4ydr | pdb_00004ydr

Crystal structure of oxidized homoserine dehydrogenase of Sulfolobus tokodaii

spinqualitylabelsall models 4ydr, resolution 1.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4ydr is a 2 chain structure with sequence from Sulfurisphaera tokodaii str. 7. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.6Å Ligands: NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DHOM_SULTO Catalyzes the conversion of L-aspartate-beta-semialdehyde (L-Asa) to L-homoserine (L-Hse), the third step in the biosynthesis of threonine and methionine from aspartate. Publication Abstract from PubMed Homoserine dehydrogenase (HSD; 305 amino acid residues) catalyzes an NAD(P)-dependent reversible reaction between l-homoserine and aspartate 4-semialdehyde and is involved in the aspartate pathway. HSD from the hyperthermophilic archaeon Sulfolobus tokodaii was markedly activated (2.5-fold) by the addition of 0.8 mM dithiothreitol. The crystal structure of the homodimer indicated that the activation was caused by cleavage of the disulfide bond formed between two cysteine residues (C303) in the C-terminal regions of the two subunits. Structural insight into activation of homoserine dehydrogenase from the archaeon Sulfolobus tokodaii via reduction.,Tomonaga Y, Kaneko R, Goto M, Ohshima T, Yoshimune K Biochem Biophys Rep. 2015 Jul 15;3:14-17. doi: 10.1016/j.bbrep.2015.07.006., eCollection 2015 Sep. PMID:29124164 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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