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1qni

From Proteopedia

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Crystal Structure of Nitrous Oxide Reductase from Pseudomonas nautica, at 2.4A Resolution

Structural highlights

1qni is a 6 chain structure with sequence from Marinobacter nauticus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.4Å
Ligands:	, , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q7SIA3_MARNT

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

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.

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^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Brown K, Tegoni M, Prudencio M, Pereira AS, Besson S, Moura JJ, Moura I, Cambillau C. A novel type of catalytic copper cluster in nitrous oxide reductase. Nat Struct Biol. 2000 Mar;7(3):191-5. PMID:10700275 doi:10.1038/73288

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1qni"

Categories: Large Structures | Marinobacter nauticus | Brown K | Cambillau C | Tegoni M

@@ Line 3: / Line 3: @@
 <StructureSection load='1qni' size='340' side='right'caption='[[1qni]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1qni]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_nautica Pseudomonas nautica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QNI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QNI FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1qni]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Marinobacter_nauticus Marinobacter nauticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QNI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QNI FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=CUA:DINUCLEAR+COPPER+ION'>CUA</scene>, <scene name='pdbligand=CUZ:(MU-4-SULFIDO)-TETRA-NUCLEAR+COPPER+ION'>CUZ</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=CUA:DINUCLEAR+COPPER+ION'>CUA</scene>, <scene name='pdbligand=CUZ:(MU-4-SULFIDO)-TETRA-NUCLEAR+COPPER+ION'>CUZ</scene></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qni FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qni OCA], [https://pdbe.org/1qni PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qni RCSB], [https://www.ebi.ac.uk/pdbsum/1qni PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qni ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/Q7SIA3_MARNT Q7SIA3_MARNT]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 31: / Line 34: @@
 </StructureSection>
 [[Category: Large Structures]]
-[[Category: Pseudomonas nautica]]
+[[Category: Marinobacter nauticus]]
-[[Category: Brown, K]]
+[[Category: Brown K]]
-[[Category: Cambillau, C]]
+[[Category: Cambillau C]]
-[[Category: Tegoni, M]]
+[[Category: Tegoni M]]
-[[Category: Denitrification]]
-[[Category: Electron transfer]]
-[[Category: Mad]]
-[[Category: Oxidoreductase]]

1qni

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Current revision

Crystal Structure of Nitrous Oxide Reductase from Pseudomonas nautica, at 2.4A Resolution

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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