Human C2CD3 Antibody

C2CD3 (C2 domain-containing protein 3) is a 260 kDa (predicted) intracellular protein that apparently belongs to no known structural protein family. It is ubiquitously expressed, and plays a role in cilia formation and associated hedgehog signaling. In particular, C2CD3 is localized to the basal body, and appears to promote Gli3 proteolytic processing into a truncated transcriptional repressor. Human C2CD3 is 2353 amino acids (aa) in length. It contains two C2 domains (aa 1163-1289 and 1622-1728) that participate in Ca⁺⁺-dependent protein-lipid and protein-protein interactions. Three utilized phosphorylation sites exist at Thr1130, Ser2114 and Ser 2132. There are multiple potential splice variants. One possesses a three aa substitution for aa 1961-2353, a second shows a deletion of aa 1364-1382 coupled to a 27 aa substitution for aa 1881-2353, a third contains a seven aa substitution for aa 1961-2353, and a fourth contains a 34 aa substitution for aa 1888-2353. Over aa 1-109, human C2CD3 shares 94% aa identity with mouse C2CD3.