NAPA_NAUPA
ID NAPA_NAUPA Reviewed; 937 AA.
AC B9L8L4;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=Periplasmic nitrate reductase {ECO:0000255|HAMAP-Rule:MF_01630};
DE EC=1.9.6.1 {ECO:0000255|HAMAP-Rule:MF_01630};
DE Flags: Precursor;
GN Name=napA {ECO:0000255|HAMAP-Rule:MF_01630}; OrderedLocusNames=NAMH_0556;
OS Nautilia profundicola (strain ATCC BAA-1463 / DSM 18972 / AmH).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Nautiliales; Nautiliaceae;
OC Nautilia.
OX NCBI_TaxID=598659;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1463 / DSM 18972 / AmH;
RX PubMed=19197347; DOI=10.1371/journal.pgen.1000362;
RA Campbell B.J., Smith J.L., Hanson T.E., Klotz M.G., Stein L.Y., Lee C.K.,
RA Wu D., Robinson J.M., Khouri H.M., Eisen J.A., Cary S.C.;
RT "Adaptations to submarine hydrothermal environments exemplified by the
RT genome of Nautilia profundicola.";
RL PLoS Genet. 5:E1000362-E1000362(2009).
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. {ECO:0000255|HAMAP-Rule:MF_01630}.
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 Evidence={ECO:0000255|HAMAP-Rule:MF_01630};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01630};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000255|HAMAP-Rule:MF_01630};
CC -!- COFACTOR:
CC Name=Mo-bis(molybdopterin guanine dinucleotide);
CC Xref=ChEBI:CHEBI:60539; Evidence={ECO:0000255|HAMAP-Rule:MF_01630};
CC Note=Binds 1 molybdenum-bis(molybdopterin guanine dinucleotide) (Mo-
CC bis-MGD) cofactor per subunit. {ECO:0000255|HAMAP-Rule:MF_01630};
CC -!- SUBUNIT: Component of the periplasmic nitrate reductase NapAB complex
CC composed of NapA and NapB. {ECO:0000255|HAMAP-Rule:MF_01630}.
CC -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000255|HAMAP-Rule:MF_01630}.
CC -!- PTM: Predicted to be exported by the Tat system. The position of the
CC signal peptide cleavage has not been experimentally proven.
CC {ECO:0000255|HAMAP-Rule:MF_01630}.
CC -!- SIMILARITY: Belongs to the prokaryotic molybdopterin-containing
CC oxidoreductase family. NasA/NapA/NarB subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_01630}.
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DR EMBL; CP001279; ACM93598.1; -; Genomic_DNA.
DR AlphaFoldDB; B9L8L4; -.
DR SMR; B9L8L4; -.
DR STRING; 598659.NAMH_0556; -.
DR EnsemblBacteria; ACM93598; ACM93598; NAMH_0556.
DR KEGG; nam:NAMH_0556; -.
DR eggNOG; COG0243; Bacteria.
DR HOGENOM; CLU_000422_13_4_7; -.
DR OMA; KIVSFWT; -.
DR Proteomes; UP000000448; Chromosome.
DR GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030151; F:molybdenum ion binding; IEA:InterPro.
DR GO; GO:0043546; F:molybdopterin cofactor binding; IEA:InterPro.
DR GO; GO:0050140; F:nitrate reductase (cytochrome) activity; IEA:UniProtKB-EC.
DR GO; GO:0008940; F:nitrate reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0042128; P:nitrate assimilation; IEA:UniProtKB-UniRule.
DR CDD; cd02791; MopB_CT_Nitrate-R-NapA-like; 1.
DR HAMAP; MF_01630; Nitrate_reduct_NapA; 1.
DR InterPro; IPR009010; Asp_de-COase-like_dom_sf.
DR InterPro; IPR041957; CT_Nitrate-R-NapA-like.
DR InterPro; IPR006657; MoPterin_dinucl-bd_dom.
DR InterPro; IPR006656; Mopterin_OxRdtase.
DR InterPro; IPR006963; Mopterin_OxRdtase_4Fe-4S_dom.
DR InterPro; IPR027467; MopterinOxRdtase_cofactor_BS.
