Calcium sensors in sea urchin sperm flagella
โ Scribed by Brokaw, Charles J.
- Book ID
- 102804314
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 810 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0886-1544
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A high-resolution sodium dodecyl sulfate polyacrylamide gel electrophoresis system has been used to show the presence, in both whole sperm and isolated flagellar axonemes, of eight polypeptides migrating in the 300,000--350,000 molecular weight range characteristic of the heavy chains of dynein ATPa
The movement parameters of a sea urchin sperm flagellum can be manipulated mechanically by applying various modes of periodic vibrations to the sperm head held by suction in the tip of a micropipette. The beat frequency of the flagellum readily synchronizes with the frequency of the externally impos