UniProtKB - P08509 (NIA2_TOBAC)
Protein
Nitrate reductase [NADH] 2
Gene
NIA2
Organism
Nicotiana tabacum (Common tobacco)
Status
Functioni
Nitrate reductase is a key enzyme involved in the first step of nitrate assimilation in plants, fungi and bacteria.
Catalytic activityi
- EC:1.7.1.1
Cofactori
Protein has several cofactor binding sites:- FADBy similarityNote: Binds 1 FAD per subunit.By similarity
- hemeBy similarityNote: Binds 1 heme group per subunit.By similarity
- Mo-molybdopterinBy similarityNote: Binds 1 Mo-molybdopterin (Mo-MPT) cofactor per subunit.By similarity
Activity regulationi
Regulated by the nitrogen source and controlled by the circadian rhythm.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 183 | MolybdenumBy similarity | 1 | |
Metal bindingi | 566 | Iron (heme axial ligand)PROSITE-ProRule annotation | 1 | |
Metal bindingi | 589 | Iron (heme axial ligand)PROSITE-ProRule annotation | 1 | |
Binding sitei | 721 | FAD; via carbonyl oxygenBy similarity | 1 | |
Binding sitei | 728 | FAD; via pi-pi stackingBy similarity | 1 | |
Binding sitei | 786 | FADBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 699 – 702 | FADBy similarity | 4 | |
Nucleotide bindingi | 716 – 720 | FADBy similarity | 5 | |
Nucleotide bindingi | 733 – 735 | FADBy similarity | 3 |
GO - Molecular functioni
- FAD binding Source: UniProtKB
- heme binding Source: InterPro
- molybdenum ion binding Source: UniProtKB
- molybdopterin cofactor binding Source: InterPro
- nitrate reductase (NADH) activity Source: GO_Central
- nitrate reductase (NADPH) activity Source: InterPro
GO - Biological processi
- nitrate assimilation Source: GO_Central
- nitric oxide biosynthetic process Source: GO_Central
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Nitrate assimilation |
Ligand | FAD, Flavoprotein, Heme, Iron, Metal-binding, Molybdenum, NAD |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:NIA2 |
Organismi | Nicotiana tabacum (Common tobacco) |
Taxonomic identifieri | 4097 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › asterids › lamiids › Solanales › Solanaceae › Nicotianoideae › Nicotianeae › Nicotiana |
Proteomesi |
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PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000166073 | 1 – 904 | Nitrate reductase [NADH] 2Add BLAST | 904 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 422 | InterchainSequence analysis |
Keywords - PTMi
Disulfide bondInteractioni
Subunit structurei
Homodimer.
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 531 – 606 | Cytochrome b5 heme-bindingPROSITE-ProRule annotationAdd BLAST | 76 | |
Domaini | 647 – 759 | FAD-binding FR-typePROSITE-ProRule annotationAdd BLAST | 113 |
Sequence similaritiesi
Belongs to the nitrate reductase family.Curated
Phylogenomic databases
OMAi | WYVVESA |
OrthoDBi | 166846at2759 |
Family and domain databases
Gene3Di | 3.10.120.10, 1 hit 3.40.50.80, 1 hit 3.90.420.10, 1 hit |
InterProi | View protein in InterPro IPR001834, CBR-like IPR008333, Cbr1-like_FAD-bd_dom IPR001199, Cyt_B5-like_heme/steroid-bd IPR036400, Cyt_B5-like_heme/steroid_sf IPR018506, Cyt_B5_heme-BS IPR017927, FAD-bd_FR_type IPR001709, Flavoprot_Pyr_Nucl_cyt_Rdtase IPR039261, FNR_nucleotide-bd IPR014756, Ig_E-set IPR005066, MoCF_OxRdtse_dimer IPR008335, Mopterin_OxRdtase_euk IPR012137, Nitr_rd_NADH IPR001433, OxRdtase_FAD/NAD-bd IPR000572, OxRdtase_Mopterin-bd_dom IPR036374, OxRdtase_Mopterin-bd_sf IPR022407, OxRdtase_Mopterin_BS IPR017938, Riboflavin_synthase-like_b-brl |
Pfami | View protein in Pfam PF00173, Cyt-b5, 1 hit PF00970, FAD_binding_6, 1 hit PF03404, Mo-co_dimer, 1 hit PF00175, NAD_binding_1, 1 hit PF00174, Oxidored_molyb, 1 hit |
PIRSFi | PIRSF000233, Nitr_rd_NADH, 1 hit |
PRINTSi | PR00406, CYTB5RDTASE PR00363, CYTOCHROMEB5 PR00407, EUMOPTERIN PR00371, FPNCR |
SMARTi | View protein in SMART SM01117, Cyt-b5, 1 hit |
SUPFAMi | SSF52343, SSF52343, 1 hit SSF55856, SSF55856, 1 hit SSF56524, SSF56524, 1 hit SSF63380, SSF63380, 1 hit SSF81296, SSF81296, 1 hit |
PROSITEi | View protein in PROSITE PS00191, CYTOCHROME_B5_1, 1 hit PS50255, CYTOCHROME_B5_2, 1 hit PS51384, FAD_FR, 1 hit PS00559, MOLYBDOPTERIN_EUK, 1 hit |
i Sequence
Sequence statusi: Complete.
