Merck, C8511-100UN, Cathepsin C from bovine spleen

Research Area: Cell Signaling Dipeptidyl peptidase I (DPPI), also known as cathepsin C, is an abundant lysosomal cysteine protease from the papain superfamily with a molecular weight of approximately 200 kDa. It is widely expressed in a variety of mammalian tissues, with the highest levels found in the lungs, kidneys, liver, and spleen, and relatively lower levels in the brain. DPPI is the only member of its family that is functional as a tetramer, consisting of four identical subunits, each composed of an N-terminal fragment, a heavy chain, and a light chain. It is identified as one of the multifaceted protease-processing machines, having been shown to function beyond its role as a non-specific lysosomal protease.