4uyo

Structure of delta7-DgkA in 7.9 MAG by serial femtosecond crystatallography to 2.18 angstrom resolution

spinqualitylabelsall models 4uyo, resolution 2.18Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4uyo is a 6 chain structure with sequence from Escherichia coli K-12. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.18Å Ligands: 79M, 79N, FLC, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function KDGL_ECOLI Recycling of diacylglycerol produced during the turnover of membrane phospholipid. Publication Abstract from PubMed Diacylglycerol kinase catalyses the ATP-dependent conversion of diacylglycerol to phosphatidic acid in the plasma membrane of Escherichia coli. The small size of this integral membrane trimer, which has 121 residues per subunit, means that available protein must be used economically to craft three catalytic and substrate-binding sites centred about the membrane/cytosol interface. How nature has accomplished this extraordinary feat is revealed here in a crystal structure of the kinase captured as a ternary complex with bound lipid substrate and an ATP analogue. Residues, identified as essential for activity by mutagenesis, decorate the active site and are rationalized by the ternary structure. The gamma-phosphate of the ATP analogue is positioned for direct transfer to the primary hydroxyl of the lipid whose acyl chain is in the membrane. A catalytic mechanism for this unique enzyme is proposed. The active site architecture shows clear evidence of having arisen by convergent evolution. Ternary structure reveals mechanism of a membrane diacylglycerol kinase.,Li D, Stansfeld PJ, Sansom MS, Keogh A, Vogeley L, Howe N, Lyons JA, Aragao D, Fromme P, Fromme R, Basu S, Grotjohann I, Kupitz C, Rendek K, Weierstall U, Zatsepin NA, Cherezov V, Liu W, Bandaru S, English NJ, Gati C, Barty A, Yefanov O, Chapman HN, Diederichs K, Messerschmidt M, Boutet S, Williams GJ, Marvin Seibert M, Caffrey M Nat Commun. 2015 Dec 17;6:10140. doi: 10.1038/ncomms10140. PMID:26673816 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Diacylglycerol kinase 3D structures

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