CAPZA2 encodes the human gene, Capping protein (actin filament) muscle Z-line, alpha 2. It may also be known as: F-actin-capping protein subunit alpha-2; CapZ alpha-2; F-actin capping protein alpha-2 subunit; CAPPA2. The encoded protein has an amino acid length of 286 and a mass of 32.9 kDa. Other isoforms may exist. CAPZA2 is a member of the F-actin-capping protein alpha subunit family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Frog, Chicken.