Homo sapiens Gene: GJB1
Summary
InnateDB Gene IDBG-75309.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol GJB1
Gene Name gap junction protein, beta 1, 32kDa
Synonyms CMTX; CMTX1; CX32
Species Homo sapiens
Ensembl Gene ENSG00000169562
Encoded Proteins
gap junction protein, beta 1, 32kDa
gap junction protein, beta 1, 32kDa
gap junction protein, beta 1, 32kDa
gap junction protein, beta 1, 32kDa
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary This gene encodes a member of the gap junction protein family. The gap junction proteins are membrane-spanning proteins that assemble to form gap junction channels that facilitate the transfer of ions and small molecules between cells. According to sequence similarities at the nucleotide and amino acid levels, the gap junction proteins are divided into two categories, alpha and beta. Mutations in this gene cause X-linked Charcot-Marie-Tooth disease, an inherited peripheral neuropathy. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Oct 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome X:71215194-71225516
Strand Forward strand
Band q13.1
Transcripts
ENST00000374029 ENSP00000363141
ENST00000374022 ENSP00000363134
ENST00000361726 ENSP00000354900
ENST00000447581 ENSP00000407223
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 12 experimentally validated interaction(s) in this database.
Experimentally validated
Total 12 [view]
Protein-Protein 9 [view]
Protein-DNA 3 [view]
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0042803 protein homodimerization activity
Biological Process
GO:0006810 transport
GO:0007154 cell communication
GO:0007267 cell-cell signaling
GO:0007399 nervous system development
GO:0008219 cell death
GO:0016264 gap junction assembly
GO:0061024 membrane organization
Cellular Component
GO:0005737 cytoplasm
GO:0005789 endoplasmic reticulum membrane
GO:0005886 plasma membrane
GO:0005921 gap junction
GO:0005922 connexon complex
GO:0016021 integral component of membrane
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
Oligomerization of connexins into connexons pathway
Transport of connexins along the secretory pathway pathway
Gap junction assembly pathway
Gap junction trafficking pathway
Gap junction trafficking and regulation pathway
Membrane Trafficking pathway
KEGG
INOH
PID NCI
Cross-References
SwissProt P08034
TrEMBL C9JWU8
UniProt Splice Variant
Entrez Gene 2705
UniGene Hs.333303
RefSeq NM_001097642 NM_000166
HUGO HGNC:4283
OMIM 304040
CCDS CCDS14408
HPRD 02367
IMGT
EMBL AK313474 AL590762 BC002805 BC022426 BC039198 BT019329 CH471132 L47127 X04325
GenPept AAA75086 AAH02805 AAH22426 AAH39198 AAV38136 BAG36259 CAA27856 EAX05305 EAX05306
RNA Seq Atlas 2705