DR InterPro; IPR010051; Periplasm_NO3_reductase_lsu.
DR InterPro; IPR006311; TAT_signal.
DR InterPro; IPR019546; TAT_signal_bac_arc.
DR Pfam; PF04879; Molybdop_Fe4S4; 1.
DR Pfam; PF00384; Molybdopterin; 1.
DR Pfam; PF01568; Molydop_binding; 1.
DR Pfam; PF10518; TAT_signal; 1.
DR SMART; SM00926; Molybdop_Fe4S4; 1.
DR SUPFAM; SSF50692; SSF50692; 1.
DR TIGRFAMs; TIGR01706; NAPA; 1.
DR TIGRFAMs; TIGR01409; TAT_signal_seq; 1.
DR PROSITE; PS51669; 4FE4S_MOW_BIS_MGD; 1.
DR PROSITE; PS00551; MOLYBDOPTERIN_PROK_1; 1.
DR PROSITE; PS51318; TAT; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; Electron transport; Iron; Iron-sulfur; Metal-binding; Molybdenum;
KW Nitrate assimilation; Oxidoreductase; Periplasm; Reference proteome;
KW Signal; Transport.
FT SIGNAL 1..31
FT /note="Tat-type signal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT CHAIN 32..937
FT /note="Periplasmic nitrate reductase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT /id="PRO_1000186367"
FT DOMAIN 40..96
FT /note="4Fe-4S Mo/W bis-MGD-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 47
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 50
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 54
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 82
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 84
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 152
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 177
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 181
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 214..221
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 422
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 426
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 532
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 580
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 607
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 827..836
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 903
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 911
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
FT BINDING 928
FT /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT /ligand_id="ChEBI:CHEBI:60539"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01630"
SQ SEQUENCE 937 AA; 106622 MW; B9177C838CC34AF6 CRC64;
MSMNRREFLK TTAAAAAASA VGISIPSEAK AAAENTQAGW QWDKAVCRFC GTGCGIMVAV
KDDKIVAVKG DPESPVNRGI NCIKGYFNAK IMYGADRLTQ PLLRMNDKGE FDKNGKFRPV
SWKRAFDEME KQFKKYYNEL GPTGVAVFGS GQYTIQEGYA AVKLVKAGWR SNNIDPNARH
CMASAVVGFY QTFGIDEPAG CYDDIEITDT VFVWGANMAE MHPILWSRVS DAKLNNPDKY
FIVNLSTYRN RCSNLADMEI IFRPNADLAI MNYLGREILK RNAVNWDFVK KHTIFATGHA
DIGYGMRNPN SPHVTDKERD TVAKQVAKVV TEEEAVALSP IGKWKAGDEM QMTHTAGKKP
FWHWQISFDD FKKAVEPYTL DYVAKVAKGD PDESLDSFKR KLQKLADLYC DPNRKALSFW
TMGFNQHVRG SWINELVYMV HLLLGKQSQP GSGAFSLTGQ PSACGTAREV GTFAHRLPAD
MLVGNPKHRK ITEKMWKIPE GTLNPKVGSH FLKIMRDIED GKIKWAWVHV NNPWQNTANA
NHWIKAARTM DNFIVVNEAY PGVSARVADL ILPVSMIYEK WGAYGNAERR TQHWRQQVTP
PGEAMPDLWT IMEFSKRFKL KEVWKAHPQA KLPSVLDKAQ AMGYDPEMTL FDVLFNRPEY
RKNFPWPDPI AKNPQTGKLH ANTEAGGDGR TIIGADGKEW KGYGFFVHKA LWEEYRKFGL
GHAHDLADFD TYHKVRGLRW PVVNGKETKW RFNAEYDPYA RKYAKPGEKF AFYGPLLKAL
KRGDLKGPKT KQKYSLKNKA KIFWRPFMVH PEDPKYDTKG YNFWLCTGRV LEHWHSGTMT
MRVPELYRAM PEALCYMNPK DAKELGLNRF DLVVVESRRG KVKARVETRG RNKPPRGLVY
VPWFDEKVLI NKVCLDATCP LSKETDYKKA AVKVYKA
