Gjb1 gap junction protein, beta 1 [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Gjb1provided by RGD
Official Full Name: gap junction protein, beta 1provided by RGD
Primary source: RGD:61926
See related: EnsemblRapid:ENSRNOG00000063213 AllianceGenome:RGD:61926
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Also known as: Cx32; Cxng
Summary: Enables gap junction channel activity. Involved in epididymis development and purine ribonucleotide transport. Located in gap junction and lateral plasma membrane. Part of protein-containing complex. Biomarker of autoimmune thyroiditis and extrahepatic cholestasis. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease X-linked dominant 1. Orthologous to human GJB1 (gap junction protein beta 1). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Biased expression in Liver (RPKM 1096.1) and Kidney (RPKM 93.4) See more
Orthologs: human mouse all
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Genomic context

Location:: Xq22

Exon count:: 4

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	X	NC_086039.1 (70541845..70549776)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	X	NC_051356.1 (66501848..66509783)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	X	NC_005120.4 (71272030..71279973)

Chromosome X - NC_086039.1 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: A rat RNA-Seq transcriptomic BodyMap across 11 organs and 4 developmental stages
Description: 320 RNA samples isolated from 11 organs (adrenal gland, brain, heart, kidney, liver, lung, muscle, spleen, thymus, and testes or uterus) from both sexes of Fischer 344 rats across four developmental stages (2-, 6-, 21-, and 104-weeks-old)
BioProject: PRJNA238328
Publication: PMID 24510058
Analysis date: Mon Jun 6 17:44:12 2016

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Connexin32 gap junction channels deliver miR155-3p to mediate pyroptosis in renal ischemia-reperfusion injury.
Title: Connexin32 gap junction channels deliver miR155-3p to mediate pyroptosis in renal ischemia-reperfusion injury.
GJB1 mutations c.212T>G and c.311A>C induce apoptosis and inwardly rectifying potassium current changes in X-linked Charcot-Marie-Tooth type 1.
Title: GJB1 mutations c.212T>G and c.311A>C induce apoptosis and inwardly rectifying potassium current changes in X-linked Charcot-Marie-Tooth type 1.
Heart and liver connexin expression related to the first stage of aging: A study on naturally aged animals.
Title: Heart and liver connexin expression related to the first stage of aging: A study on naturally aged animals.
Crosstalk Between Connexin32 and Mitochondrial Apoptotic Signaling Pathway Plays a Pivotal Role in Renal Ischemia Reperfusion-Induced Acute Kidney Injury.
Title: Crosstalk Between Connexin32 and Mitochondrial Apoptotic Signaling Pathway Plays a Pivotal Role in Renal Ischemia Reperfusion-Induced Acute Kidney Injury.
these results highlight the role of post translational modifications and lysines in the C-terminal tail of Cx32 in the fine-tuning of Cx32 protein stability and channel-independent functions.
Title: Acetylation of C-terminal lysines modulates protein turnover and stability of Connexin-32.
In vitro gain and loss of function analyses showed overexpression of Connexin 32 and knockdown of Connexin 43 promoted hepatocytes differentiation from hepatic progenitor cells.
Title: Connexin 32 and connexin 43 are involved in lineage restriction of hepatic progenitor cells to hepatocytes.
retrograde influences originating from the peripheral injury site elicit dramatic changes in the central nervous system expression of Connexin 32, which in turn may mediate the plasticity of oligodendrocyte lineage cells observed in the spinal cord following peripheral axon injury.
Title: Increased Cx32 expression in spinal cord TrkB oligodendrocytes following peripheral axon injury.
Connexin 32 dysfunction promotes ethanol-related hepatocarcinogenesis via activation of Dusp1-Erk axis.
Title: Connexin 32 dysfunction promotes ethanol-related hepatocarcinogenesis via activation of Dusp1-Erk axis.
Cx 32 and Cx 43 associated with oligodendrocytes and astrocytes had an important role in the first stages of seizures induced by 4-AP, whereas Cx36 localized to neurons could be associated with later stages.
Title: Analysis of connexin expression during seizures induced by 4-aminopyridine in the rat hippocampus.
Cx32 and luteolin have suppressive roles in inflammation, fibrosis and hepatocarcinogenesis during non-alcoholic steatohepatitis progression.
Title: Connexin 32 and luteolin play protective roles in non-alcoholic steatohepatitis development and its related hepatocarcinogenesis in rats.

Submit: New GeneRIF Correction See all GeneRIFs (28)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables gap junction channel activity	IBA Inferred from Biological aspect of Ancestor more info
enables gap junction channel activity	IDA Inferred from Direct Assay more info	PubMed
enables identical protein binding	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in cell communication	IEA Inferred from Electronic Annotation more info
involved_in cell-cell signaling	IBA Inferred from Biological aspect of Ancestor more info
involved_in epididymis development	IEP Inferred from Expression Pattern more info	PubMed
involved_in purine ribonucleotide transport	IDA Inferred from Direct Assay more info	PubMed
involved_in transmembrane transport	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
part_of connexin complex	IBA Inferred from Biological aspect of Ancestor more info
part_of connexin complex	IEA Inferred from Electronic Annotation more info
located_in cytoplasm	ISO Inferred from Sequence Orthology more info
located_in gap junction	IDA Inferred from Direct Assay more info	PubMed
located_in gap junction	ISO Inferred from Sequence Orthology more info
located_in lateral plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	ISO Inferred from Sequence Orthology more info
part_of protein-containing complex	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: gap junction beta-1 protein

Names: GAP junction 28 kDa liver protein; connexin g; connexin-32; gap junction membrane channel protein beta 1

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.