3duv

Crystal structure of 3-deoxy-manno-octulosonate cytidylyltransferase from Haemophilus influenzae complexed with the substrate 3-deoxy-manno-octulosonate in the-configuration

spinqualitylabelsall models 3duv, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3duv is a 2 chain structure with sequence from Haemophilus influenzae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.3Å Ligands: KDO, MSE, P4C Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function KDSB_HAEIN Activates KDO (a required 8-carbon sugar) for incorporation into bacterial lipopolysaccharide in Gram-negative bacteria (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The enzyme 3-deoxy-manno-octulosonate cytidylyltransferase (CMP-KDO synthetase; CKS) catalyzes the activation of 3-deoxy-D-manno-octulosonate (or 2-keto-3-deoxy-manno-octonic acid; KDO) by forming CMP-KDO. CKS is unique to Gram-negative bacteria and is an attractive target for the development of antibacterial agents. The crystal structure of CKS from Haemophilus influenzae in complex with the substrate KDO has been determined at 2.30 A resolution by combining single-wavelength anomalous diffraction and molecular-replacement methods. The two monomers in the asymmetric unit differ in the conformation of their C-terminal alpha-helix (Ala230-Asn254). The KDO bound to the active site exists as the beta-pyranose form in the (5)C(2) chair conformation. The structure of CKS from H. influenzae in complex with KDO will be useful in structure-based inhibitor design. Structure of 3-deoxy-manno-octulosonate cytidylyltransferase from Haemophilus influenzae complexed with the substrate 3-deoxy-manno-octulosonate in the beta-configuration.,Yoon HJ, Ku MJ, Mikami B, Suh SW Acta Crystallogr D Biol Crystallogr. 2008 Dec;64(Pt 12):1292-4. Epub 2008, Nov 18. PMID:19018107 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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