRNKAIDTVKQQKIEASSQPYMYHGQLNGNMDVNIPQLSGKDVLALDGSVNLPEGSITKKSGTLIFQGHPVIHAGTTTSSSQSDWETRQFTLEKLKLDAATFHLSRNGKMQGDINATNGSTVILGSSRVFTDRSDGTGNAVSSVEGSATATTVGDQSDYSGNVTLENKSSLQIMERFTGGIEAYDSTVSVTSQNAVFDRVGSFVNSSLTLGKGAKLTAQSGIFSTGAVDVKENASLTLTGMPSAQKQGYYSPVISTTEGINLEDNASFSVKNMGYLSSDIHAGTTAATINLGDSDADAGKTDSPLFSSLMKGYNAVLRGSITGAQSTVNMINALWYSDGKSEAGALKAKGSRIELGDGKHFATLQVKELSADNTTFLMHTNNSRADQLNVTDKLSGSNNSVLVDFLNKPASEMSVTLITAPKGSDEKTFTAGTQQIGFSNVTPVISTEKTDDATKWVLTGYQTTADAGASKAAKDFMASGYKSFLTEVNNL

ATVSAEIPYQIFRDFAENKGQFTPGTTNISIYDKQGNLVGKLDKAPMADFSSATITTGSLPPGDHTLYSPQYVVTAKHVSGSDTMSFGYAKNTYTAVGTNNNSGLDIKTRRLSKLVTEVAPAEVSDIGAVSGAYQAGGRFTEFYRLGGGMQYVKDKNGNRTQVYTNGGFLVGGTVSALNSYNNGQMITAQTGDIFNPANGPLANYLNMGDSGSPLFAYDSLQKKWVLIGVLSSGTNYGNNWVVTTQDFLGQQPQNDFDKTIAYTSGEGVLQWKYDAANGTGTLTQGNTTWDMHGKKGNDLNAGKNLLFTGNNGEVVLQNSVNQGAGYLQFAGDYRVSALNGQTWMGGGIITDKGTHVLWQVNGVAGDNLHKTGEGTLTVNGTGVNAGGLKVGDGTVILNQQADADGKVQAFSSVGIASGRPTVVLSDSQQVNPDNISWGYRGGRLELNGNNLTFTRLQAADYGAIITNNSEKKSTVTLDLQTLKASDINVPVNTVSIFGGRGAPGDLYYDSSTKQYFILKASSYSPFFSDLNNSSVWQNVGKDRNKAIDTVKQQKIEASSQPYMYHGQLNGNMDVNIPQLSGKDVLALDGSVNLPEGSITKKSGTLIFQGHPVIHAGTTTSSSQSDWETRQFTLEKLKLDAATFHLSRNGKMQGDINATNGSTVILGSSRVFTDRSDGTGNAVSSVEGSATATTVGDQSDYSGNVTLENKSSLQIMERFTGGIEAYDSTVSVTSQNAVFDRVGSFVNSSLTLGKGAKLTAQSGIFSTGAVDVKENASLTLTGMPSAQKQGYYSPVISTTEGINLEDNASFSVKNMGYLSSDIHAGTTAATINLGDSDADAGKTDSPLFSSLMKGYNAVLRGSITGAQSTVNMINALWYSDGKSEAGALKAKGSRIELGDGKHFATLQVKELSADNTTFLMHTNNSRADQLNVTDKLSGSNNSVLVDFLNKPASEMSVTLITAPKGSDEKTFTAGTQQIGFSNVTPVISTEKTDDATKWVLTGYQTTADAGASKAAKDFMASGYKSFLTEVNNL
Protein #2 224 residues (88% resolved)

QVQLQESGPGLVKPSETLSLTCTVSGASISSSSYYCIWVRQSPGKGLEWIGTTYYSGTTYHEPSLRSRVSISLDTSKNQFSLMLTSVTAADTARYYCAISYGWGSYVNHWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCD

QVQLQESGPGLVKPSETLSLTCTVSGASISSSSYYCIWVRQSPGKGLEWIGTTYYSGTTYHEPSLRSRVSISLDTSKNQFSLMLTSVTAADTARYYCAISYGWGSYVNHWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCD
Protein #3 215 residues (82% resolved)

EIVLTQSPATLSLSPGERATLSCRASQIFGSDLAWYQHKPGQAPRLLIFNTSNRVTGTPARFSGSGSGTDFTLTINSLEPDDVAVYYCHQRSSWPSITFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC

EIVLTQSPATLSLSPGERATLSCRASQIFGSDLAWYQHKPGQAPRLLIFNTSNRVTGTPARFSGSGSGTDFTLTINSLEPDDVAVYYCHQRSSWPSITFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
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Reference