Ci =
targets heart
Me =
targets melanoma
Tu =
targets tumor
Pr=
targets prostate tumor
Go =
targets ovarian tumor
Ii=
targets immune system
U =
human source
O=
mouse source
A =
rat source
E =
hamster source
Xi =
part mouse, part human source
Zu =
fully humanized
Xizu =
small parts of mouse proteins attached to human proteins
chimeric +humanized