title: Differences in expression patterns between mouse connexin-30.2 (Cx30.2) and its putative human orthologue, connexin-31.9.
abstract: A novel gap junction forming protein, mouse connexin-30.2 (Cx30.2) contains 278 amino acid residues, and is 79% identical to human Cx31.9 (GJA11). Northern analysis showed that Cx30.2 is ubiquitously expressed, most prominently in testis. Polyclonal antibodies against Cx30.2 detected a 30 kDa protein in cells overexpressing Cx30.2, and in mouse testis. Immunofluorescence showed that Cx30.2 was expressed in vascular smooth muscle, but also in cell types where Cx31.9 was not detected. These data demonstrate that Cx30.2 is a bona fide gene, and suggest that it is the orthologue of Cx31.9, but that it may have additional roles compared with Cx31.9.
authors.affiliation: Department of Cell Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. petern@scripps.edu
authors.forename: Peter A
authors.initials: PA
authors.lastname: Nielsen
authors.forename: Nalin M
authors.initials: NM
authors.lastname: Kumar
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D002460:Cell Line; D003001:Cloning, Molecular; D000075302:Connexin 30; D017630:Connexins / Q000737:chemistry / Q000235:genetics*; D004247:DNA; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D017386:Sequence Homology, Amino Acid
chemical_list: D000075302:Connexin 30; D017630:Connexins; C491020:GJB6 protein, human; C468137:GJD3 protein, human; C100629:Gjb6 protein, mouse; D004247:DNA