3cpr

The crystal structure of Corynebacterium glutamicum dihydrodipicolinate synthase to 2.2 A resolution

spinqualitylabelsall models 3cpr, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3cpr is a 2 chain structure with sequence from Corynebacterium glutamicum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.2Å Ligands: KPI Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DAPA_CORGL Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).[HAMAP-Rule:MF_00418] 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 lysine insensitive Corynebacterium glutamicum dihydrodipicolinate synthase enzyme (cDHDPS) was recently successfully introduced into maize plants to enhance the level of lysine in the grain. To better understand lysine insensitivity of the cDHDPS, we expressed, purified, kinetically characterized the protein, and solved its X-ray crystal structure. The cDHDPS enzyme has a fold and overall structure that is highly similar to other DHDPS proteins. A noteworthy feature of the active site is the evidence that the catalytic lysine residue forms a Schiff base adduct with pyruvate. Analyses of the cDHDPS structure in the vicinity of the putative binding site for S-lysine revealed that the allosteric binding site in the Escherichia coli DHDPS protein does not exist in cDHDPS due to three non-conservative amino acids substitutions, and this is likely why cDHDPS is not feedback inhibited by lysine. Characterization and crystal structure of lysine insensitive Corynebacterium glutamicum dihydrodipicolinate synthase (cDHDPS) protein.,Rice EA, Bannon GA, Glenn KC, Jeong SS, Sturman EJ, Rydel TJ Arch Biochem Biophys. 2008 Dec 15;480(2):111-21. Epub 2008 Oct 7. PMID:18930704 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Dihydrodipicolinate synthase

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