title: Transition of bacterial flagella from helical to straight forms with different subunit arrangements.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure*; D005407:Flagella / Q000648:ultrastructure*; D005408:Flagellin; D006863:Hydrogen-Ion Concentration; D008854:Microscopy, Electron; D008954:Models, Biological; D055095:Optics and Photonics; D011487:Protein Conformation; D012475:Salmonella / Q000648:ultrastructure*; D014961:X-Ray Diffraction
chemical_list: D005408:Flagellin