Mouse MR1 Antibody (909417)

The Major Histocompatibility Complex (MHC) class I-related gene, MR1, considered a non-classical MHC class IA gene which is encoded outside the MHC region. The MR1 is responsible for activation of Mucosal-associated Invariant T (MAIT) cells expressing semi-invariant T cell receptors in the presence of bacteria. MR1 is a highly evolutionary conserved protein with regard to alpha 1 and alpha 2 domains corresponding to the peptide-binding domains of classical MHC class I molecules which show about 90% amino acid identity between human and mouse. MR1 protein can associate with beta 2-microglobulin, which indicates that this is a typical class I heterodimer composed of a heavy and a light chain resembling the classical MHC class I molecules.