5t4q

Structural highlights

Function

[ATP6_ECO55] Key component of the proton channel; it plays a direct role in the translocation of protons across the membrane. [ATPG_ECO45] 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. [ATPD_ECO45] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. This protein is part of the stalk that links CF(0) to CF(1). It either transmits conformational changes from CF(0) to CF(1) or is implicated in proton conduction. [ATPB_ECO45] Produces ATP from ADP in the presence of a proton gradient across the membrane. The catalytic sites are hosted primarily by the beta subunits. [ATPL_ECO7I] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of between 10-14 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits. [ATPA_ECO45] Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit. [ATPE_ECO45] Produces ATP from ADP in the presence of a proton gradient across the membrane. [ATPF_ECO57] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. Component of the F(0) channel, it forms part of the peripheral stalk, linking F(1) to F(0).

See Also

• ATPase 3D structures

References

1. ↑ Sobti M, Smits C, Wong AS, Ishmukhametov R, Stock D, Sandin S, Stewart AG. Cryo-EM structures of the autoinhibited E. coli ATP synthase in three rotational states. Elife. 2016 Dec 21;5. pii: e21598. doi: 10.7554/eLife.21598. PMID:28001127 doi:http://dx.doi.org/10.7554/eLife.21598