Nectin 3 Polyclonal Antibody, Invitrogen™

Description

• Nectin 3 / CD113 Polyclonal Antibody detects endogenous levels of Nectin 3 / CD113 protein
• Nectin-3 is a 83 kDa type I transmembrane glycoprotein
• Nectin, originally isolated as poliovirus receptor-related protein (PRR), is a cell-cell adhesion molecule of the immunoglobulin supergene family
• Nectins are calciumindependent immunoglobulin-like cell-cell adhesion molecules consisting of four members, nectin 1-4
• Nectins homophilically and heterophilically trans-interact to form a variety of cell-cell junctions, including cadherin-based adherens junctions in epithelial cells and fibroblasts in culture, synaptic junctions in neurons, and Sertoli cell-spermatid junctions in testis, in cooperation with, or independently of, cadherins
• Both nectin-2 and nectin-3 are ubiquitously expressed, whereas nectin-1 is abundantly expressed in brain
• Nectin-2 and -3 are expressed in cells where cadherin is not expressed, such as blood cells and spermatids
• All members of the nectin family have two or three splice variants
• For nectin-3, three isoforms exist: nectin-3 alpha, -3 beta and -3 gamma, of which nectin-3 alpha is the largest
• Nectin-3, also known as PRR3, is a transmembrane protein that is predominantly expressed in testis and placental tissues as well in many cell lines
• Nectin interacts in vivo with both long and short isoforms of afadin, an actin binding protein, at cadherin-based cell-cell adherence junctions in various tissues and cell lines
• Furthermore, the ectodomains of nectin-3 and CD155 (Poliovirus Receptor) have shown strong affinity to each other
• Injection of antibody 103-A1 into lumen of seminiferous tubules leads to disruption of the actin filaments in Sertoli cells at the Sertoli-maturing spermatid ectoplasmic specialization and exfoliation of maturing spermatids form the seminiferous epithelium.