Cathepsin D is a normal lysosomal protease that is expressed in all cells. It is an aspartyl protease with a pH optimum in the range of 3-5,and contains two N-linked oligosaccharides. Cathepsin D is synthesized as an inactive 52 kDa pro-enzyme. Activation involves the proteolytic removal of the 43 amino acid profragment and an internal cleavage to generate the two-chain form made up of 34 and 14 kDa subunits. Cathepsin D contains the mannose-6-phosphate lysosomal localization signal that targets the enzyme to the lysosomal compartment where it functions in the normal degradation of proteins. In certain tumor cells,Cathepsin D is abnormally processed and is secreted in its 52 kDa precursor form. Numerous clinical studies as well as in vitro evidence sμggest that cathepsin D plays an important role in malignant transformation and may be a useful prognostic indicator for breast cancer.
應(yīng)用類型
Western blot
免疫原
Human recombinant Cathepsin D
來源宿主
提供的抗組織蛋白酶D抗體Anti-Cathepsin D Antibody產(chǎn)品,該來源宿主查看產(chǎn)品說明書。