Two-headed dynein arm
- 31 December 1980
- journal article
- research article
- Published by Biomedical Research Press in Biomedical Research
- Vol. 2 (1), 73-78
- https://doi.org/10.2220/biomedres.2.73
Abstract
The outer dynein arms in 21S dynein fraction from sea urchin [Pseudocentrotus depressus] sperm axonemes and those in NaCl-extracted 50,000 g supernatant fraction from Tetrahymena ciliary axonemes were examined by EM applying a negative staining technique. The extracted outer dynein arm was not seen as a linear polymer of several subunits, but had a heart-like or Y-shaped structure with dimensions of approximately 20 .times. 25 nm. The distal regions of the dynein arm was split with a shallow cleft into 2 heads, each being a globular subunit of about 10 nm in diameter.This publication has 6 references indexed in Scilit:
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