Flagellar filament of bacteria

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R vs. L formsR vs. L forms

The structure of a straight R form of the flagellar filament was obtained in 2003^[1], by fitting a crystallographic model of the monomer^[2] into an electron cryomicroscopic density map with resolution approaching 4 Å. The resulting full-length R form monomer, 1ucu, included terminal alpha helices that were absent in the crystallographic model.

The structure of a straight L form of the flagellar filament was obtained in 2010^[3].

^[4]

NotesNotes

↑ Yonekura K, Maki-Yonekura S, Namba K. Complete atomic model of the bacterial flagellar filament by electron cryomicroscopy. Nature. 2003 Aug 7;424(6949):643-50. PMID:12904785 doi:http://dx.doi.org/10.1038/nature01830
↑ Samatey FA, Imada K, Nagashima S, Vonderviszt F, Kumasaka T, Yamamoto M, Namba K. Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling. Nature. 2001 Mar 15;410(6826):331-7. PMID:11268201 doi:10.1038/35066504
↑ Maki-Yonekura, S., K. Yonekura, & K. Namba, 'Conformational change of flagellin for polymorphic supercoiling of the flagellar filament', Nat. Struct. Mol. Biol. 17, 417–422 (2010). doi:10.1038/nsmb.1774
↑ Chemically possible morph generated by the Yale Morph Server (molmovdb.org), 1ucu to 3a5x.

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Eric Martz, Michal Harel

[1ucu-1] Yonekura K, Maki-Yonekura S, Namba K. Complete atomic model of the bacterial flagellar filament by electron cryomicroscopy. Nature. 2003 Aug 7;424(6949):643-50. PMID:12904785 doi:http://dx.doi.org/10.1038/nature01830

[1io1-2] Samatey FA, Imada K, Nagashima S, Vonderviszt F, Kumasaka T, Yamamoto M, Namba K. Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling. Nature. 2001 Mar 15;410(6826):331-7. PMID:11268201 doi:10.1038/35066504

[3a5x-3] Maki-Yonekura, S., K. Yonekura, & K. Namba, 'Conformational change of flagellin for polymorphic supercoiling of the flagellar filament', Nat. Struct. Mol. Biol. 17, 417–422 (2010). doi:10.1038/nsmb.1774

[4] Chemically possible morph generated by the Yale Morph Server (molmovdb.org), 1ucu to 3a5x.

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