In direct ELISAs, less than 1% cross-reactivity with recombinant mouse (rm) Plexin A2 and rmPlexin A3 is observed. Reconstitute in sterile PBS to a final concentration of 0.2 mg/mL. Coreceptor for SEMA3A, SEMA3C, SEMA3F and SEMA6D. Necessary for signalin