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Article

Characterization of the Functionally Critical AXAXAXA and PXXEXXP Motifs of the ATP Synthase c-Subunit from an Alkaliphilic Bacillus.

The Journal of biological chemistry - 27 Mar 2009

Liu Jun, Fujisawa Makoto, Hicks David B, Krulwich Terry A

Abstract excerpt

The membrane-embedded rotor in the F(0) sector of proton-translocating ATP synthases is formed from hairpin-like c-subunits that are protonated and deprotonated during energization of ATP synthesis. This study focuses on two c-subunit motifs that are unique to synthases of extremely alkaliphilic Bacillus species. One motif is the AXAXAXA sequence found in the N-terminal helix-1 instead of the GXGXGXG of...

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Identifiers

PMID: 19176524
DOI: 10.1074/jbc.M808738200
PMCID: PMC2659230

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