GJB4

Gap junction beta-4 protein (GJB4), also known as connexin 30.3 (Cx30.3) — is a protein that in humans is encoded by the GJB4 gene.[5]

GJB4
Identifiers
Aliases	GJB4, CX30.3, EKV, gap junction protein beta 4, EKVP2
External IDs	OMIM: 605425 MGI: 95722 HomoloGene: 7339 GeneCards: GJB4
Gene location (Human) Chr. Chromosome 1 (human)[1] Band 1p34.3 Start 34,759,740 bp[1] End 34,762,327 bp[1]
Gene location (Mouse) Chr. Chromosome 4 (mouse)[2] Band 4 D2.2|4 61.51 cM Start 127,351,086 bp[2] End 127,354,081 bp[2]
RNA expression pattern More reference expression data
Gene ontology Molecular function • gap junction channel activity Cellular component • connexon • integral component of membrane • gap junction • cell membrane • membrane • cell nucleus • nucleolus • cell junction • integral component of plasma membrane Biological process • cell communication • sensory perception of smell • olfactory behavior • cell-cell signaling • transmembrane transport • gap junction-mediated intercellular transport Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	127534	14621
Ensembl	ENSG00000189433	ENSMUSG00000046623
UniProt	Q9NTQ9	Q02738
RefSeq (mRNA)	NM_153212	NM_008127
RefSeq (protein)	NP_694944	NP_032153
Location (UCSC)	Chr 1: 34.76 – 34.76 Mb	Chr 4: 127.35 – 127.35 Mb
PubMed search	[3]	[4]
Wikidata
View/Edit Human View/Edit Mouse

References

1. GRCh38: Ensembl release 89: ENSG00000189433 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000046623 - 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. "Entrez Gene: GJB4 gap junction protein, beta 4".

Further reading

• Andrew L Harris; Darren Locke (2009). Connexins, A Guide. New York: Springer. p. 574. ISBN 978-1-934115-46-6.
• Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature. 441 (7091): 315–21. doi:10.1038/nature04727. PMID 16710414.
• Common JE, O'Toole EA, Leigh IM, et al. (2006). "Clinical and genetic heterogeneity of erythrokeratoderma variabilis". J. Invest. Dermatol. 125 (5): 920–7. doi:10.1111/j.0022-202X.2005.23919.x. PMID 16297190.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
• Plantard L, Huber M, Macari F, et al. (2004). "Molecular interaction of connexin 30.3 and connexin 31 suggests a dominant-negative mechanism associated with erythrokeratodermia variabilis". Hum. Mol. Genet. 12 (24): 3287–94. doi:10.1093/hmg/ddg364. PMID 14583444.
• Richard G, Brown N, Rouan F, et al. (2003). "Genetic heterogeneity in erythrokeratodermia variabilis: novel mutations in the connexin gene GJB4 (Cx30.3) and genotype-phenotype correlations". J. Invest. Dermatol. 120 (4): 601–9. doi:10.1046/j.1523-1747.2003.12080.x. PMID 12648223.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• López-Bigas N, Melchionda S, Gasparini P, et al. (2002). "A common frameshift mutation and other variants in GJB4 (connexin 30.3): Analysis of hearing impairment families". Hum. Mutat. 19 (4): 458. doi:10.1002/humu.9023. PMID 11933201.
• Manthey D, Banach K, Desplantez T, et al. (2001). "Intracellular domains of mouse connexin26 and -30 affect diffusional and electrical properties of gap junction channels". J. Membr. Biol. 181 (2): 137–48. doi:10.1007/s00232-001-0017-1. PMID 11420600.
• Macari F, Landau M, Cousin P, et al. (2000). "Mutation in the gene for connexin 30.3 in a family with erythrokeratodermia variabilis". Am. J. Hum. Genet. 67 (5): 1296–301. doi:10.1016/S0002-9297(07)62957-7. PMC 1288569. PMID 11017804.
• Hennemann H, Dahl E, White JB, et al. (1992). "Two gap junction genes, connexin 31.1 and 30.3, are closely linked on mouse chromosome 4 and preferentially expressed in skin". J. Biol. Chem. 267 (24): 17225–33. PMID 1512260.
• Hacham-Zadeh S, Even-Paz Z (1978). "Erythrokeratodermia variabilis in a Jewish Kurdish family". Clin. Genet. 13 (5): 404–8. doi:10.1111/j.1399-0004.1978.tb04138.x. PMID 148984.