1yce

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Image:1yce.gif

1yce, resolution 2.40Å

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Structure of the rotor ring of F-type Na+-ATPase from Ilyobacter tartaricus

Overview

In the crystal structure of the membrane-embedded rotor ring of the sodium ion-translocating adenosine 5'-triphosphate (ATP) synthase of Ilyobacter tartaricus at 2.4 angstrom resolution, 11 c subunits are assembled into an hourglass-shaped cylinder with 11-fold symmetry. Sodium ions are bound in a locked conformation close to the outer surface of the cylinder near the middle of the membrane. The structure supports an ion-translocation mechanism in the intact ATP synthase in which the binding site converts from the locked conformation into one that opens toward subunit a as the rotor ring moves through the subunit a/c interface.

About this Structure

1YCE is a Single protein structure of sequence from Ilyobacter tartaricus with and as ligands. Full crystallographic information is available from OCA.

Reference

Structure of the rotor ring of F-Type Na+-ATPase from Ilyobacter tartaricus., Meier T, Polzer P, Diederichs K, Welte W, Dimroth P, Science. 2005 Apr 29;308(5722):659-62. PMID:15860619

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