Spinning tails.
The torque-generating, direction-reversing switch proteins of the bacterial flagellar rotary motor form a cytoplasmic extension of the bacterial flagellar basal body. 10 A maps, obtained by electron cryomicroscopy, of the bacterial filament reveal an unusual alpha domain which forms the protein-subunit export channel. The details of subunit export, assembly, and assembly-monitoring machinery are becoming clearer.[1]References
- Spinning tails. DeRosier, D.J. Curr. Opin. Struct. Biol. (1995) [Pubmed]
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