1ixg
PHOSPHATE-BINDING PROTEIN MUTANT WITH THR 141 REPLACED BY ASP (T141D), COMPLEXED WITH PHOSPATE
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| , resolution 1.05Å | |||||||
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| Ligands: | |||||||
| Gene: | PHO-S (Escherichia coli) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
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. 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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