Figure 1.
RAG1 is expressed in DN T cells in RYAC transgenic mice. (A) Diagrammatic representation of RYAC an 80-kb YAC containing the RAG genes, 12 kb of genomic DNA 5′ of RAG2, and 33 kb of genomic DNA 5′ of RAG1. (B) RAG1 expression in FACS® purified thymocyte subpopulations as measured by RT-PCR. HPRT, CD3ε, or GAPDH were used as loading controls for normalizing mRNA. The data shown are representative of five experiments. cDNA dilutions are indicated. WT, wild-type.