Description
Product Characteristics: Cav1b (voltage-dependent L-type calcium channel alpha-1 subunit isoform b) mediates entry of calcium ions into excitable cells. Cav1b contains multiple Ion_trans domains which are Ion transport protein and also contains transmembrane domain I segment 1,2,3,4,5,6 helix, transmembrane domain II segment 1,2,3,4,5,6 helix, transmembrane domain III segment 1,2,3,4,5,6 helix, transmembrane domain IV segment 1,2,3,4,5,6 helix, which are voltage sensor and transmembrane domain I P-loop, transmembrane domain II P-loop, transmembrane domain III P-loop, which are lining of ion-selective pore, as well as Glu(-) residue of the selectivity filter and III cytoplasmic linker, II-III cytoplasmic linker and III-IV cytoplasmic linker.
Target Information: The scaffolding protein encoded by this gene is the main component of the caveolae plasma membranes found in most cell types. The protein links integrin subunits to the tyrosine kinase FYN, an initiating step in coupling integrins to the Ras-ERK pathway and promoting cell cycle progression. The gene is a tumor suppressor gene candidate and a negative regulator of the Ras-p42/44 mitogen-activated kinase cascade. Caveolin 1 and caveolin 2 are located next to each other on chromosome 7 and express colocalizing proteins that form a stable hetero-oligomeric complex. Mutations in this gene have been associated with Berardinelli-Seip congenital lipodystrophy. Alternatively spliced transcripts encode alpha and beta isoforms of caveolin 1.[provided by RefSeq, Mar 2010]