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UniProtKB/Swiss-Prot entry P35704


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name PRDX2_RAT
Primary accession number P35704
Secondary accession number Q6PDV3
Integrated into Swiss-Prot on June 1, 1994
Sequence was last modified on January 23, 2007 (Sequence version 3)
Annotations were last modified on    November 25, 2008 (Entry version 76)
Name and origin of the protein
Protein name Peroxiredoxin-2
Synonyms EC 1.11.1.15
Thioredoxin peroxidase 1
Thioredoxin-dependent peroxide reductase 1
Thiol-specific antioxidant protein
TSA
Gene name
Name: Prdx2
Synonyms: Tdpx1
From
Rattus norvegicus (Rat) [TaxID: 10116] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Sciurognathi; Muroidea; Muridae; Murinae; Rattus.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA].
TISSUE=Brain;
PubMed=8041738 [NCBI, ExPASy, EBI, Israel, Japan]
Chae H.Z., Robison K., Poole L.B., Church G., Storz G., Rhee S.G.;
"Cloning and sequencing of thiol-specific antioxidant from mammalian brain: alkyl hydroperoxide reductase and thiol-specific antioxidant define a large family of antioxidant enzymes.";
Proc. Natl. Acad. Sci. U.S.A. 91:7017-7021(1994).
[2]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
TISSUE=Pituitary;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[3]
PROTEIN SEQUENCE OF 93-135 AND 140-157, AND MASS SPECTROMETRY.
STRAIN=Sprague-Dawley;
TISSUE=Brain, Hippocampus, and Spinal cord;
Lubec G., Afjehi-Sadat L., Diao W., Kang S.U.;
Submitted (JUL-2007) to UniProtKB.
Comments
  • FUNCTION: Involved in redox regulation of the cell. Reduces peroxides with reducing equivalents provided through the thioredoxin system. It is not able to receive electrons from glutaredoxin. May play an important role in eliminating peroxides generated during metabolism. Might participate in the signaling cascades of growth factors and tumor necrosis factor-alpha by regulating the intracellular concentrations of H(2)O(2).
  • CATALYTIC ACTIVITY: 2 R'-SH + ROOH = R'-S-S-R' + H2O + ROH.
  • SUBUNIT: Homodimer; disulfide-linked, upon oxidation. Interacts with TIPIN (By similarity).
  • SUBCELLULAR LOCATION: Cytoplasm.
  • MISCELLANEOUS: The active site is the redox-active Cys-51 oxidized to Cys-SOH. Cys-SOH rapidly reacts with Cys-172-SH of the other subunit to form an intermolecular disulfide with a concomitant homodimer formation. The enzyme may be subsequently regenerated by reduction of the disulfide by thioredoxin (By similarity).
  • MISCELLANEOUS: Inactivated upon oxidative stress by overoxidation of Cys-51 to Cys-SO(2)H and Cys-SO(3)H. Cys-SO(2)H is retroreduced to Cys-SOH after removal of H(2)O(2), while Cys-SO(3)H may be irreversibly oxidized (By similarity).
  • SIMILARITY: Belongs to the ahpC/TSA family.
  • SIMILARITY: Contains 1 thioredoxin domain.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
U06099; AAA19959.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC058481; AAH58481.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR A57716; A57716.
RefSeq NP_058865.1; -.
UniGene Rn.2511
3D structure databases
HSSP P32119; 1QMV. [HSSP ENTRY / PDB]
SMR P35704; 2-197, 3-198.
ModBase P35704.
Protein family/group databases
PeroxiBase 4477; Rno2CysPrx02.
PTM databases
PhosphoSite P35704; -.
Organism-specific databases
RGD 3838; Prdx2.
Gene expression databases
ArrayExpress P35704; -.
GermOnline ENSRNOG00000003520; Rattus norvegicus.
Ontologies
GO
GO:0005737; Cellular component: cytoplasm (inferred from electronic annotation from UniProtKB-KW).
GO:0051920; Molecular function: peroxiredoxin activity (inferred from electronic annotation from EC).
GO:0045454; Biological process: cell redox homeostasis (inferred from electronic annotation from InterPro).
GO:0055114; Biological process: oxidation reduction (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
InterPro IPR000866; AhpC-TSA.
IPR012335; Thioredoxin_fold.
Graphical view of domain structure.
Gene3D G3DSA:3.40.30.10; Thioredoxin_fold; 1.
Pfam PF00578; AhpC-TSA; 1.
Pfam graphical view of domain structure.
PROSITE PS51352; THIOREDOXIN_2; 1.
PROSITE graphical view of domain structure (profiles).
ProtoNet P35704.
Genome annotation databases
Ensembl ENSRNOG00000003520; Rattus norvegicus. [Contig view]
GeneID 29338; -.
KEGG rno:29338; -.
Phylogenomic databases
HOVERGEN P35704; -.
Other
NextBio 608824; -.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Acetylation; Antioxidant; Cytoplasm; Direct protein sequencing; Oxidoreductase; Peroxidase; Redox-active center.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
INIT_MET   1     1        Removed (By similarity). 
CHAIN   2   198  197     Peroxiredoxin-2. PRO_0000135083
DOMAIN   6   164  159     Thioredoxin. 
ACT_SITE   51    51        Cysteine sulfenic acid (-SOH) intermediate (By similarity). 
MOD_RES   2     2        N-acetylalanine (By similarity). 
DISULFID   51    51        Interchain (with C-172); in linked form (By similarity). 
DISULFID   172   172        Interchain (with C-51); in linked form (By similarity). 
CONFLICT   17    17        G -> A (in Ref. 2; AAH58481). 
Sequence information
Length: 198 AA [This is the length of the unprocessed precursor] Molecular weight: 21784 Da [This is the MW of the unprocessed precursor] CRC64: FC6AD9B0E9C4447B [This is a checksum on the sequence]
        10         20         30         40         50         60 
MASGNAHIGK PAPDFTGTAV VDGAFKEIKL SDYRGKYVVL FFYPLDFTFV CPTEIIAFSD 

        70         80         90        100        110        120 
HAEDFRKLGC EVLGVSVDSQ FTHLAWINTP RKEGGLGPLN IPLLADVTKS LSQNYGVLKN 

       130        140        150        160        170        180 
DEGIAYRGLF IIDAKGVLRQ ITVNDLPVGR SVDEALRLVQ AFQYTDEHGE VCPAGWKPGS 

       190 
DTIKPNVDDS KEYFSKHN 

P35704 in FASTA format

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