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Nature. 1989 Aug 10;340(6233):476-8.

High-frequency nanometre-scale vibration in 'quiescent' flagellar axonemes.

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  • 1Department of Biology, College of Arts and Sciences, University of Tokyo, Japan.

Abstract

The movement of cilia and flagella is based on the interaction between dynein arms and microtubules coupled with ATP hydrolysis. Although it is established that dynein arms cause adjacent microtubules to slide, little is known about the elementary process underlying the force production. To look more closely at the mechano-chemical conversion mechanism, we recently developed an optical method for measuring a nanometre-scale displacement with a time-resolution better than 1 ms. We now report the detection of high frequency (approximately 300 Hz) vibration of sub-nanometre amplitude in non-beating flagellar axonemes. This vibration could reflect the movement of individual activated dynein arms.

PMID:
2526926
[PubMed - indexed for MEDLINE]
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