Poliovirus Receptor Related Protein 1 (PVRL1)

PVRL1, or nectin-1, belongs to the nectin subfamily of immunoglobulin-like adhesion molecules that participate in Ca(2+)-independent cell-cell adhesion. Nectins bind to the actin cytoskeleton through the adaptor protein afadin (MLLT4) and are key components of adherens junctions (summary by Barron et al. (2008)).

Members of the immunoglobin (Ig) superfamily have been shown to serve as receptors for various viruses. The human poliovirus receptor (PVR) is an integral membrane protein with one V-like extracellular Ig domain, 2 C-like extracellular Ig domains, a transmembrane region, and an intracytoplasmic region. Lopez et al. (1995) isolated a cDNA for a poliovirus receptor related gene, which they symbolized PRR.