P08509-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MAASVENRQF SHLEAGLSRS FKPRSDSPVR GCNFPSPNST NFQKKPNSTI
60 70 80 90 100
YLDYSSSEDD DDDDEKNEYL QMIKKGNSEL EPSVHDTRDE GTADNWIERN
110 120 130 140 150
FSMIRLTGKH PFNSEPPLNR LMHHGFITPV PLHYVRNHGP VPKGTWDDWT
160 170 180 190 200
VEVTGLVKRP MKFTMDQLVN EFPCRELPVT LVCAGNRRKE QNMVKQTIGF
210 220 230 240 250
NWGAAAVSTT IWRGVPLRAL LKRCGVFSKN KGALNVCFEG ADVLPGGGGS
260 270 280 290 300
KYGTSIKKEF AMDPARDIIV AYMQNGEKLA PDHGFPVRMI IPGFIGGRMV
310 320 330 340 350
KWIKRIIVTT QESDSYYHFK DNRVLPPHVD AELANTEAWW YKPEYIINEL
360 370 380 390 400
NINSVITTPC HEEILPINAW TTQRPYTLRG YSYSGGGKKV TRVEVTLDGG
410 420 430 440 450
ETWQVSTLDH PEKPTKYGKY WCWCFWSLEV EVLDLLSAKE IAVRAWDETL
460 470 480 490 500
NTQPEKLIWN VMGMMNNCWF RVKMNVCKPH KGEIGIVFEH PTQPGNQSGG
510 520 530 540 550
WMAKERHLEI SAEAPQTLKK SISTPFMNTA SKMYSMSEVR KHSSADSAWI
560 570 580 590 600
IVHGHIYDAT RFLKDHPGGT DSILINAGTD CTEEFDAIHS DKAKKLLEDF
610 620 630 640 650
RIGELITTGY TSDSPGNSVH GSSSFSSFLA PIKELVPAQR SVALIPREKI
660 670 680 690 700
PCKLIDKQSI SHDVRKFRFA LPSEDQVLGL PVGKHIFLCA VIDDKLCMRA
710 720 730 740 750
YTPTSTIDEV GYFELVVKIY FKGIHPKFPN GGQMSQYLDS MPLGSFLDVK
760 770 780 790 800
GPLGHIEYQG KGNFLVHGKQ KFAKKLAMIA GGTGITPVYQ VMQAILKDPE
810 820 830 840 850
DDTEMYVVYA NRTEDDILLK EELDSWAEKI PERVKVWYVV QDSIKEGWKY
860 870 880 890 900
SIGFITEAIL REHIPEPSHT TLALACGPPP MIQFAVNPNL EKMGYDIKDS
LLVF
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X14059 Genomic DNA Translation: CAA32217.1 X06134 mRNA Translation: CAA29497.1 |
PIRi | S04839, RDNTNS |
RefSeqi | XP_016462202.1, XM_016606716.1 |
Genome annotation databases
GeneIDi | 107785409 |
KEGGi | nta:107785409 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X14059 Genomic DNA Translation: CAA32217.1 X06134 mRNA Translation: CAA29497.1 |
PIRi | S04839, RDNTNS |
RefSeqi | XP_016462202.1, XM_016606716.1 |
3D structure databases
SMRi | P08509 |
ModBasei | Search... |
Genome annotation databases
GeneIDi | 107785409 |
KEGGi | nta:107785409 |
Phylogenomic databases
OMAi | WYVVESA |
OrthoDBi | 166846at2759 |
Family and domain databases
Gene3Di | 3.10.120.10, 1 hit 3.40.50.80, 1 hit 3.90.420.10, 1 hit |
InterProi | View protein in InterPro IPR001834, CBR-like IPR008333, Cbr1-like_FAD-bd_dom IPR001199, Cyt_B5-like_heme/steroid-bd IPR036400, Cyt_B5-like_heme/steroid_sf IPR018506, Cyt_B5_heme-BS IPR017927, FAD-bd_FR_type IPR001709, Flavoprot_Pyr_Nucl_cyt_Rdtase IPR039261, FNR_nucleotide-bd IPR014756, Ig_E-set IPR005066, MoCF_OxRdtse_dimer IPR008335, Mopterin_OxRdtase_euk IPR012137, Nitr_rd_NADH IPR001433, OxRdtase_FAD/NAD-bd IPR000572, OxRdtase_Mopterin-bd_dom IPR036374, OxRdtase_Mopterin-bd_sf IPR022407, OxRdtase_Mopterin_BS IPR017938, Riboflavin_synthase-like_b-brl |
Pfami | View protein in Pfam PF00173, Cyt-b5, 1 hit PF00970, FAD_binding_6, 1 hit PF03404, Mo-co_dimer, 1 hit PF00175, NAD_binding_1, 1 hit PF00174, Oxidored_molyb, 1 hit |
PIRSFi | PIRSF000233, Nitr_rd_NADH, 1 hit |
PRINTSi | PR00406, CYTB5RDTASE PR00363, CYTOCHROMEB5 PR00407, EUMOPTERIN PR00371, FPNCR |
SMARTi | View protein in SMART SM01117, Cyt-b5, 1 hit |
SUPFAMi | SSF52343, SSF52343, 1 hit SSF55856, SSF55856, 1 hit SSF56524, SSF56524, 1 hit SSF63380, SSF63380, 1 hit SSF81296, SSF81296, 1 hit |
PROSITEi | View protein in PROSITE PS00191, CYTOCHROME_B5_1, 1 hit PS50255, CYTOCHROME_B5_2, 1 hit PS51384, FAD_FR, 1 hit PS00559, MOLYBDOPTERIN_EUK, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | NIA2_TOBAC | |
Accessioni | P08509Primary (citable) accession number: P08509 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | August 1, 1988 |
Last sequence update: | October 1, 1989 | |
Last modified: | December 2, 2020 | |
This is version 128 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families