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Entry version 175 (10 Feb 2021)
Sequence version 1 (01 Oct 1994)
Previous versions | rss
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Protein

Glutathione peroxidase-like peroxiredoxin 2

Gene

GPX2

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Glutathione peroxidase-like protein that protects cells from phospholipid hydroperoxides and nonphospholipid peroxides during oxidative stress (PubMed:10480913, PubMed:11445588). Plays an important role in the oxidative stress-induced response in the presence of Ca2+. Has peroxidase activity using preferentially thioredoxin as a reducing power. The redox state of the mitochondrial GPX2 is regulated by TRX1 and TRX2 (cytoplasmic thioredoxin), and by TRX3 (mitochondrial matrix thioredoxin) (PubMed:16251189). Involved in sporulation (PubMed:21763276).4 Publications

Miscellaneous

Present with 2010 molecules/cell in log phase SD medium.1 Publication
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 atypical 2-Cys peroxiredoxin, C(R) is present in the same subunit to form an intramolecular disulfide.1 Publication

Caution

Was originally thought to be a glutathione peroxidase (PubMed:10480913) or a phospholipid hydroperoxide glutathione peroxidase (PubMed:11445588), but functions as an atypical 2-Cys peroxiredoxin using thioredoxin as reducing power instead (PubMed:16251189).3 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=170 µM for H2O2 (using glutathione as electron donor)1 Publication
  2. KM=313 µM for tert-butyl hydroperoxide (using glutathione as electron donor)1 Publication
  3. KM=20 µM for H2O2 (using thioredoxin as electron donor)1 Publication
  4. KM=62.5 µM for tert-butyl hydroperoxide (using glutathione as electron donor)1 Publication
  1. Vmax=0.27 µmol/min/mg enzyme for H2O2 (using glutathione as electron donor)1 Publication
  2. Vmax=0.295 µmol/min/mg enzyme for tert-butyl hydroperoxide (using glutathione as electron donor)1 Publication
  3. Vmax=2.6 µmol/min/mg enzyme for H2O2 (using thioredoxin as electron donor)1 Publication
  4. Vmax=1 µmol/min/mg enzyme for tert-butyl hydroperoxide (using thioredoxin as electron donor)1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei37Cysteine sulfenic acid (-SOH) intermediate1 Publication1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

  • cellular response to oxidative stress Source: SGD

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionAntioxidant, Oxidoreductase, Peroxidase

Protein family/group databases

PeroxiBase, a peroxidase database

More...
PeroxiBasei
3741, SceGPx02

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Glutathione peroxidase-like peroxiredoxin 21 Publication (EC:1.11.1.241 Publication)
Alternative name(s):
Glutathione peroxidase homolog 21 Publication
Short name:
GPx 2
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:GPX21 Publication
Ordered Locus Names:YBR244WImported
ORF Names:YBR1632
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri559292 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002311 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome II

Organism-specific databases

Saccharomyces Genome Database

More...
SGDi
S000000448, GPX2

Eukaryotic Pathogen, Vector and Host Database Resources

More...
VEuPathDBi
FungiDB:YBR244W

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Cytoplasm, Membrane, Mitochondrion, Mitochondrion inner membrane, Mitochondrion outer membrane, Nucleus

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi37C → A: Prevents oxidation of the protein. 1 Publication1
Mutagenesisi83C → A: Prevents oxidation of the protein. 1 Publication1

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000666421 – 162Glutathione peroxidase-like peroxiredoxin 2Add BLAST162

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi37 ↔ 83Redox-active1 Publication

Keywords - PTMi

Disulfide bond

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P38143

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P38143

PRoteomics IDEntifications database

More...
PRIDEi
P38143

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P38143

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

By oxidative stress, dependent on transcription factor YAP1 (PubMed:10480913). By oleic acid (PubMed:21763276).2 Publications

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Monomer.

