NIA3_MAIZE
ID NIA3_MAIZE Reviewed; 889 AA.
AC P49102;
DT 01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 1.
DT 03-AUG-2022, entry version 121.
DE RecName: Full=Nitrate reductase [NADH] 3;
DE Short=NR;
DE EC=1.7.1.1;
OS Zea mays (Maize).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX NCBI_TaxID=4577;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=cv. B73; TISSUE=Seedling;
RA Campbell W.H., Redinbaugh M.G., Ingemarsson B., Doughtery E.S.,
RA Campbell E.R.;
RL Submitted (JAN-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 + NAD(+) + nitrite = H(+) + NADH + nitrate;
CC Xref=Rhea:RHEA:17913, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16301, ChEBI:CHEBI:17632, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945; EC=1.7.1.1;
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC Note=Binds 1 FAD per subunit. {ECO:0000250};
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC Note=Binds 1 heme group per subunit. {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; U20450; AAA62316.1; -; Genomic_DNA.
DR PIR; T02240; T02240.
DR AlphaFoldDB; P49102; -.
DR SMR; P49102; -.
DR PRIDE; P49102; -.
DR MaizeGDB; 30041; -.
DR Proteomes; UP000007305; Unplaced.
DR ExpressionAtlas; P49102; baseline and differential.
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:0009703; F:nitrate reductase (NADH) activity; IBA:GO_Central.
DR GO; GO:0050464; F:nitrate reductase (NADPH) activity; IEA:InterPro.
DR GO; GO:0042128; P:nitrate assimilation; IBA:GO_Central.
DR GO; GO:0006809; P:nitric oxide biosynthetic process; IBA:GO_Central.
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 NAD; Nitrate assimilation; Oxidoreductase; Reference proteome.
FT CHAIN 1..889
FT /note="Nitrate reductase [NADH] 3"
FT /id="PRO_0000166064"
FT DOMAIN 520..595
FT /note="Cytochrome b5 heme-binding"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00279"
FT DOMAIN 630..742
FT /note="FAD-binding FR-type"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00716"
FT REGION 1..20
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 52..73
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1..16
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 52..71
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 181
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 555
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 578
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 682..685
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 699..703
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 704
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P17571"
FT BINDING 711
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 716..718
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT BINDING 766
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P17571"
FT BINDING 769
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:A0A286R227"
FT DISULFID 404
FT /note="Interchain"
FT /evidence="ECO:0000255"
SQ SEQUENCE 889 AA; 98811 MW; 3614A8BB44B822F5 CRC64;
MSTCVEQPTH SASLDPTAAQ RLPYPDLPVD ILRRSSVRGS GFVAAALVSS ARKADDDARH
DDDDPSGDRH ETYGSHYLAN LGVEQSVRDE GTVDAWVESS QSLIRLTGKH SLNGELPRLM
RHGFITPVPR HYVRNHGPVP RGDWATWTVE VTGLVRRPRA LTMDELARDF PALELPVTLV
CAGNRRKEQN MVRQTLGFNW GPGAVSTSVW RGARLSDVLR RCGSMSRKGG ALFVCFEGAE
DLPGGGGTKY GTSITREVAL DPTMDVMLAY QQNGGPLLPD HGFPVRLIVP GCTAGRMVKW
LKRIVVAPAE SDNYYHYRDN RFLPSHVDAK LADAEGWWYK PEYVINEMNT NSVITTPAHN
EFLPINAITT QRIYTMKGFA YSGGGKKVTR VEVTLDGGEN WLLCELDHPE KPTKYGRYWC
WCFWSIDVEL IDLLACKEIA VRAWDQSLNT QPEFLTWNLM GMMTNCWFRV KVNVCRPRHG
EKAGLAFEHP VRTNQPGGWM AQQKHLETAE RTSAATSTTN QQFTMSEVRK HASQDSAWIV
VHGHVYDCTA FLKDHPGGAD SILINAGTDC TEEFDAIHSD KAKELLDTYR IGDLVTTGGA
EQRSPLELAP SPPIRHEGPA APVIALSNPR EKVPCQLVAR TVLSRDVRLF RFALPSSGQV
LGLPVGKHIF VCASIDGKLC MRAYTPTSSV DEVGHFDLLV KVYFRNENTK FPDGGRMTQY
LDSLPVGAHV DVKGPLGHVE YVGRGGFVID GKPRKAGRLA MVAGGSGITP IYQVIQAVLR
DQPEDKTEMH LVYANRTEDD ILLRAELDRW AAEYPERLKV WYVVSQVKRL DEWKYSVGIV
TEAVLRDDVP EARDGTLALL CGPPSMIQSP ILPNLEKMKH QLDDSVVSF
