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Abcam's Cathepsin D Activity Assay Kit is a fluorescence-based assay that utilizes the preferred cathepsin-D substrate sequence GKPILFFRLK(Dnp)-D-R-NH2) labeled with MCA. Cell lysates or other samples that contain cathepsin-D will cleave the synthetic substrate to release fluorescence, which can then easily be quantified using a fluorometer or fluorescence plate reader at Ex/Em = 328/460 nm.
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Apoptosis can be mediated by mechanisms other than the traditional caspase-mediated cleavage cascade. There is growing recognition that alternative proteolytic enzymes such as the lysosomal cathepsin proteases may initiate or propagate proapoptotic signals. Cathepsins are lysosomal enzymes that are also used as sensitive markers in various toxicological investigations.
|CD Cell Lysis Buffer||WM||1 x 25ml|
|CD Reaction Buffer||NM||1 x 5ml|
|CD Substrate (1mM)||Brown||1 x 200µl|
Our Abpromise guarantee covers the use of ab65302 in the following tested applications.
|Functional Studies||Use at an assay dependent dilution.|
Cathepsin D levels were measured in standard control samples from ab119586; background signal subtracted (duplicates +/- SD).
Cathepsin D measured in mouse tissue lysates (mg of extracted protein), background signal subtracted (duplicates +/- SD).
Cathepsin D measured in cell lysates, background signal subtracted (duplicates +/- SD).