UniProtKB - Q9Z0J5 (TRXR2_RAT)
Protein
Thioredoxin reductase 2, mitochondrial
Gene
Txnrd2
Organism
Rattus norvegicus (Rat)
Status
Functioni
Involved in the control of reactive oxygen species levels and the regulation of mitochondrial redox homeostasis (By similarity). Maintains mitochondrial thioredoxin in a reduced state. May play a role in redox-regulated cell signaling.By similarity1 Publication
Miscellaneous
The active site is a redox-active disulfide bond. The selenocysteine residue is also essential for catalytic activity (By similarity).By similarity
Catalytic activityi
- EC:1.8.1.91 Publication
Cofactori
FAD1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 499 | Proton acceptorBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 43 – 72 | FADBy similarityAdd BLAST | 30 |
GO - Molecular functioni
- flavin adenine dinucleotide binding Source: InterPro
- protein-containing complex binding Source: RGD
- protein homodimerization activity Source: UniProtKB
- thioredoxin-disulfide reductase activity Source: UniProtKB
GO - Biological processi
- cell redox homeostasis Source: UniProtKB
- heart development Source: RGD
- hemopoiesis Source: RGD
- protein-containing complex assembly Source: RGD
- response to drug Source: RGD
- response to hydrogen peroxide Source: RGD
- response to hyperoxia Source: RGD
- response to oxygen radical Source: UniProtKB
- response to selenium ion Source: RGD
Keywordsi
Molecular function | Oxidoreductase |
Ligand | FAD, Flavoprotein, NADP |
Enzyme and pathway databases
BRENDAi | 1.8.1.9, 5301 |
Reactomei | R-RNO-3299685, Detoxification of Reactive Oxygen Species |
Names & Taxonomyi
Protein namesi | Recommended name: Thioredoxin reductase 2, mitochondrial (EC:1.8.1.9)Alternative name(s): Thioredoxin reductase TR3 |
Gene namesi | Name:Txnrd2 Synonyms:Trxr2 |
Organismi | Rattus norvegicus (Rat)Imported |
Taxonomic identifieri | 10116 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
Proteomesi |
|
Organism-specific databases
RGDi | 61960, Txnrd2 |
Subcellular locationi
Mitochondrion
- Mitochondrion 1 Publication
Mitochondrion
- mitochondrion Source: UniProtKB
Other locations
- axon Source: RGD
- cytoplasm Source: RGD
- dendrite Source: RGD
- neuronal cell body Source: RGD
Keywords - Cellular componenti
MitochondrionPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transit peptidei | 1 – 36 | Mitochondrion1 PublicationAdd BLAST | 36 | |
ChainiPRO_0000030290 | 37 – 526 | Thioredoxin reductase 2, mitochondrialAdd BLAST | 490 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 81 | N6-succinyllysineBy similarity | 1 | |
Disulfide bondi | 88 ↔ 93 | Redox-activeBy similarity | ||
Modified residuei | 177 | N6-succinyllysineBy similarity | 1 | |
Modified residuei | 331 | N6-succinyllysineBy similarity | 1 | |
Cross-linki | 524 ↔ 525 | Cysteinyl-selenocysteine (Cys-Sec)By similarity |
Keywords - PTMi
Disulfide bondProteomic databases
jPOSTi | Q9Z0J5 |
PaxDbi | Q9Z0J5 |
PRIDEi | Q9Z0J5 |
PTM databases
iPTMneti | Q9Z0J5 |
PhosphoSitePlusi | Q9Z0J5 |
Expressioni
Tissue specificityi
Expressed in liver, kidney, adrenal gland and heart.1 Publication
Interactioni
Subunit structurei
Homodimer.
1 PublicationGO - Molecular functioni
- protein homodimerization activity Source: UniProtKB
Protein-protein interaction databases
STRINGi | 10116.ENSRNOP00000002593 |
Chemistry databases
BindingDBi | Q9Z0J5 |
Family & Domainsi
Sequence similaritiesi
Belongs to the class-I pyridine nucleotide-disulfide oxidoreductase family.Curated
Keywords - Domaini
Redox-active center, Transit peptidePhylogenomic databases
eggNOGi | KOG4716, Eukaryota |
InParanoidi | Q9Z0J5 |
OrthoDBi | 581771at2759 |
PhylomeDBi | Q9Z0J5 |
Family and domain databases
Gene3Di | 3.30.390.30, 1 hit 3.50.50.60, 2 hits |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR023753, FAD/NAD-binding_dom IPR016156, FAD/NAD-linked_Rdtase_dimer_sf IPR001100, Pyr_nuc-diS_OxRdtase IPR004099, Pyr_nucl-diS_OxRdtase_dimer IPR012999, Pyr_OxRdtase_I_AS IPR006338, Thioredoxin/glutathione_Rdtase |
Pfami | View protein in Pfam PF07992, Pyr_redox_2, 1 hit PF02852, Pyr_redox_dim, 1 hit |
PIRSFi | PIRSF000350, Mercury_reductase_MerA, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit SSF55424, SSF55424, 1 hit |
