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I'm sure the exact frequency varies, but does anyone know roughly how many revolutions per minute / second the rotating center part makes?

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up vote 16 down vote accepted

According to "Resolution of distinct rotational substeps by submillisecond kinetic analysis of F1-ATPase" (Yasuda et al., Nature, 2001), ATPase rotates at 130 revolutions per second when saturated with ATP.

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