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Gap junctions are conduits that allow the direct cell-to-cell passage of small cytoplasmic molecules, including ions, metabolic intermediates, and second messengers, and thereby mediate intercellular metabolic and electrical communication. Gap junction channels consist of connexin protein subunits, which are encoded by a multigene family. GJBs (gap-junction proteins or connexins) play crucial functional roles associated with these channels. Defects in GJB3 have been linked to erythrokeratodermia variables (EKV) is an autosomal dominant genodermatosis characterized by transient figurate red patches or hyperkeratosis. Mutations in GJB2 have also been associated with genetically derived hearing impairments, including autosomal recessive nonsyndromic deafness.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: connexin 26; Connexin-26; Cx26; Gap junction beta-2 protein; gap junction protein, beta 2, 26kDa; mutant gap junction protein beta 2
Gene Aliases: CX26; DFNA3; DFNA3A; DFNB1; DFNB1A; GJB2; HID; KID; NSRD1; PPK
UniProt ID: (Human) P29033
Entrez Gene ID: (Human) 2706
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