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An Arginine Finger Regulates the Sequential Action of Asymmetrical Hexameric ATPase in the Double-Stranded DNA Translocation Motor.

Molecular and cellular biology - 1 Oct 2016

Zhao Zhengyi, De-Donatis Gian Marco, Schwartz Chad, Fang Huaming, Li Jingyuan, Guo Peixuan

Abstract excerpt

Biological motors are ubiquitous in living systems. Currently, how the motor components coordinate the unidirectional motion is elusive in most cases. Here, we report that the sequential action of the ATPase ring in the DNA packaging motor of bacteriophage ϕ29 is regulated by an arginine finger that extends from one ATPase subunit to the adjacent unit to promote noncovalent dimer formation. Mutation of the...

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Identifiers

PMID: 27457616
DOI: 10.1128/MCB.00142-16
PMCID: PMC5021374

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