Reacts with human leukocyte antigen-DM (HLA-DM), a non-classical MHC class II molecule expressed in the cytoplasm of antigen presenting cells (APC). HLA-DM is composed of alpha and beta subunits which form a similar structure as the classical class II molecules. HLA-DM catalyzes the dissociation of CLIP from MHC class II-CLIP complexes in vitro and facilitates the binding of antigenic peptides. It also prevents self-antigens from becoming stably complexed with class II molecules and being presented to T cells. Profile of intracellular staining of peripheral blood lymphocytes analyzed on a FACScan . Profile of intracellular staining of peripheral blood monocytes analyzed on a FACScan .
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