3sm8 | pdb_00003sm8

Crystal Structure of Pseudomonas aeruginosa D-Arginine Dehydrogenase in Complex with an (N5) Flavin Adduct

spinqualitylabelsall models 3sm8, resolution 1.07Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3sm8 is a 1 chain structure with sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: FNK, GOL Related: 3nyc, 3nye, 3nyf Gene: dauA, PA3863, PAO1 (Pseudomonas aeruginosa) Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed d-Arginine dehydrogenase (DADH) catalyzes the flavin-dependent oxidative deamination of d-arginine and other d-amino acids to the corresponding imino acids. The 1.07 A atomic-resolution structure of DADH crystallized with d-leucine unexpectedly revealed a covalent N(5) flavin adduct, instead of the expected iminoleucine product in the active site. This acyl adduct has been successfully reproduced by photoreduction of DADH in the presence of 4-methyl-2-oxopentanoic acid (ketoleucine). The iminoleucine may be released readily because of weak interactions in the binding site, in contrast to iminoarginine, converted to ketoleucine, which reacts with activated FAD to form the covalently linked acyl adduct. Atomic-Resolution Structure of an N(5) Flavin Adduct in d-Arginine Dehydrogenase.,Fu G, Yuan H, Wang S, Gadda G, Weber IT Biochemistry. 2011 Jul 26;50(29):6292-4. Epub 2011 Jul 5. PMID:21707047 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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