A low energy short hydrogen bond in very high resolution structures of protein receptor--phosphate complexes.Wang, Z., Luecke, H., Yao, N., Quiocho, F.A.
(1997) Nat Struct Biol 4: 519-522
- PubMed: 9228942
- DOI: https://doi.org/10.1038/nsb0797-519
- Primary Citation of Related Structures:
1IXG, 1IXH, 1IXI
- PubMed Abstract:
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.