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| Annotation rule MF_01630 |
General rule information
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| Accession | MF_01630 |
| Dates | 18-JAN-2006 (Created) 4-JUN-2021 (Last updated, Version 32) |
| Name | Nitrate_reduct_NapA |
| Scope | Bacteria |
| Templates | P33937 (NAPA_ECOLI); P81186 (NAPA_DESDA); P39185 (NAPA_CUPNH); Q53176 (NAPA_CERS4): [Recover all] |
| Triggered by |
Propagated annotation
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Identifier, protein and gene names
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| Identifier |
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case <OC:Proteobacteria> or (defined <Property:Membrane> and <Property:Membrane=2>)
| Protein name |
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else
| Protein name |
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end case
| Gene name |
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Comments
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case <OC:Proteobacteria> or (defined <Property:Membrane> and <Property:Membrane=2>)
| Function | Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. |
else
| Function | Catalytic subunit of the nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. |
end case
| Catalytic activity | RHEA:12909: 2 [Fe(II)cytochrome] + 2 H(+) + nitrate = 2 [Fe(III)cytochrome] + H2O + nitrite
EC 1.9.6.1 |
| Cofactor | [4Fe-4S] cluster Note: Binds 1 [4Fe-4S] cluster. |
| Mo-bis(molybdopterin guanine dinucleotide) Note: Binds 1 molybdenum-bis(molybdopterin guanine dinucleotide) (Mo-bis-MGD) cofactor per subunit. |
case <OC:Proteobacteria> or (defined <Property:Membrane> and <Property:Membrane=2>)
| Subunit | Component of the periplasmic nitrate reductase NapAB complex composed of NapA and NapB. |
| Subcellular location | Periplasm. |
else
| Subunit | Component of the nitrate reductase NapAB complex composed of NapA and NapB. |
| Subcellular location | Secreted. Note=Membrane-associated. |
end case
case <Feature:PS51318>
| Ptm | Predicted to be exported by the Tat system. The position of the signal peptide cleavage has not been experimentally proven. |
end case
| Similarity | Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily. |
Keywords
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4Fe-4S
Electron transport
Iron
Iron-sulfur
Metal-binding
Molybdenum
Nitrate assimilation
Oxidoreductase
Electron transport
Iron
Iron-sulfur
Metal-binding
Molybdenum
Nitrate assimilation
Oxidoreductase
case <OC:Proteobacteria> or (defined <Property:Membrane> and <Property:Membrane=2>)
end case
Gene Ontology
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GO:0009055; Molecular function: electron transfer activity.
GO:0005506; Molecular function: iron ion binding.
GO:0008940; Molecular function: nitrate reductase activity.
GO:0006777; Biological process: Mo-molybdopterin cofactor biosynthetic process.
GO:0042128; Biological process: nitrate assimilation.
GO:0005506; Molecular function: iron ion binding.
GO:0008940; Molecular function: nitrate reductase activity.
GO:0006777; Biological process: Mo-molybdopterin cofactor biosynthetic process.
GO:0042128; Biological process: nitrate assimilation.
case <OC:Proteobacteria> or (defined <Property:Membrane> and <Property:Membrane=2>)
GO:0042597; Cellular component: periplasmic space.
end case
Cross-references
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| PROSITE | PS51669; 4FE4S_MOW_BIS_MGD; 1; trigger=PRU01004; |
| PS00551; MOLYBDOPTERIN_PROK_1; 1; | |
| PS00490; MOLYBDOPTERIN_PROK_2; 1; | |
| PS00932; MOLYBDOPTERIN_PROK_3; 1; | |
| PS51318; TAT; 0-1; trigger=PRU00648; | |
| Pfam | PF04879; Molybdop_Fe4S4; 1; |
| PF00384; Molybdopterin; 1; | |
| PF01568; Molydop_binding; 1; | |
| PF10518; TAT_signal; 0-1; | |
| TIGRFAMs | TIGR01706; NAPA; 1; |
| TIGR01409; TAT_signal_seq; 0-1; |
Computed features
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case not <Feature:PS51318>
| General | Signal; -; 1; trigger=yes; |
end case
Features
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| From: NAPA_ECOLI (P33937) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| REGION (Optional) | 212 | 219 | Mo-bis(molybdopterin guanine dinucleotide) binding | W-G-[AS]-N-M-A-E-M | ||||||||
| REGION (Optional) | 243 | 247 | Mo-bis(molybdopterin guanine dinucleotide) binding | S-T-[YF]-x-H | ||||||||
| REGION (Optional) | 262 | 264 | Mo-bis(molybdopterin guanine dinucleotide) binding | [QG]-[ST]-D | ||||||||
| REGION (Optional) | 508 | 509 | Mo-bis(molybdopterin guanine dinucleotide) binding | S-[DE] | ||||||||
| REGION (Optional) | 718 | 727 | Mo-bis(molybdopterin guanine dinucleotide) binding | [ST]-[GM]-R-[VI]-[ILV]-[ED]-H-W-H-[TS] | ||||||||
| METAL | 46 | 46 | Iron-sulfur (4Fe-4S) | C | ||||||||
| METAL | 49 | 49 | Iron-sulfur (4Fe-4S) | C | ||||||||
| METAL | 53 | 53 | Iron-sulfur (4Fe-4S) | C | ||||||||
| METAL | 81 | 81 | Iron-sulfur (4Fe-4S) | C | ||||||||
| BINDING (Optional) | 83 | 83 | Mo-bis(molybdopterin guanine dinucleotide) | K | ||||||||
| BINDING (Optional) | 150 | 150 | Mo-bis(molybdopterin guanine dinucleotide) | Q | ||||||||
| BINDING (Optional) | 175 | 175 | Mo-bis(molybdopterin guanine dinucleotide) | N | ||||||||
| BINDING (Optional) | 179 | 179 | Mo-bis(molybdopterin guanine dinucleotide) | C | ||||||||
| BINDING (Optional) | 372 | 372 | Mo-bis(molybdopterin guanine dinucleotide); via amide nitrogen | M | ||||||||
| BINDING (Optional) | 376 | 376 | Mo-bis(molybdopterin guanine dinucleotide) | Q | ||||||||
| BINDING (Optional) | 482 | 482 | Mo-bis(molybdopterin guanine dinucleotide); via amide nitrogen | N | ||||||||
| BINDING (Optional) | 531 | 531 | Mo-bis(molybdopterin guanine dinucleotide) | K | ||||||||
| BINDING (Optional) | 558 | 558 | Mo-bis(molybdopterin guanine dinucleotide) | D | ||||||||
| BINDING (Optional) | 794 | 794 | Substrate; via amide nitrogen | [FW] | ||||||||
| BINDING (Optional) | 802 | 802 | Mo-bis(molybdopterin guanine dinucleotide) | N | ||||||||
| BINDING (Optional) | 819 | 819 | Mo-bis(molybdopterin guanine dinucleotide) | K | ||||||||
Additional information
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| Size range | 754-950 amino acids |
| Related rules | None |
| Fusion | None |