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Microscopic analysis of the Tap1-deficient mutant JS97. (A) Dark-field micrograph. Bar, 5 μm. (B) Electron micrograph of a JS97 cell showing elongated hooks that do not possess flagellar filaments. The outer sheath was removed by treatment with 1% Triton X-100 reduced as indicated in the text. Bar, 100 nm. (C and D) Electron micrographs of preparations of enriched hooks from JS97. Bars, 100 nm.
