1snr | pdb_00001snr

Nitric oxide bound to Cu nitrite reductase

spinqualitylabelsall models 1snr, resolution 1.31Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1snr is a 3 chain structure with sequence from Alcfa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: ACT, CU, CU1, NO, TRS Gene: NIRK, NIR (ALCFA) Activity: Nitrite reductase (NO-forming), with EC number 1.7.2.1 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 A copper-nitrosyl intermediate forms during the catalytic cycle of nitrite reductase, the enzyme that mediates the committed step in bacterial denitrification. The crystal structure of a type 2 copper-nitrosyl complex of nitrite reductase reveals an unprecedented side-on binding mode in which the nitrogen and oxygen atoms are nearly equidistant from the copper cofactor. Comparison of this structure with a refined nitrite-bound crystal structure explains how coordination can change between copper-oxygen and copper-nitrogen during catalysis. The side-on copper-nitrosyl in nitrite reductase expands the possibilities for nitric oxide interactions in copper proteins such as superoxide dismutase and prions. Side-on copper-nitrosyl coordination by nitrite reductase.,Tocheva EI, Rosell FI, Mauk AG, Murphy ME Science. 2004 May 7;304(5672):867-70. PMID:15131305 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Nitrite reductase

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