Purity ~90% (SDS-PAGE). Binds F-actin and nucleates actin assembly. Major high affinity link between the plasma membrane and the cortical actin network. Source: Recombinant protein corresponding to aa23-118 from dictyostelium discoideum Ponticulin, fused to His-Tag at N-terminal, expressed in E. coli. Molecular Weight: ~13.9kD AA