Ppp1r15b protein phosphatase 1, regulatory subunit 15B [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Ppp1r15bprovided by MGI
Official Full Name: protein phosphatase 1, regulatory subunit 15Bprovided by MGI
Primary source: MGI:MGI:2444211
See related: Ensembl:ENSMUSG00000046062 AllianceGenome:MGI:2444211
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: CReP; 1810033K10Rik; C530022L24Rik
Summary: Enables protein phosphatase regulator activity. Acts upstream of or within ER overload response and response to hydrogen peroxide. Part of protein phosphatase type 1 complex. Is expressed in compacted morula and inner cell mass. Orthologous to human PPP1R15B (protein phosphatase 1 regulatory subunit 15B). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Ubiquitous expression in liver E14 (RPKM 17.3), colon adult (RPKM 16.0) and 28 other tissues See more
Orthologs: human all
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Genomic context

Location:: 1 E4; 1 57.8 cM

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	1	NC_000067.7 (133058904..133067538)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	1	NC_000067.6 (133131166..133139800)

Chromosome 1 - NC_000067.7 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: Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

CReP deletion activates a linear signaling pathway involving eIF2alpha phosphorylation, ATF4 translation, and FGF21 induction, which promotes increased energy expenditure, and subsequently improved obesity-related metabolic parameters.
Title: Preemptive Activation of the Integrated Stress Response Protects Mice From Diet-Induced Obesity and Insulin Resistance by Fibroblast Growth Factor 21 Induction.
Results highlighted the essential roles played by GADD34 and CReP in regulating mRNA translation during unstressed conditions and following endoplasmic reticulum stress.
Title: Complementary Roles of GADD34- and CReP-Containing Eukaryotic Initiation Factor 2α Phosphatases during the Unfolded Protein Response.
CReP expression was markedly suppressed in XBP1-deficient mice livers due to hyperactivated Ire1alpha.
Title: IRE1α-Dependent Decay of CReP/Ppp1r15b mRNA Increases Eukaryotic Initiation Factor 2α Phosphorylation and Suppresses Protein Synthesis.
Ppp1r15a mutant mice are superficially indistinguishable from wild type; Ppp1r15b(-/-) mouse embryos survive gestation but exhibit severe growth retardation and impaired erythropoiesis, and loss of both Ppp1r15 genes leads to early embryonic lethality
Title: Ppp1r15 gene knockout reveals an essential role for translation initiation factor 2 alpha (eIF2alpha) dephosphorylation in mammalian development.

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Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Targeted (1) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables protein phosphatase regulator activity	IBA Inferred from Biological aspect of Ancestor more info
enables protein phosphatase regulator activity	IDA Inferred from Direct Assay more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within ER overload response	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within ER overload response	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in negative regulation of protein phosphorylation	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within regulation of translational initiation	IC Inferred by Curator more info	PubMed
involved_in response to endoplasmic reticulum stress	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within response to endoplasmic reticulum stress	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within response to hydrogen peroxide	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within response to oxidative stress	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within response to oxidative stress	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
is_active_in endoplasmic reticulum	IBA Inferred from Biological aspect of Ancestor more info
part_of protein phosphatase type 1 complex	IBA Inferred from Biological aspect of Ancestor more info
part_of protein phosphatase type 1 complex	IDA Inferred from Direct Assay more info	PubMed
part_of protein phosphatase type 1 complex	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: protein phosphatase 1 regulatory subunit 15B

Names: constitutive repressor of eIF2alpha phosphorylation; protein phosphatase 1, regulatory (inhibitor) subunit 15b

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_133819.3 → NP_598580.1 protein phosphatase 1 regulatory subunit 15B

See identical proteins and their annotated locations for NP_598580.1

Status: VALIDATED

Source sequence(s)

AC107842, AK146089

Consensus CDS

CCDS15291.1

UniProtKB/Swiss-Prot

Q3TC78, Q8BFW3, Q8C390

Related

ENSMUSP00000057062.4, ENSMUST00000052529.4

Conserved Domains (2) summary

pfam10472
Location:1 → 394

CReP_N; eIF2-alpha phosphatase phosphorylation constitutive repressor

pfam10488
Location:397 → 682

PP1c_bdg; Phosphatase-1 catalytic subunit binding region