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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) Band 15q14 Start 34,751,032 bp End 34,754,998 bp
Gene location (Mouse) Chr. Chromosome 2 (mouse) Band 2|2 E4 Start 113,840,082 bp End 113,844,100 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in islet of Langerhans gonad Pituitary Gland anterior pituitary prefrontal cortex right auricle 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
Wikidata
View/Edit Human View/Edit Mouse

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.

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.

References

1. ^ GRCh38: Ensembl release 89: ENSG00000159248 – Ensembl, May 2017
2. ^ GRCm38: Ensembl release 89: ENSMUSG00000068615 – Ensembl, May 2017
3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
5. Belluardo N, Trovato-Salinaro A, Mudo G, Hurd YL, Condorelli DF (Oct 1999). "Structure, chromosomal localization, and brain expression of human Cx36 gene". J Neurosci Res. 57 (5): 740–52. doi:10.1002/(SICI)1097-4547(19990901)57:5<740::AID-JNR16>3.0.CO;2-Z. PMID 10462698. S2CID 496510.
6. ^ "Entrez Gene: GJA9 gap junction protein, alpha 9, 36kDa".

Further reading

• Andrew L Harris; Darren Locke (2009). Connexins, A Guide. New York: Springer. p. 574. ISBN 978-1-934115-46-6.
• de Brouwer AP, Pennings RJ, Roeters M, et al. (2003). "Mutations in the calcium-binding motifs of CDH23 and the 35delG mutation in GJB2 cause hearing loss in one family". Hum. Genet. 112 (2): 156–63. doi:10.1007/s00439-002-0833-0. PMID 12522556. S2CID 310717.
• Martin D, Tawadros T, Meylan L, et al. (2004). "Critical role of the transcriptional repressor neuron-restrictive silencer factor in the specific control of connexin36 in insulin-producing cell lines". J. Biol. Chem. 278 (52): 53082–9. doi:10.1074/jbc.M306861200. PMID 14565956.
• Bathelier C, François M, Lucotte G (2004). "Neonatal detection of the 35delG mutation of the GJB2 gene in families at risk for deafness". Genet. Couns. 15 (1): 61–6. PMID 15083701.
• Degen J, Meier C, Van Der Giessen RS, et al. (2004). "Expression pattern of lacZ reporter gene representing connexin36 in transgenic mice". J. Comp. Neurol. 473 (4): 511–25. doi:10.1002/cne.20085. PMID 15116387. S2CID 10347889.
• Mas C, Taske N, Deutsch S, et al. (2004). "Association of the connexin36 gene with juvenile myoclonic epilepsy". J. Med. Genet. 41 (7): e93. doi:10.1136/jmg.2003.017954. PMC 1735851. PMID 15235036.
• Dobrenis K, Chang HY, Pina-Benabou MH, et al. (2006). "Human and mouse microglia express connexin36, and functional gap junctions are formed between rodent microglia and neurons". J. Neurosci. Res. 82 (3): 306–15. doi:10.1002/jnr.20650. PMC 2583240. PMID 16211561.
• Hempelmann A, Heils A, Sander T (2006). "Confirmatory evidence for an association of the connexin-36 gene with juvenile myoclonic epilepsy". Epilepsy Res. 71 (2–3): 223–8. doi:10.1016/j.eplepsyres.2006.06.021. PMID 16876983. S2CID 21966870.
• Aleksic B, Ishihara R, Takahashi N, et al. (2007). "Gap junction coding genes and schizophrenia: a genetic association study". J. Hum. Genet. 52 (6): 498–501. doi:10.1007/s10038-007-0142-5. PMID 17427027.

External links

• Overview of all the structural information available in the PDB for UniProt: Q9UKL4 (Gap junction delta-2 protein) at the PDBe-KB.

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