Flagellar filament of bacteria

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(→R vs. L forms)
(→R vs. L forms)
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<Structure size='450' frame='true' align='right' caption='Insert caption here' scene='' />
<Structure size='450' frame='true' align='right' caption='Insert caption here' scene='' />
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The R form of the flagellar filament was obtained in 2003<ref name="yonekura-r-filament">PMID: 12904785</ref>, by fitting a crystallographic model of the monomer<ref name="1io1">PMID: 11268201</ref> into an electron cryomicroscopic density map with resolution as good as 4 &Aring;. The resulting full-length R form monomer, [[1ucu]], included terminal alpha helices that were absent in the crystallographic model.
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The structure of a straight R form of the flagellar filament was obtained in 2003<ref name="1ucu">PMID: 12904785</ref>, by fitting a crystallographic model of the monomer<ref name="1io1">PMID: 11268201</ref> into an electron cryomicroscopic density map with resolution approaching 4 &Aring;. The resulting full-length R form monomer, [[1ucu]], included terminal alpha helices that were absent in the crystallographic model.
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The structure of a straight L form of the flagellar filament was obtained in 2010<ref name="3a5x">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). [http://dx.doi.org/10.1038/nsmb.1774 doi:10.1038/nsmb.1774]</ref>.

Revision as of 12:50, 14 May 2011


R vs. L forms

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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]

Notes

  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
  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
  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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