Torque-generating units of the bacterial flagellar motor step independently.

AUTOR(ES)

Samuel, A D

RESUMO

Measurements of the variance in rotation period of tethered cells as a function of mean rotation rate have shown that the flagellar motor of Escherichia coli is a stepping motor. Here, by measurement of the variance in rotation period as a function of the number of active torque-generating units, it is shown that each unit steps independently.

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