GJD2

Gap junction delta-2 protein (GJD2), also known as connexin-36 (Cx36) or gap junction alpha-9 protein (GJA9), is a protein that in humans is encoded by the GJD2 gene.^[5][6]

GJD2
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2N6A
Identifiers
Aliases	GJD2, CX36, GJA9, gap junction protein delta 2
External IDs	OMIM: 607058; MGI: 1334209; HomoloGene: 7734; GeneCards: GJD2; OMA:GJD2 - orthologs
Gene location (Human) Chr. Chromosome 15 (human)[1] Band 15q14 Start 34,751,032 bp[1] End 34,754,998 bp[1]
Gene location (Mouse) Chr. Chromosome 2 (mouse)[2] Band 2|2 E4 Start 113,840,082 bp[2] End 113,844,100 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in islet of Langerhans gonad pituitary gland anterior pituitary prefrontal cortex right auricle of heart body of pancreas Occipital Lobe dorsolateral prefrontal cortex Brodmann area 9 Top expressed in thoracic ganglia islet of Langerhans neural layer of retina lumbar subsegment of spinal cord stellate ganglion anterior horn of spinal cord facial motor nucleus pineal gland olfactory bulb retinal pigment epithelium More reference expression data BioGPS More reference expression data
Gene ontology Molecular function gap junction channel activity Cellular component integral component of membrane gap junction cell junction plasma membrane connexin complex membrane Biological process action potential cell communication cell-cell signaling visual perception chemical synaptic transmission transmembrane transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 57369 14617 Ensembl ENSG00000159248 ENSMUSG00000068615 UniProt Q9UKL4 O54851 RefSeq (mRNA) NM_020660 NM_010290 RefSeq (protein) NP_065711 NP_034420 Location (UCSC) Chr 15: 34.75 – 34.75 Mb Chr 2: 113.84 – 113.84 Mb PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Function

GJD2, also called connexin-36 (CX36), is a member of the connexin gene family that is expressed predominantly in mammalian neurons. Connexins associate in groups of 6 and are organized radially around a central pore to form connexons. Each gap junction intercellular channel is formed by the conjunction of 2 connexons. See GJB2 for additional background information on connexins.^[6]