A rat antigen system parallel to the mouse theta system has been described All rat strains tested expressed an antigen cross-reactive with the θ-AKR specificity of mice while none cross-reacted strongly with θ-C3H. The rat antigen may be demonstrated by either absorption or direct complement-mediated killing of rat thymocytes. Patterns of organ distribution and developmental appearance in the nervous system of rats also parallel those previously reported for theta in mice.

This content is only available as a PDF.