Genetic control of MHC class II expression.

Ting, Jenny Pan-Yun; Trowsdale, John · Cell · 2002

basic_science · Level V

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Abstract

The presentation of peptides to T cells by MHC class II molecules is of critical importance in specific recognition by the immune system. Expression of class II molecules is exquisitely controlled at the transcriptional level. A large set of proteins interact with the promoters of class II genes. The most important of these is CIITA, a master controller that orchestrates expression but does not bind directly to the promoter. The transcriptosome complex formed at class II promoters is a model for induction of gene expression.

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