Reviewed,
UniProtKB/Swiss-Prot Q01710 (NOSZ2_PSEAE)
Last modified
November 25, 2008.
Version 65.
History...
Clusters with 100%,
90%,
50% identity |
Documents (2) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Nitrous-oxide reductase EC=1.7.99.6 Alternative name(s): N(2)OR N2O reductase | ||
| Gene names |
| ||
| Organism | Pseudomonas aeruginosa | ||
| Taxonomic identifier | 287 [NCBI] | ||
| Taxonomic lineage | Bacteria › Proteobacteria › Gammaproteobacteria › Pseudomonadales › Pseudomonadaceae › Pseudomonas |
Protein attributes
| Sequence length | 634 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Inferred from homology. |
General annotation (Comments)
| Function | Nitrous-oxide reductase is part of a bacterial respiratory system which is activated under anaerobic conditions in the presence of nitrate or nitrous oxide. |
| Catalytic activity | N(2) + H(2)O + acceptor = N(2)O + reduced acceptor. |
| Cofactor | Binds 2 calcium ions per subunit By similarity. Binds 6 copper ions per subunit. Each subunit contains 2 copper centers; Cu(A) (binuclear) and Cu(Z) (tetranuclear). Cu(Z) is thought to be the site of nitrous oxide reduction By similarity. |
| Pathway | Nitrogen metabolism; nitrate reduction (denitrification); dinitrogen from nitrate: step 4/4. |
| Subunit structure | Homodimer By similarity. |
| Subcellular location | |
| Post-translational modification | Predicted to be exported by the Tat system. The position of the signal peptide cleavage has not been experimentally proven. |
| Sequence similarities | Belongs to the nosZ family. In the C-terminal section; belongs to the cytochrome c oxidase subunit 2 family. |
Ontologies
Keywords | |
|---|---|
| Cellular component | Periplasm |
| Domain | Signal |
| Ligand | Calcium Copper Metal-binding |
| Molecular function | Oxidoreductase |
Gene Ontology (GO) | |
| Biological process | oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW |
| Cellular component | membrane Inferred from electronic annotation. Source: InterPro periplasmic spaceInferred from electronic annotation. Source: HAMAP |
| Molecular function | calcium ion binding Inferred from electronic annotation. Source: HAMAP copper ion bindingInferred from electronic annotation. Source: HAMAP cytochrome-c oxidase activityInferred from electronic annotation. Source: InterPro nitrous-oxide reductase activityInferred from electronic annotation. Source: HAMAP |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 49 | 49 | Tat-type signal Potential | ||||||
| Chain | 50 – 634 | 585 | Nitrous-oxide reductase | PRO_0000019829 | |||||
Regions | |||||||||
| Region | 538 – 634 | 97 | COX2-like | ||||||
Sites | |||||||||
| Metal binding | 125 | 1 | Copper Z2 By similarity | ||||||
| Metal binding | 126 | 1 | Copper Z3 By similarity | ||||||
| Metal binding | 174 | 1 | Copper Z2 By similarity | ||||||
| Metal binding | 252 | 1 | Calcium 2; via carbonyl oxygen By similarity | ||||||
| Metal binding | 255 | 1 | Calcium 2 By similarity | ||||||
| Metal binding | 263 | 1 | Calcium 2; via carbonyl oxygen By similarity | ||||||
| Metal binding | 269 | 1 | Calcium 2 By similarity | ||||||
| Metal binding | 320 | 1 | Calcium 2 By similarity | ||||||
| Metal binding | 322 | 1 | Copper Z1 By similarity | ||||||
| Metal binding | 378 | 1 | Copper Z1 By similarity | ||||||
| Metal binding | 429 | 1 | Copper Z3 By similarity | ||||||
| Metal binding | 450 | 1 | Calcium 1; via carbonyl oxygen By similarity | ||||||
| Metal binding | 465 | 1 | Calcium 1 By similarity | ||||||
| Metal binding | 490 | 1 | Copper Z4 By similarity | ||||||
| Metal binding | 579 | 1 | Copper A1 By similarity | ||||||
| Metal binding | 614 | 1 | Copper A1 By similarity | ||||||
| Metal binding | 614 | 1 | Copper A2 By similarity | ||||||
| Metal binding | 616 | 1 | Copper A2; via carbonyl oxygen By similarity | ||||||
| Metal binding | 618 | 1 | Copper A1 By similarity | ||||||
| Metal binding | 618 | 1 | Copper A2 By similarity | ||||||
| Metal binding | 622 | 1 | Copper A2 By similarity | ||||||
| Metal binding | 625 | 1 | Copper A1 By similarity | ||||||
Sequences
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References
| [1] | "Derived amino acid sequences of the nosZ gene (respiratory N2O reductase) from Alcaligenes eutrophus, Pseudomonas aeruginosa and Pseudomonas stutzeri reveal potential copper-binding residues. Implications for the CuA site of N2O reductase and cytochrome-c oxidase." Zumft W.G., Dreusch A., Loechelt S., Cuypers H., Friedrich B., Schneider B. Eur. J. Biochem. 208:31-40(1992) [PubMed: 1324835] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: ATCC 10145 / DSM 50071 / JCM 5962 / LMG 1242 / NCIMB 8295. |
Cross-references
Sequence databases | |
|---|---|
| X65277 Genomic DNA. Translation: CAA46381.1. | |
3D structure databases | |
| HSSP | HSSP built from PDB template 1FWX based on UniProtKB Q51705. |
| ModBase | Search... |
Family and domain databases | |
| HAMAP | MF_00716. [Tree] |
| InterPro | IPR001505. Copper_CuA. IPR002429. COX2_C. IPR008972. Cupredoxin. IPR006311. Tat. IPR015943. WD40/YVTN_repeat-like. [Graphical view] |
| Gene3D | G3DSA:2.60.40.420. Cupredoxin. 1 hit. G3DSA:2.130.10.10. WD40/YVTN_repeat-like. 1 hit. |
| Pfam | PF00116. COX2. 1 hit. [Graphical view] |
| TIGRFAMs | TIGR01409. TAT_signal_seq. 1 hit. |
| PROSITE | PS00078. COX2. 1 hit. PS50857. COX2_CUA. 1 hit. PS51318. TAT. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | NOSZ2_PSEAE | ||||||||
| Accession | Primary (citable) accession number: Q01710 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes) | ||||||||
Relevant documents
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with