TIGRFAMsi | TIGR01438, TGR, 1 hit |
PROSITEi | View protein in PROSITE PS00076, PYRIDINE_REDOX_1, 1 hit |
s (2+)i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
This entry describes 2 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 2 described isoforms and 2 potential isoforms that are computationally mapped.Show allAlign All
Isoform 1 (identifier: Q9Z0J5-1) [UniParc]FASTAAdd to basket
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MAAIVAALRG SSGRFRPQTR VLTRGTRGAA GAASAAGGQQ NFDLLVIGGG
60 70 80 90 100
SGGLACAKEA AQLGRKVAVA DYVEPSPRGT KWGLGGTCVN VGCIPKKLMH
110 120 130 140 150
QAALLGGMIR DAQHYGWEVA QPVQHNWKAM AEAVQNHVKS LNWGHRVQLQ
160 170 180 190 200
DRKVKYFNIK ASFVNEHTVH GVDKAGKVTQ LSAKHIVIAT GGRPKYPTQV
210 220 230 240 250
KGALEHGITS DDIFWLKESP GKTLVVGASY VALECAGFLT GIGLDTTVMM
260 270 280 290 300
RSVPLRGFDQ QMASLVTEHM ESHGTRFLKG CVPSLIRKLP TNQLQVTWED
310 320 330 340 350
LASGKEDVGT FDTVLWAIGR VPETRNLNLE KAGVNTNPKN QKIIVDAQEA
360 370 380 390 400
TSVPHIYAIG DVAEGRPELT PTAIKAGKLL AQRLFGKSST LMNYSNVPTT
410 420 430 440 450
VFTPLEYGCV GLSEEEAVAL HGQEHIEVYH AYYKPLEFTV ADRDASQCYI
460 470 480 490 500
KMVCMREPPQ LVLGLHFLGP NAGEVTQGFA LGIQCGASYA QVMQTVGIHP
510 520
TCSEEVVKLH ISKRSGLDPT VTGCUG
Computationally mapped potential isoform sequencesi
There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketF1M6X5 | F1M6X5_RAT | Thioredoxin-disulfide reductase | Txnrd2 | 525 | Annotation score: | ||
A0A0G2K6E2 | A0A0G2K6E2_RAT | Thioredoxin-disulfide reductase | Txnrd2 rCG_36525 | 524 | Annotation score: |
Mass spectrometryi
Molecular mass is 53037±2 Da. Determined by ESI. The measured range is 37-526.1 Publication
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_008307 | 1 – 38 | MAAIV…SAAGG → MEG in isoform 2. CuratedAdd BLAST | 38 |
Non-standard residue
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Non-standard residuei | 525 | Selenocysteine1 Publication | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF072865 mRNA Translation: AAD13801.1 BC085734 mRNA Translation: AAH85734.1 |
RefSeqi | NP_072106.1, NM_022584.2 [Q9Z0J5-1] |
Genome annotation databases
GeneIDi | 50551 |
KEGGi | rno:50551 |
Keywords - Coding sequence diversityi
Alternative splicing, SelenocysteineSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF072865 mRNA Translation: AAD13801.1 BC085734 mRNA Translation: AAH85734.1 |
RefSeqi | NP_072106.1, NM_022584.2 [Q9Z0J5-1] |
3D structure databases
SMRi | Q9Z0J5 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 10116.ENSRNOP00000002593 |
Chemistry databases
BindingDBi | Q9Z0J5 |
ChEMBLi | CHEMBL5086 |
PTM databases
iPTMneti | Q9Z0J5 |
PhosphoSitePlusi | Q9Z0J5 |
Proteomic databases
jPOSTi | Q9Z0J5 |
PaxDbi | Q9Z0J5 |
PRIDEi | Q9Z0J5 |
Genome annotation databases
GeneIDi | 50551 |
KEGGi | rno:50551 |
Organism-specific databases
CTDi | 10587 |
RGDi | 61960, Txnrd2 |
Phylogenomic databases
eggNOGi | KOG4716, Eukaryota |
InParanoidi | Q9Z0J5 |
OrthoDBi | 581771at2759 |
PhylomeDBi | Q9Z0J5 |
Enzyme and pathway databases
BRENDAi | 1.8.1.9, 5301 |
Reactomei | R-RNO-3299685, Detoxification of Reactive Oxygen Species |
Miscellaneous databases
PROi | PR:Q9Z0J5 |
Family and domain databases
Gene3Di | 3.30.390.30, 1 hit 3.50.50.60, 2 hits |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR023753, FAD/NAD-binding_dom IPR016156, FAD/NAD-linked_Rdtase_dimer_sf IPR001100, Pyr_nuc-diS_OxRdtase IPR004099, Pyr_nucl-diS_OxRdtase_dimer IPR012999, Pyr_OxRdtase_I_AS IPR006338, Thioredoxin/glutathione_Rdtase |
Pfami | View protein in Pfam PF07992, Pyr_redox_2, 1 hit PF02852, Pyr_redox_dim, 1 hit |
PIRSFi | PIRSF000350, Mercury_reductase_MerA, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit SSF55424, SSF55424, 1 hit |
TIGRFAMsi | TIGR01438, TGR, 1 hit |
PROSITEi | View protein in PROSITE PS00076, PYRIDINE_REDOX_1, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | TRXR2_RAT | |
Accessioni | Q9Z0J5Primary (citable) accession number: Q9Z0J5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 19, 2003 |
Last sequence update: | February 26, 2008 | |
Last modified: | December 2, 2020 | |
This is version 158 of the entry and version 3 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencing, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families