Strikingly low ATPase activities in flagellar axonemes of a Chlamydomonas mutant missing outer dynein arms.

Abstract excerpt

The ATPase activities in Chlamydomonas axonemes were compared between wild type and a mutant (oda) that lacks entire outer dynein arms, at various ionic strengths and pH values, and in the presence of different concentrations of high-molecular-mass dextran. Over a 0-0.2 M KCl concentration range, the ATPase activity of oda axonemes was found to be 5-12 times lower than that of the wild-type axonemes. The low...

Topics

• Adenosine Triphosphatases
• Chlamydomonas
• Dyneins
• Flagella
• Hydrogen-Ion Concentration
• Kinetics
• Mutation
• Osmolar Concentration
• Potassium Chloride