UniProtKB - Q17172 (TDX2_BRUMA)
Protein
Peroxiredoxin 2
Gene
tsa-2
Organism
Brugia malayi (Filarial nematode worm)
Status
Functioni
Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides and as sensor of hydrogen peroxide-mediated signaling events.By similarity
Miscellaneous
The active site is a conserved redox-active cysteine residue, the peroxidatic cysteine (C(P)), which makes the nucleophilic attack on the peroxide substrate. The peroxide oxidizes the C(P)-SH to cysteine sulfenic acid (C(P)-SOH), which then reacts with another cysteine residue, the resolving cysteine (C(R)), to form a disulfide bridge. The disulfide is subsequently reduced by an appropriate electron donor to complete the catalytic cycle. In this typical 2-Cys peroxiredoxin, C(R) is provided by the other dimeric subunit to form an intersubunit disulfide. The disulfide is subsequently reduced by thioredoxin.By similarity
Catalytic activityi
- EC:1.11.1.24By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 53 | Cysteine sulfenic acid (-SOH) intermediateBy similarity | 1 |
GO - Molecular functioni
- peroxidase activity Source: UniProtKB-KW
- peroxiredoxin activity Source: InterPro
Keywordsi
Molecular function | Antioxidant, Oxidoreductase, Peroxidase |
Protein family/group databases
PeroxiBasei | 4489, Bmal2CysPrx02 |
Names & Taxonomyi
Protein namesi | Recommended name: Peroxiredoxin 2 (EC:1.11.1.24By similarity)Alternative name(s): Thiol-specific antioxidant protein 2 Thioredoxin peroxidase 2 Thioredoxin-dependent peroxide reductase 2 Thioredoxin-dependent peroxiredoxin 2Curated |
Gene namesi | Name:tsa-2 Synonyms:tsa2 |
Organismi | Brugia malayi (Filarial nematode worm) |
Taxonomic identifieri | 6279 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Nematoda › Chromadorea › Rhabditida › Spirurina › Spiruromorpha › Filarioidea › Onchocercidae › Brugia |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000135090 | 1 – 199 | Peroxiredoxin 2Add BLAST | 199 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 53 | Interchain (with C-174); in linked formBy similarity | ||
Disulfide bondi | 174 | Interchain (with C-53); in linked formBy similarity |
Keywords - PTMi
Disulfide bondInteractioni
Subunit structurei
Homodimer; disulfide-linked, upon oxidation.
By similarityFamily & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 8 – 166 | ThioredoxinPROSITE-ProRule annotationAdd BLAST | 159 |
Sequence similaritiesi
Keywords - Domaini
Redox-active centerFamily and domain databases
Gene3Di | 3.40.30.10, 1 hit |
InterProi | View protein in InterPro IPR000866, AhpC/TSA IPR024706, Peroxiredoxin_AhpC-typ IPR019479, Peroxiredoxin_C IPR036249, Thioredoxin-like_sf IPR013766, Thioredoxin_domain |
Pfami | View protein in Pfam PF10417, 1-cysPrx_C, 1 hit PF00578, AhpC-TSA, 1 hit |
PIRSFi | PIRSF000239, AHPC, 1 hit |
SUPFAMi | SSF52833, SSF52833, 1 hit |
PROSITEi | View protein in PROSITE PS51352, THIOREDOXIN_2, 1 hit |
i Sequence
Sequence statusi: Complete.
Q17172-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTLAGSKAFI GQPAPNFKTT AVVNGDFKEI SLGQFKGKYV VLLFYPLDFT
60 70 80 90 100
FVCPTEIIAF SDRIAEFKQL DVAVMACSTD SHFSHLAWVN TDRKMGGLGQ
110 120 130 140 150
MNIPILAYTN HVISRAYGVL KEDDGIAYRG LFIIDPKGIL GQITINDLPV
160 170 180 190
GRSVDETLRL IQAFQFVDKH GEVCPANWHP GSETIKPGVK ESKAYFEKH
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U47100 mRNA Translation: AAB67873.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U47100 mRNA Translation: AAB67873.1 |
3D structure databases
SMRi | Q17172 |
ModBasei | Search... |
Protein family/group databases
PeroxiBasei | 4489, Bmal2CysPrx02 |
Family and domain databases
Gene3Di | 3.40.30.10, 1 hit |
InterProi | View protein in InterPro IPR000866, AhpC/TSA IPR024706, Peroxiredoxin_AhpC-typ IPR019479, Peroxiredoxin_C IPR036249, Thioredoxin-like_sf IPR013766, Thioredoxin_domain |
Pfami | View protein in Pfam PF10417, 1-cysPrx_C, 1 hit PF00578, AhpC-TSA, 1 hit |
PIRSFi | PIRSF000239, AHPC, 1 hit |
SUPFAMi | SSF52833, SSF52833, 1 hit |
PROSITEi | View protein in PROSITE PS51352, THIOREDOXIN_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | TDX2_BRUMA | |
Accessioni | Q17172Primary (citable) accession number: Q17172 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 1, 1997 |
Last sequence update: | July 15, 1998 | |
Last modified: | December 2, 2020 | |
This is version 91 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families