Alias:
C4; RG; C4S; CO4; C4A2; C4A3; C4A4; C4A6; C4AD; CPAMD2; acidic C4; complement C4-C4A anaphylatoxin; Rodgers form of C4; acidic complement C4; MHC class III region complement; complement C4A (Rodgers blood group); complement C4A (Chido/Rodgers blood group); complement component 4A (Rodgers blood group