What is "serglycin"

n. (context protein English) An intracellular proteoglycan found in the storage granules of connective tissue mast cells

Serglycin, also known as hematopoetic proteoglycan core protein or secretory granule proteoglycan core protein, is a protein that in humans is encoded by the SRGN gene. It is primarily expressed in hematopoietic cells and endothelial cells.