CD32a, or Fc fragment of IgG, low affinity IIa, receptor (CD32), is a human gene encoded by FCGR2A. It may also be known as: Low affinity immunoglobulin gamma Fc region receptor II-a; IgG Fc receptor II-a; Fc-gamma RII-a; Fc-gamma-RIIa; FcRII-a; Immunoglobulin G Fc receptor II; CD32A; CDw32; FCGR2; FCGR2A1; FcGR. The encoded protein has an amino acid length of 317 and a mass of 35.0 kDa. Other isoforms may exist. Homologs of this gene exist in other organisms, including: Mouse, Rat.