Beta-2 microglobulin is a protein which is on the surface of white blood cells. The quantity of beta-2 microglobulin is an indicator of white blood cell levels.
Beta-2 microglobulin is a protein component of MHC Class I molecules, which are present on nearly every cell in the human body and are a major part of the immune system's defense against viruses.
Beta-2 microglobulin is a small protein that is found on different cells in the body. An increase in this protein, however, can be a sign of some types of cancer.
