ARPC3 encodes the human gene, Actin related protein 2/3 complex subunit 3. It may also be known as: Actin-related protein 2/3 complex subunit 3; Arp2/3 complex 21 kDa subunit; p21-ARC; ARC21; actin related protein 2/3 complex, subunit 3, 21kDa. The encoded protein has an amino acid length of 178 and a mass of 20.5 kDa. ARPC3 is a member of the ARPC3 family. Homologs of this gene exist in other organisms, including: Frog.