2cg5

Structure of aminoadipate-semialdehyde dehydrogenase- phosphopantetheinyl transferase in complex with cytosolic acyl carrier protein and coenzyme A

spinqualitylabelsall models 2cg5, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2cg5 is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: COA, MG, NI, PO4 Related: 2byd, 2c43 Activity: L-aminoadipate-semialdehyde dehydrogenase, with EC number 1.2.1.31 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT 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 Mammals utilize a single phosphopantetheinyl transferase for the posttranslational modification of at least three different apoproteins: the carrier protein components of cytosolic and mitochondrial fatty acid synthases and the aminoadipate semialdehyde reductase involved in lysine degradation. We determined the crystal structure of the human phosphopantetheinyl transferase, a eukaryotic phosphopantetheinyl transferase characterized, complexed with CoA and Mg(2+), and in ternary complex with CoA and ACP. The involvement of key residues in ligand binding and catalysis was confirmed by mutagenesis and kinetic analysis. Human phosphopantetheinyl transferase exhibits an alpha/beta fold and 2-fold pseudosymmetry similar to the Sfp phosphopantetheinyl transferase from Bacillus subtilis. Although the bound ACP exhibits a typical four-helix structure, its binding is unusual in that it is facilitated predominantly by hydrophobic interactions. A detailed mechanism is proposed describing the substrate binding and catalytic process. Mechanism and substrate recognition of human holo ACP synthase.,Bunkoczi G, Pasta S, Joshi A, Wu X, Kavanagh KL, Smith S, Oppermann U Chem Biol. 2007 Nov;14(11):1243-53. PMID:18022563 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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