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.
Applications:
Suitable for use in ELISA and Western Blot. Other applications not tested.
Recommended Dilution:
ELISA: 1-5ug/ml
Western Blot: 0.1-5ug/ml
Optimal dilutions to be determined by the researcher.
Recommended Secondary Antibodies:
I1906 IgY, Chicken Pab Rb x Ch
I1906-10 IgY, Chicken (HRP) Rb x Ch
I1906-12 IgY, Chicken (FITC) Rb x Ch
I1906-14 IgY, Chicken (AP) Rb x Ch
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months 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.
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