AC MF_01630; DC Protein; auto TR HAMAP; MF_01630; -; 1; level=0 XX Names: Nitrate_reduct_NapA XX ID NAPA case or (defined and ) DE RecName: Full=Periplasmic nitrate reductase; DE EC=1.9.6.1; DE Flags: Precursor; else DE RecName: Full=Nitrate reductase; DE EC=1.9.6.1; DE Flags: Precursor; end case GN Name=napA; XX case or (defined and ) CC -!- FUNCTION: Catalytic subunit of the periplasmic nitrate reductase CC complex NapAB. Receives electrons from NapB and catalyzes the reduction CC of nitrate to nitrite. else CC -!- FUNCTION: Catalytic subunit of the nitrate reductase complex NapAB. CC Receives electrons from NapB and catalyzes the reduction of nitrate to CC nitrite. end case CC -!- CATALYTIC ACTIVITY: CC Reaction=2 Fe(II)-[cytochrome] + 2 H(+) + nitrate = 2 Fe(III)- CC [cytochrome] + H2O + nitrite; Xref=Rhea:RHEA:12909, Rhea:RHEA- CC COMP:11777, Rhea:RHEA-COMP:11778, ChEBI:CHEBI:15377, CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16301, ChEBI:CHEBI:17632, CC ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=1.9.6.1; CC -!- COFACTOR: CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883; CC Note=Binds 1 [4Fe-4S] cluster.; CC -!- COFACTOR: CC Name=Mo-bis(molybdopterin guanine dinucleotide); CC Xref=ChEBI:CHEBI:60539; CC Note=Binds 1 molybdenum-bis(molybdopterin guanine dinucleotide) (Mo- CC bis-MGD) cofactor per subunit.; case or (defined and ) CC -!- SUBUNIT: Component of the periplasmic nitrate reductase NapAB complex CC composed of NapA and NapB. CC -!- SUBCELLULAR LOCATION: Periplasm. else CC -!- SUBUNIT: Component of the nitrate reductase NapAB complex composed of CC NapA and NapB. CC -!- SUBCELLULAR LOCATION: Secreted. Note=Membrane-associated. end case case CC -!- PTM: Predicted to be exported by the Tat system. The position of the CC signal peptide cleavage has not been experimentally proven. end case CC -!- SIMILARITY: Belongs to the prokaryotic molybdopterin-containing CC oxidoreductase family. NasA/NapA/NarB subfamily. XX DR PROSITE; PS51669; 4FE4S_MOW_BIS_MGD; 1; trigger=yes DR PROSITE; PS00551; MOLYBDOPTERIN_PROK_1; 1; trigger=no DR PROSITE; PS00490; MOLYBDOPTERIN_PROK_2; 1; trigger=no DR PROSITE; PS00932; MOLYBDOPTERIN_PROK_3; 1; trigger=no DR PROSITE; PS51318; TAT; 0-1; trigger=yes DR Pfam; PF04879; Molybdop_Fe4S4; 1; trigger=no DR Pfam; PF00384; Molybdopterin; 1; trigger=no DR Pfam; PF01568; Molydop_binding; 1; trigger=no DR Pfam; PF10518; TAT_signal; 0-1; trigger=no DR NCBIfam; TIGR01706; NAPA; 1; trigger=no DR NCBIfam; TIGR01409; TAT_signal_seq; 0-1; trigger=no case not DR General; Signal; -; 1; trigger=yes end case XX KW 4Fe-4S KW Electron transport KW Iron KW Iron-sulfur KW Metal-binding KW Molybdenum KW Nitrate assimilation KW Oxidoreductase case or (defined and ) KW Periplasm end case KW Signal KW Transport XX GO GO:0009055; F:electron transfer activity GO GO:0005506; F:iron ion binding GO GO:0008940; F:nitrate reductase activity GO GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process GO GO:0042128; P:nitrate assimilation case or (defined and ) GO GO:0042597; C:periplasmic space end case XX FT From: NAPA_ECOLI (P33937) FT BINDING 212..219 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: W-G-[AS]-N-M-A-E-M FT BINDING 243..247 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: S-T-[YF]-x-H FT BINDING 262..264 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: [QG]-[ST]-D FT BINDING 508..509 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: S-[DE] FT BINDING 718..727 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: [ST]-[GM]-R-[VI]-[ILV]-[ED]-H-W-H-[TS] FT BINDING 46 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT Condition: C FT BINDING 49 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT Condition: C FT BINDING 53 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT Condition: C FT BINDING 81 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT Condition: C FT BINDING 83 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: K FT BINDING 150 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: Q FT BINDING 175 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: N FT BINDING 179 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: C FT BINDING 372 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: M FT BINDING 376 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: Q FT BINDING 482 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: N FT BINDING 531 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: K FT BINDING 558 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: D FT BINDING 794 FT /ligand="substrate" FT Optional; Condition: [FW] FT BINDING 802 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: N FT BINDING 819 FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)" FT /ligand_id="ChEBI:CHEBI:60539" FT Optional; Condition: K XX Size: 754-950; Related: None; Template: P33937; P81186; P39185; Q53176; Scope: Bacteria Fusion: Nter: None Cter: None Duplicate: in PHOPR Plasmid: in RALEU, RHIME, CERS4 Comments: None XX # Revision 1.38 2023/06/01 //