gpx1b glutathione peroxidase 1b [Danio rerio (zebrafish)] - Gene

Summary

Official Symbol: gpx1bprovided by ZNC
Official Full Name: glutathione peroxidase 1bprovided by ZNC
Primary source: ZFIN:ZDB-GENE-040912-60
See related: AllianceGenome:ZFIN:ZDB-GENE-040912-60
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: wu:fd42f12; wu:fj22d06; zgc:101700
Summary: The protein encoded by this gene belongs to the glutathione peroxidase family, members of which catalyze the reduction of organic hydroperoxides and hydrogen peroxide (H2O2) by glutathione, and thereby protect cells against oxidative damage. Other studies indicate that H2O2 is also essential for growth-factor mediated signal transduction, mitochondrial function, and maintenance of thiol redox-balance; therefore, by limiting H2O2 accumulation, glutathione peroxidases are also involved in modulating these processes. Several isozymes of this gene family exist in vertebrates, which vary in cellular location and substrate specificity. This isozyme is the most abundant, is ubiquitously expressed and localized in the cytoplasm, and whose preferred substrate is hydrogen peroxide. Zebrafish has two paralogs of this isozyme (gpx1a and gpx1b), which exhibit different temporal expression during development. Both are selenoproteins, containing the rare amino acid selenocysteine (Sec) at their active sites. 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. [provided by RefSeq, Jul 2016]
Orthologs: all
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Genomic context

Location:: chromosome: 6

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCz11 (GCF_000002035.6)	6	NC_007117.7 (42338310..42341224)
105	previous assembly	GRCz10 (GCF_000002035.5)	6	NC_007117.6 (42340774..42343688)

Chromosome 6 - NC_007117.7 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
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?

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General gene information

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Markers

fd42f12.x1 (e-PCR)
- UniSTS:195438

AW202799 (e-PCR)
- UniSTS:205732

Gene Ontology Provided by ZFIN

Function	Evidence Code	Pubs
enables oxidoreductase activity	IEA Inferred from Electronic Annotation more info
enables peroxidase activity	IEA Inferred from Electronic Annotation more info

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

General protein information

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Preferred Names: glutathione peroxidase 1b

NP_001004634.2

EC 1.11.1.9

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_001004634.2 → NP_001004634.2 glutathione peroxidase 1b

Status: REVIEWED

Source sequence(s)

EH492461, EH503547, EH520320

UniProtKB/TrEMBL

A0A8M1N295

Conserved Domains (1) summary

cd00340
Location:6 → 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 ...