1ixg
PHOSPHATE-BINDING PROTEIN MUTANT WITH THR 141 REPLACED BY ASP (T141D), COMPLEXED WITH PHOSPATE
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OverviewOverview
A very short hydrogen bond between an Asp and a phosphate is established, in two high resolution structures (0.98 and 1.05 A). A mutant complex that, changes the Asp to an Asn, which forms a normal hydrogen bond, has a, similar free energy of binding to the wild type complex, suggesting that, the contribution of the short hydrogen bond is not extraordinarily strong.
About this StructureAbout this Structure
1IXG is a Single protein structure of sequence from Escherichia coli with PO4 as ligand. Full crystallographic information is available from OCA.
ReferenceReference
A low energy short hydrogen bond in very high resolution structures of protein receptor--phosphate complexes., Wang Z, Luecke H, Yao N, Quiocho FA, Nat Struct Biol. 1997 Jul;4(7):519-22. PMID:9228942
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