HLA-DM Protein

HLA-DM (Human Leukocyte Antigen DM) is a critical protein involved in the immune system, specifically in the process of antigen presentation. It acts as a molecular chaperone within the endosomal compartment of antigen-presenting cells where it facilitates the loading of peptides onto MHC class II molecules by catalyzing the release of the Class II-associated invariant chain peptide (CLIP).

Research-grade HLA-DM proteins are produced globally by biotechnology and life sciences companies for use in structural biology and immunology studies. Notable early structural research on this protein was conducted at Harvard University's Howard Hughes Medical Institute. Today, it is manufactured by various scientific suppliers (such as Thermo Fisher, R&D Systems, and Abcam) using recombinant expression systems including insect cells (like Drosophila hydei) or mammalian cell lines.