1qni
From Proteopedia
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| - | [[Image:1qni.jpg|left|200px]]<br /><applet load="1qni" size=" | + | [[Image:1qni.jpg|left|200px]]<br /><applet load="1qni" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1qni, resolution 2.40Å" /> | caption="1qni, resolution 2.40Å" /> | ||
'''CRYSTAL STRUCTURE OF NITROUS OXIDE REDUCTASE FROM PSEUDOMONAS NAUTICA, AT 2.4A RESOLUTION'''<br /> | '''CRYSTAL STRUCTURE OF NITROUS OXIDE REDUCTASE FROM PSEUDOMONAS NAUTICA, AT 2.4A RESOLUTION'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1QNI is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Marinobacter_hydrocarbonoclasticus Marinobacter hydrocarbonoclasticus] with CA, CL, CUA and CUZ as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <scene name='pdbsite=CUA:Cua Center (Electron Entry Gate)'>CUA</scene>, <scene name='pdbsite=CUB:Cua Center (Electron Entry Gate)'>CUB</scene>, <scene name='pdbsite=CUC:Cua Center (Electron Entry Gate)'>CUC</scene>, <scene name='pdbsite=CUD:Cua Center (Electron Entry Gate)'>CUD</scene>, <scene name='pdbsite=CUE:Cua Center (Electron Entry Gate)'>CUE</scene>, <scene name='pdbsite=CUF:Cua Center (Electron Entry Gate)'>CUF</scene>, <scene name='pdbsite=CUU:Cuz Center (Catalytic Site)'>CUU</scene>, <scene name='pdbsite=CUV:Cuz Center (Catalytic Site)'>CUV</scene>, <scene name='pdbsite=CUW:Cuz Center (Catalytic Site)'>CUW</scene>, <scene name='pdbsite=CUX:Cuz Center (Catalytic Site)'>CUX</scene>, <scene name='pdbsite=CUY:Cuz Center (Catalytic Site)'>CUY</scene> and <scene name='pdbsite=CUZ:Cuz Center (Catalytic Site)'>CUZ</scene>. Full crystallographic information is available from [http:// | + | 1QNI is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Marinobacter_hydrocarbonoclasticus Marinobacter hydrocarbonoclasticus] with <scene name='pdbligand=CA:'>CA</scene>, <scene name='pdbligand=CL:'>CL</scene>, <scene name='pdbligand=CUA:'>CUA</scene> and <scene name='pdbligand=CUZ:'>CUZ</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <scene name='pdbsite=CUA:Cua+Center+(Electron+Entry+Gate)'>CUA</scene>, <scene name='pdbsite=CUB:Cua+Center+(Electron+Entry+Gate)'>CUB</scene>, <scene name='pdbsite=CUC:Cua+Center+(Electron+Entry+Gate)'>CUC</scene>, <scene name='pdbsite=CUD:Cua+Center+(Electron+Entry+Gate)'>CUD</scene>, <scene name='pdbsite=CUE:Cua+Center+(Electron+Entry+Gate)'>CUE</scene>, <scene name='pdbsite=CUF:Cua+Center+(Electron+Entry+Gate)'>CUF</scene>, <scene name='pdbsite=CUU:Cuz+Center+(Catalytic+Site)'>CUU</scene>, <scene name='pdbsite=CUV:Cuz+Center+(Catalytic+Site)'>CUV</scene>, <scene name='pdbsite=CUW:Cuz+Center+(Catalytic+Site)'>CUW</scene>, <scene name='pdbsite=CUX:Cuz+Center+(Catalytic+Site)'>CUX</scene>, <scene name='pdbsite=CUY:Cuz+Center+(Catalytic+Site)'>CUY</scene> and <scene name='pdbsite=CUZ:Cuz+Center+(Catalytic+Site)'>CUZ</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QNI OCA]. |
==Reference== | ==Reference== | ||
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[[Category: mad]] | [[Category: mad]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 10:01:15 2008'' |
Revision as of 08:01, 3 February 2008
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CRYSTAL STRUCTURE OF NITROUS OXIDE REDUCTASE FROM PSEUDOMONAS NAUTICA, AT 2.4A RESOLUTION
Overview
Nitrous oxide (N20) is a greenhouse gas, the third most significant, contributor to global warming. As a key process for N20 elimination from, the biosphere, N20 reductases catalyze the two-electron reduction of N20, to N2. These 2 x 65 kDa copper enzymes are thought to contain a CuA, electron entry site, similar to that of cytochrome c oxidase, and a CuZ, catalytic center. The copper anomalous signal was used to solve the, crystal structure of N20 reductase from Pseudomonas nautica by, multiwavelength anomalous dispersion, to a resolution of 2.4 A. The, structure reveals that the CuZ center belongs to a new type of metal, cluster, in which four copper ions are liganded by seven histidine, residues. N20 binds to this center via a single copper ion. The remaining, copper ions might act as an electron reservoir, assuring a fast electron, transfer and avoiding the formation of dead-end products.
About this Structure
1QNI is a Single protein structure of sequence from Marinobacter hydrocarbonoclasticus with , , and as ligands. Known structural/functional Sites: , , , , , , , , , , and . Full crystallographic information is available from OCA.
Reference
A novel type of catalytic copper cluster in nitrous oxide reductase., Brown K, Tegoni M, Prudencio M, Pereira AS, Besson S, Moura JJ, Moura I, Cambillau C, Nat Struct Biol. 2000 Mar;7(3):191-5. PMID:10700275
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Categories: Marinobacter hydrocarbonoclasticus | Single protein | Brown, K. | Cambillau, C. | Tegoni, M. | CA | CL | CUA | CUZ | Crystal structure | Denitrification | Electron transfer | Mad
