CADM3 polyclonal antibody

Immunoglobulin superfamily member 4B (Cell adhesion molecule 3, Nectinlike protein 1) is a nectin family gene product that contains 2 Ig-like C2-type (immunoglobulin-like) domains and an Ig-like V-type (immunoglobulin-like) domain. IGSF4B is a single-pass type I membrane protein that localizes to cellcell interacting sites along the plasma membrane. IGSF4B functions as a cell adhesion molecule at cell-cell junctions. IGSF4B can be found as a homodimer and has a dual calcium-independent adhesion function; a homophilic cell-cell interaction and a heterophilic cell-cell interaction involving IGSF4, Nectin 1 and Nectin 3. IGSF4B may also interact with EPB41L1 which has a potential for regulating structure or function of cell-cell junctions by similarity. Isoform 1 is expressed in adult and fetal brain. Isoform 2 is highly expressed in the cerebellum but is also weakly expressed in placenta. IGSF4B has been found to be markedly over-expressed in glioma cell lines and prostate cancer cell lines.