Human CELSR3 Antibody

CELSR3 (Cadherin EGF LAG Seven-pass G-type Receptor 3; also cadherin family member 11/CDHF11, FMI1 and EGFL1) is a 355 kDa (predicted) member of the LN-7TM subfamily, GPCR 2 family of proteins. It is coexpressed with Fzd3 on postmigratory neurons of the developing DRG and cranial ganglia, and appears to serve as an axonal guidance cue. Mature human CELSR3 is 3280 amino acids (aa) in length (aa 33-3312). It is a highly complex 7-transmembrane protein that contains a 2508 aa extended N-terminal extracellular region (aa 33-2540) plus a 538 aa C-terminal cytoplasmic domain. The N-terminal region contains nine consecutive cadherin domains (aa 326-1265), followed by a mixture of eight EGF-like and three laminin-like domains, and one membrane-proximal GPS domain. There are two potential isoform variants. One shows a five aa insertion after Gly2158, while another possesses an alternative start site at Met276. Over aa 531-711, human CELSR3 shares 97% aa sequence identity with mouse CELSR3.