Anti-Connexin 43/GJA1 Antibody Picoband®

Connexin 43 (Cx43), also called GAP Junction Protein, alpha-1 (GJA1) . Connexin 43 is a member of the connexin gene family which abundantly expressed in the heart and liver and was mapped to 6q21-q23.2. Connexin43, the major protein of gap junctions in the heart, is targeted by several protein kinases that regulate myocardial cell-cell coupling. Mutations in the connexin43 gap-junction gene, which lead to abnormally regulated cell-cell communication, are associated with visceroatrial heterotaxia. Cx43 must also play a critical role in the physiology of hearing, presumably by participating in the recycling of potassium to the cochlear endolymph.

ATPases, Cancer, Metabolism, Neuroscience, Neurotransmission, Plasma Membrane, Protein Trafficking, Secretory Vesicles, Signal Transduction, Vesicle Transport

Gap junction protein that acts as a regulator of bladder capacity. A gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell. May play a critical role in the physiology of hearing by participating in the recycling of potassium to the cochlear endolymph. Negative regulator of bladder functional capacity: acts by enhancing intercellular electrical and chemical transmission, thus sensitizing bladder muscles to cholinergic neural stimuli and causing them to contract. May play a role in cell growth inhibition through the regulation of NOV expression and localization. Plays an essential role in gap junction communication in the ventricles.

1. Britz-Cunningham, S. H.; Shah, M. M.; Zuppan, C. W.; Fletcher, W. H. : Mutations of the connexin43 gap-junction gene in patients with heart malformations and defects of laterality. New Eng. J. Med. 332: 1323-1329, 1995. 2. Liu, X. Z.; Xia, X. J.; Adams, J.; Chen, Z. Y.; Welch, K. O.; Tekin, M.; Ouyang, X. M.; Kristiansen, A.; Pandya, A.; Balkany, T.; Arnos, K. S.; Nance, W. E. : Mutations in GJA1 (connexin 43) are associated with non-syndromic autosomal recessive deafness. Hum. Molec. Genet. 10: 2945-2951, 2001.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.