2026-08-22_00000038|hard|12ID

Cryo-EM structure of B/Lee/1940 hemagglutinin trimer in complex with three KL-BHA-3F4 Fab fragments; Electron microscopy 2.40Å
Protein #1 522 residues (80% resolved)

DRICTGITSSNSPHVIKTATQGEVNVTGVIPLTTTPTRSHFANLKGTQTRGKLCPNCFDCTDLDVALGRPKCMGNIPSAKVSILHEVKPVTSGCFPIMHDRTKIRQLPNLLRGYENIRLSTSNVINAETAPGGPYKVGTSGSCPNVANRNGFFNTMAWVIPQDNNKTAINPVTVEVPYICSEGEDQITVWGFHSDDKTQMERLYGDSNPQKFTSSANGVTTHYVSQIGGFPNQTEDEGLKQSGRIVVDYMVQKPGKTGTIVYQRGILLPQKVWCASGRSKVIKGSLPLIGEADCLHEKYGGLNKSKPYYTGEHAKAIGNCPIWVKTPLKLANGTKYRPPAKLLKERGFFGAIAGFLEGGWEGMIAGWHGYTSHGAHGVAVAADLKSTQEAINKITKNLNSLSELEVKNLQRLSGAMNGLHDEILELDEKVDDLRADTISSQIELAVLLSNEGIINSEDEHLLALERKLKKMLGPSAVEIGNGCFETKHKCNQTCLDRIAAGTFNAGDFSLPTFDSLNITAAS

DRICTGITSSNSPHVIKTATQGEVNVTGVIPLTTTPTRSHFANLKGTQTRGKLCPNCFDCTDLDVALGRPKCMGNIPSAKVSILHEVKPVTSGCFPIMHDRTKIRQLPNLLRGYENIRLSTSNVINAETAPGGPYKVGTSGSCPNVANRNGFFNTMAWVIPQDNNKTAINPVTVEVPYICSEGEDQITVWGFHSDDKTQMERLYGDSNPQKFTSSANGVTTHYVSQIGGFPNQTEDEGLKQSGRIVVDYMVQKPGKTGTIVYQRGILLPQKVWCASGRSKVIKGSLPLIGEADCLHEKYGGLNKSKPYYTGEHAKAIGNCPIWVKTPLKLANGTKYRPPAKLLKERGFFGAIAGFLEGGWEGMIAGWHGYTSHGAHGVAVAADLKSTQEAINKITKNLNSLSELEVKNLQRLSGAMNGLHDEILELDEKVDDLRADTISSQIELAVLLSNEGIINSEDEHLLALERKLKKMLGPSAVEIGNGCFETKHKCNQTCLDRIAAGTFNAGDFSLPTFDSLNITAAS
Protein #2 123 residues (100% resolved)

KVQLQQSGAGLVKPGASVKLSCKASGYTFTEYIIHWVKQRSGQGLEWIGWFYPGSGSIRFNEKFKDKATLTADKSSSTVYMELSRLTSEDSAVYFCARHGSIYYDYQGYFDYWGQGTTLTVSS

KVQLQQSGAGLVKPGASVKLSCKASGYTFTEYIIHWVKQRSGQGLEWIGWFYPGSGSIRFNEKFKDKATLTADKSSSTVYMELSRLTSEDSAVYFCARHGSIYYDYQGYFDYWGQGTTLTVSS
Protein #3 107 residues (100% resolved)

DIVMTQSHKFMSTSVGDRVSITCKASQDVSSTIAWYQQKPGQSPKLLIYWASTRHTGVPDRFTGSGSGTDFTLTISNVRAEDLTLYYCQQHYSSPWTFGGGTYLEIK

DIVMTQSHKFMSTSVGDRVSITCKASQDVSSTIAWYQQKPGQSPKLLIYWASTRHTGVPDRFTGSGSGTDFTLTISNVRAEDLTLYYCQQHYSSPWTFGGGTYLEIK
Non polymer #4 NAG

InChI=1S/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6-,7-,8-/m1/s1

CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](O[C@H]1O)CO)O)O
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Reference