NIA_BEABA
ID NIA_BEABA Reviewed; 894 AA.
AC P43100;
DT 01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1995, sequence version 1.
DT 03-AUG-2022, entry version 111.
DE RecName: Full=Nitrate reductase [NADPH];
DE Short=NR;
DE EC=1.7.1.3;
GN Name=NIA;
OS Beauveria bassiana (White muscardine disease fungus) (Tritirachium
OS shiotae).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Hypocreales; Cordycipitaceae; Beauveria.
OX NCBI_TaxID=176275;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=BB147;
RA Maurer P.;
RL Submitted (FEB-1995) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Nitrate reductase is a key enzyme involved in the first step
CC of nitrate assimilation in plants, fungi and bacteria.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + NADP(+) + nitrite = H(+) + NADPH + nitrate;
CC Xref=Rhea:RHEA:19061, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16301, ChEBI:CHEBI:17632, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349; EC=1.7.1.3;
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC Note=Binds 1 FAD. {ECO:0000250};
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC Note=Binds 1 heme group. The heme group is called cytochrome b-557.
CC {ECO:0000250};
CC -!- COFACTOR:
CC Name=Mo-molybdopterin; Xref=ChEBI:CHEBI:71302; Evidence={ECO:0000250};
CC Note=Binds 1 Mo-molybdopterin (Mo-MPT) cofactor per subunit.
CC {ECO:0000250};
CC -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the nitrate reductase family. {ECO:0000305}.
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DR EMBL; X84950; CAA59336.1; -; Genomic_DNA.
DR PIR; S52857; S52857.
DR AlphaFoldDB; P43100; -.
DR SMR; P43100; -.
DR STRING; 176275.XP_008600163.1; -.
DR GO; GO:0071949; F:FAD binding; ISS:UniProtKB.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0030151; F:molybdenum ion binding; ISS:UniProtKB.
DR GO; GO:0043546; F:molybdopterin cofactor binding; IEA:InterPro.
DR GO; GO:0050464; F:nitrate reductase (NADPH) activity; IEA:UniProtKB-EC.
DR GO; GO:0042128; P:nitrate assimilation; IEA:UniProtKB-KW.
DR GO; GO:0006809; P:nitric oxide biosynthetic process; IEA:InterPro.
DR Gene3D; 3.10.120.10; -; 1.
DR Gene3D; 3.40.50.80; -; 1.
DR Gene3D; 3.90.420.10; -; 1.
DR InterPro; IPR001834; CBR-like.
DR InterPro; IPR008333; Cbr1-like_FAD-bd_dom.
DR InterPro; IPR001199; Cyt_B5-like_heme/steroid-bd.
DR InterPro; IPR036400; Cyt_B5-like_heme/steroid_sf.
DR InterPro; IPR018506; Cyt_B5_heme-BS.
DR InterPro; IPR017927; FAD-bd_FR_type.
DR InterPro; IPR001709; Flavoprot_Pyr_Nucl_cyt_Rdtase.
DR InterPro; IPR039261; FNR_nucleotide-bd.
DR InterPro; IPR014756; Ig_E-set.
DR InterPro; IPR005066; MoCF_OxRdtse_dimer.
DR InterPro; IPR008335; Mopterin_OxRdtase_euk.
DR InterPro; IPR012137; Nitr_rd_NADH.
DR InterPro; IPR001433; OxRdtase_FAD/NAD-bd.
DR InterPro; IPR000572; OxRdtase_Mopterin-bd_dom.
DR InterPro; IPR036374; OxRdtase_Mopterin-bd_sf.
DR InterPro; IPR022407; OxRdtase_Mopterin_BS.
DR InterPro; IPR017938; Riboflavin_synthase-like_b-brl.
DR PANTHER; PTHR19370; PTHR19370; 1.
DR Pfam; PF00173; Cyt-b5; 1.
DR Pfam; PF00970; FAD_binding_6; 1.
DR Pfam; PF03404; Mo-co_dimer; 1.
DR Pfam; PF00175; NAD_binding_1; 1.
DR Pfam; PF00174; Oxidored_molyb; 1.
DR PIRSF; PIRSF000233; Nitr_rd_NADH; 1.
DR PRINTS; PR00363; CYTOCHROMEB5.