1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
32939, 76 interactors

Database of interacting proteins

More...
DIPi
DIP-8180N

Protein interaction database and analysis system

More...
IntActi
P38143, 12 interactors

Molecular INTeraction database

More...
MINTi
P38143

STRING: functional protein association networks

More...
STRINGi
4932.YBR244W

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P38143, protein

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P38143

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the glutathione peroxidase family.Curated

Keywords - Domaini

Redox-active center

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1651, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000165680

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_029507_2_2_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P38143

Identification of Orthologs from Complete Genome Data

More...
OMAi
LAPFKGQ

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00340, GSH_Peroxidase, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.30.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000889, Glutathione_peroxidase
IPR029759, GPX_AS
IPR029760, GPX_CS
IPR036249, Thioredoxin-like_sf

The PANTHER Classification System

More...
PANTHERi
PTHR11592, PTHR11592, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00255, GSHPx, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000303, Glutathion_perox, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01011, GLUTPROXDASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52833, SSF52833, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00460, GLUTATHIONE_PEROXID_1, 1 hit
PS00763, GLUTATHIONE_PEROXID_2, 1 hit
PS51355, GLUTATHIONE_PEROXID_3, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

P38143-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTTSFYDLEC KDKKGESFKF DQLKGKVVLI VNVASKCGFT PQYKELEELY
60 70 80 90 100
KKYQDKGFVI LGFPCNQFGK QEPGSDEQIT EFCQLNYGVT FPIMKKIDVN
110 120 130 140 150
GSNADSVYNY LKSQKAGLLG FKGIKWNFEK FLVDSNGKVV QRFSSLTKPS
160
SLDQEIQSLL SK
Length:162
Mass (Da):18,406
Last modified:October 1, 1994 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iBD02E7E6D38527A6
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
Z36113 Genomic DNA Translation: CAA85207.1
AY557641 Genomic DNA Translation: AAS55967.1
BK006936 Genomic DNA Translation: DAA07360.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S46121

NCBI Reference Sequences

More...
RefSeqi
NP_009803.3, NM_001178592.3

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YBR244W_mRNA; YBR244W; YBR244W

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
852546

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YBR244W

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z36113 Genomic DNA Translation: CAA85207.1
AY557641 Genomic DNA Translation: AAS55967.1
BK006936 Genomic DNA Translation: DAA07360.1
PIRiS46121
RefSeqiNP_009803.3, NM_001178592.3

3D structure databases

SMRiP38143
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi32939, 76 interactors
DIPiDIP-8180N
IntActiP38143, 12 interactors
MINTiP38143
STRINGi4932.YBR244W

Protein family/group databases

PeroxiBasei3741, SceGPx02

PTM databases

iPTMnetiP38143

Proteomic databases

MaxQBiP38143
PaxDbiP38143
PRIDEiP38143

Genome annotation databases

EnsemblFungiiYBR244W_mRNA; YBR244W; YBR244W
GeneIDi852546
KEGGisce:YBR244W

Organism-specific databases

SGDiS000000448, GPX2
VEuPathDBiFungiDB:YBR244W

Phylogenomic databases

eggNOGiKOG1651, Eukaryota
GeneTreeiENSGT00940000165680
HOGENOMiCLU_029507_2_2_1
InParanoidiP38143
OMAiLAPFKGQ

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P38143
RNActiP38143, protein

Family and domain databases

CDDicd00340, GSH_Peroxidase, 1 hit
Gene3Di3.40.30.10, 1 hit
InterProiView protein in InterPro
IPR000889, Glutathione_peroxidase
IPR029759, GPX_AS
IPR029760, GPX_CS
IPR036249, Thioredoxin-like_sf
PANTHERiPTHR11592, PTHR11592, 1 hit
PfamiView protein in Pfam
PF00255, GSHPx, 1 hit
PIRSFiPIRSF000303, Glutathion_perox, 1 hit
PRINTSiPR01011, GLUTPROXDASE
SUPFAMiSSF52833, SSF52833, 1 hit
PROSITEiView protein in PROSITE
PS00460, GLUTATHIONE_PEROXID_1, 1 hit
PS00763, GLUTATHIONE_PEROXID_2, 1 hit
PS51355, GLUTATHIONE_PEROXID_3, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiGPX2_YEAST
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P38143
Secondary accession number(s): D6VQP0
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 1, 1994
Last sequence update: October 1, 1994
Last modified: February 10, 2021
This is version 175 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  2. Yeast chromosome II
    Yeast (Saccharomyces cerevisiae) chromosome II: entries and gene names
  3. SIMILARITY comments
    Index of protein domains and families
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