Coreceptor for SEMA3A and SEMA6A. Necessary for signaling by SEMA6A and class 3 semaphorins and subsequent remodeling of the cytoskeleton. Plays a role in axon guidance, invasive growth and cell migration. Class 3 semaphorins bind to a complex composed of a neuropilin and a plexin. The plexin modulates the affinity of the complex for specific semaphorins, and its cytoplasmic domain is required for the activation of down- stream signaling events in the cytoplasm. Homodimer. The PLXNA2 homodimer interacts with a SEMA6A homodimer, giving rise to a heterotetramer. Interacts directly with NRP1 and NRP2. Interacts with RND1. Detected in fetal brain. Belongs to the plexin family. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, integral; Receptor, misc.
Cellular Component: integral to plasma membrane; plasma membrane; intracellular
Molecular Function: protein binding; semaphorin receptor activity
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.