Structural highlights
Function[ATPE_FUSNN] Produces ATP from ADP in the presence of a proton gradient across the membrane. [ATPA_FUSNN] Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit. [ATPG_FUSNN] Produces ATP from ADP in the presence of a proton gradient across the membrane. The gamma chain is believed to be important in regulating ATPase activity and the flow of protons through the CF(0) complex. [ATPB_FUSNN] Produces ATP from ADP in the presence of a proton gradient across the membrane. The catalytic sites are hosted primarily by the beta subunits. Publication Abstract from PubMedThe crystal structure of the F1-catalytic domain of the adenosine triphosphate (ATP) synthase has been determined from the pathogenic anaerobic bacterium Fusobacterium nucleatum. The enzyme can hydrolyse ATP but is partially inhibited. The structure is similar to those of the F1-ATPases from Caldalkalibacillus thermarum, which is more strongly inhibited in ATP hydrolysis, and in Mycobacterium smegmatis, which has a very low ATP hydrolytic activity. The betaE-subunits in all three enzymes are in the conventional 'open' state, and in the case of C. thermarum and M. smegmatis, they are occupied by an ADP and phosphate (or sulfate), but in F. nucleatum, the occupancy by ADP appears to be partial. It is likely that the hydrolytic activity of the F. nucleatum enzyme is regulated by the concentration of ADP, as in mitochondria. Structure of F1-ATPase from the obligate anaerobe Fusobacterium nucleatum.,Petri J, Nakatani Y, Montgomery MG, Ferguson SA, Aragao D, Leslie AGW, Heikal A, Walker JE, Cook GM Open Biol. 2019 Jun 28;9(6):190066. doi: 10.1098/rsob.190066. Epub 2019 Jun 26. PMID:31238823[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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This page was last modified 05:53, 10 July 2019.