gpx4a glutathione peroxidase 4a [Danio rerio (zebrafish)] - Gene

Summary

Official Symbol: gpx4aprovided by ZNC
Official Full Name: glutathione peroxidase 4aprovided by ZNC
Primary source: ZFIN:ZDB-GENE-030410-2
See related: Ensembl:ENSDARG00000068478 AllianceGenome:ZFIN:ZDB-GENE-030410-2
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Danio rerio
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Cypriniformes; Danionidae; Danioninae; Danio
Also known as: cb563; cb691; PHGPxa; sb:cb563; zgc:92253; wu:fb82e03
Summary: The protein encoded by this gene belongs to the glutathione peroxidase family, members of which catalyze the reduction of hydrogen peroxide, organic hydroperoxides and lipid hydroperoxides, and thereby protect cells against oxidative damage. Several isozymes of this gene family exist in vertebrates, which vary in cellular location and substrate specificity. This isozyme has a high preference for lipid hydroperoxides and protects cells against membrane lipid peroxidation and cell death. It is also required for normal sperm development. This isozyme is a selenoprotein, containing the rare amino acid selenocysteine (Sec) at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. A paralog of this gene is present on chromosome 2. Each paralog has a distinct pattern of expression during embryonic development. [provided by RefSeq, Aug 2017]
Orthologs: human mouse all
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Genomic context

Location:: chromosome: 22

Exon count:: 8

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCz11 (GCF_000002035.6)	22	NC_007133.7 (17589608..17597002, complement)
105	previous assembly	GRCz10 (GCF_000002035.5)	22	NC_007133.6 (17564630..17570315, complement)

Chromosome 22 - NC_007133.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: Sequencing the Zebrafish transcriptome from a range of tissues and developmental stages Sequencing the Zebrafish transcriptome from a range of tissues and developmental stages
Description: Sequencing the Zebrafish transcriptome from a range of tissues and developmental stages
BioProject: PRJEB1986
Analysis date: Fri Dec 8 19:48:10 2017

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

We found that the gpx4b gene shows maternal and zygotic gene expression in the embryo proper compared to gpx4a that showed zygotic gene expression in the periderm covering the yolk cell only.
Title: Spatial and temporal expression of zebrafish glutathione peroxidase 4 a and b genes during early embryo development.

Submit: New GeneRIF Correction

General gene information

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Markers

AI584713 (e-PCR)
- UniSTS:206235

fb82e03.x1 (e-PCR)
- UniSTS:203471

Gene Ontology Provided by ZFIN

Function	Evidence Code	Pubs
enables glutathione peroxidase activity	IBA Inferred from Biological aspect of Ancestor more info
enables oxidoreductase activity	IEA Inferred from Electronic Annotation more info
enables peroxidase activity	IEA Inferred from Electronic Annotation more info
enables phospholipid-hydroperoxide glutathione peroxidase activity	IBA Inferred from Biological aspect of Ancestor more info

Process	Evidence Code	Pubs
acts_upstream_of_or_within response to oxidative stress	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
is_active_in mitochondrion	IBA Inferred from Biological aspect of Ancestor more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: glutathione peroxidase 4a

NP_001007283.2

EC 1.11.1.12

NP_001333466.1

EC 1.11.1.12

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_001007282.2 → NP_001007283.2 glutathione peroxidase 4a isoform 2 precursor

Status: REVIEWED

Description

Transcript Variant: This variant (2) contains an alternate 5' terminal exon and uses an alternate translation start site compared to variant 1. The resulting isoform (2) has a shorter and distinct N-terminus compared to isoform 1.

Source sequence(s)

EH582507, EH584097

UniProtKB/TrEMBL

A0A8M1N2T9

Related

ENSDARP00000089830.4, ENSDART00000099056.5

Conserved Domains (1) summary

cd00340
Location:29 → 182

GSH_Peroxidase; Glutathione (GSH) peroxidase family; tetrameric selenoenzymes that catalyze the reduction of a variety of hydroperoxides including lipid peroxidases, using GSH as a specific electron donor substrate. GSH peroxidase contains one selenocysteine residue per ...
NM_001346537.1 → NP_001333466.1 glutathione peroxidase 4a isoform 1 precursor

Status: REVIEWED

Description

Transcript Variant: This variant (1) represents the longer transcript, and encodes the longer isoform (1).

Source sequence(s)

EH454234, EH584097

UniProtKB/TrEMBL

A0A8M1PAF3