Cathepsin G

Cathepsins are a group of intracellular proteolytic enzymes located within the lysosomes. On the basis of the specificity towards their substrates, the cathepsins have been assigned the names: Cathepsins A, B, C, D, E, G H and L. Cathepsin G is a serine protease, it consists of a single polypeptide with a MW of 30kD as determined by SDS-PAGE. Its substrates are collagen and proteoglycans. Cathepsins are localized primarily in lysosomes or endosomes, but translocated to the cytosol during apoptosis. The translocation allows these proteases to interact with caspases or other apoptosis signaling mechanisms. Studies show that cathepsins cleave certain caspases, and caspase inhibitors can inhibit cathepsin activity in vitro.\n\nUnit Definition:\nOne unit of activity is the amount of enzyme that hydrolyzes one micromole of Suc-ala-ala-pro-phe-pNA (1mM) per minute at 25 degrees C in 160mM Tris HCl, pH 7.4, 1.6M sodium chloride.\n\nStorage and Stability: \nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile buffer. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Prices direct from United States Biological

Quick response times

Exclusive Biosave savings/discounts