Figure 2. Expression of Ighg3 and Ighm persists in the CNS and Rag1^−/− mice.

(A, B) In situ hybridization using an antisense probe directed against Ighg3 on spinal cord sections of adult wild-type (A) and Rag1^−/− (B) mice. (C, D, E, F) In situ hybridization using an antisense probe directed against Ighm on spinal cord sections (C, D) and forebrain sections (E, F) of adult wild-type (C, E) and Rag1^−/− (D, F) mice. (A, B, C, D, E, F) Scale bar: (A, B, C, D) 100 µm, (E, F) 500 µm.