Article
Molecular basis of nucleotide-dependent substrate engagement and remodeling by an AAA+ activator.
Nucleic acids research - 1 Aug 2014
Darbari Vidya C, Lawton Ed, Lu Duo, Burrows Patricia C, Wiesler Simone, Joly Nicolas, Zhang Nan, Zhang Xiaodong, Buck Martin
Abstract excerpt
Binding and hydrolysis of ATP is universally required by AAA+ proteins to underpin their mechano-chemical work. Here we explore the roles of the ATPase site in an AAA+ transcriptional activator protein, the phage shock protein F (PspF), by specifically altering the Walker B motif sequence required in catalyzing ATP hydrolysis. One such mutant, the E108Q variant, is defective in ATP hydrolysis but fully remodels...
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