DR PRINTS; PR00407; EUMOPTERIN.
DR PRINTS; PR00371; FPNCR.
DR SMART; SM01117; Cyt-b5; 1.
DR SUPFAM; SSF52343; SSF52343; 1.
DR SUPFAM; SSF55856; SSF55856; 1.
DR SUPFAM; SSF56524; SSF56524; 1.
DR SUPFAM; SSF63380; SSF63380; 1.
DR SUPFAM; SSF81296; SSF81296; 1.
DR PROSITE; PS00191; CYTOCHROME_B5_1; 1.
DR PROSITE; PS50255; CYTOCHROME_B5_2; 1.
DR PROSITE; PS51384; FAD_FR; 1.
DR PROSITE; PS00559; MOLYBDOPTERIN_EUK; 1.
PE 3: Inferred from homology;
KW Disulfide bond; FAD; Flavoprotein; Heme; Iron; Metal-binding; Molybdenum;
KW NADP; Nitrate assimilation; Oxidoreductase.
FT CHAIN 1..894
FT /note="Nitrate reductase [NADPH]"
FT /id="PRO_0000166041"
FT DOMAIN 535..610
FT /note="Cytochrome b5 heme-binding"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00279"
FT DOMAIN 638..749
FT /note="FAD-binding FR-type"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00716"
FT REGION 1..79
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 6..26
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 28..42
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 169
FT /ligand="Mo-molybdopterin"
FT /ligand_id="ChEBI:CHEBI:71302"
FT /ligand_part="Mo"
FT /ligand_part_id="ChEBI:CHEBI:28685"
FT /evidence="ECO:0000250|UniProtKB:P49050"
FT BINDING 570
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00279"
FT BINDING 593
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00279"
FT BINDING 692..695
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 709..713
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 723..725
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 773
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P17571"
FT BINDING 776
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT DISULFID 418
FT /note="Interchain"
FT /evidence="ECO:0000255"
SQ SEQUENCE 894 AA; 99934 MW; D0ED234BF1B1322B CRC64;
MAVKSQLGVT YTTKTFPPSP PRTVGNSHAG SDDERDEVDA TPTTPPVEKL GQLLKPYSLP
PTNTPTHVLP EDLKTPDHRV NRDPRLIRLT GVHPFNVEPP LTDLYDEGFL NSENLHYVRN
HGPVPHCPDD ESLNWTFTVD GLVEKPFTIA VRDLIQKYDQ FTYPVTLVCA GNRRKEQNVV
RKSKGFSWGA AGLSTALWTG VPIGALLRMA KPKRAAKYVC FEGADKLPNG YYGTSVKLNW
CMDENRGIMV AHKMNGQSLH PDHGKPVRII IPGQIGGRSV KWLKKITITS EPSDNWYHIY
DNRVLPTTIS PDASANLPDV WKDEKYAIYD LNANSAICYP RHDERLVLAT APDTYKVRGY
AYGGGGKRIT RLEVTLNKGK SWLLAGIHYP EDDYRRAPDG DLLYGGSTDM WWRETCFCWC
FWEIDIPVAD LSAADDIMIR AMDEGMMVQP RDMYWSVLGM MNNPWFRVVI HKEDGALRFE
HPTQPALMPG GWMERVKRRG GNLTNGFWGE KTAAEEEQVL AEPEKEICMT NPKVVRIISL
EELKAHEGEM EPWFVVNGHV YNGTPYLDNH PGGATSIINA AAQDATEEFM TIHSENAKAM
MPQYHIGTLN DAARKALEGS AEESPASDPT RAVFLQPKYW SKAILETKTD VSSDSKIFSF
RLDHAAQSIG LPTGQHLLVR LRDPATREAV IRAYTPLSET HAKGQLDILI KIYRDVPGQP
GGKMTQALDS IPLGHFVDIK GPVGKFEYLG KGHCTVSGTS RHVRRFVMIC AGSGVTPIFQ
VLRAVTSDAQ DGTECLVLDG NRCEKDILCR EELDAMVARA PARTTLLHKL SRPDASWCGL
RGRMDKEYLE EHIGGFRKSD GREMVLVCGP AALEETVRSV LVEMAWKPED MLFF