PCC transgenic mice are viable and fertile. Pigeon cytochrome c was engineered for expression in lymphoid tissues of transgenic mice in two forms: one in which it is expressed as a type II plasma membrane protein (mPCC), and a second in which it was targeted to the mitochondria after cytoplasmic synthesis (ePCC). This strain carries the mPCC construct. (For mice carrying the ePCC construct, see strain 003221.) PCC is expressed in thymus, spleen and LPS stimulated B cells in both strains of mice. mRNA expression levels are higher in mPCC mice than in ePCC mice. However, tolerance is induced in the thymus of both strains, regardless of antigen compartmentation.

These mPCC mice express a transgene containing pigeon cytochrome c engineered for lymphoid tissue expression as a type II plasma membrane protein.



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