|Reactivity||Human, Mouse, Rat|
|Calculated MW||37822 Da|
|Positive Control||Western Blot: Jurkat cell lysate, 3T3 cell lysate, rat kidney lysate, recombinant protein|
|Application & Usage||Western blot: 1-4 µg|
|Other Names||CTSB, CPSB|
|Formulation||100 µg (0.5 mg/ml) of antibody in PBS pH 7.2 containing 0.01 % BSA, 0.01 % thimerosal, and 50 % glycerol.|
|Handling||The antibody solution should be gently mixed before use.|
|Reconstitution & Storage||-20 °C|
|Precautions||Procathepsin B Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis.|
|Cellular Location||Lysosome. Melanosome. Secreted, extracellular space. Note=Identified by mass spectrometry in melanosome fractions from stage I to stage IV|
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Provided below are standard protocols that you may find useful for product applications.
Cathepsin B is a normal lysosomal cysteine proteinase that is expressed in all cells. It is synthesized as an inactive 43 kDa pro-enzyme which, by removal of a 62 amino acid propeptide, is activated to the single-chain form of 31 kDa or the two-chain form (25 and 5 kDa subunits). Matured cathepsin B is normally localized in the lysosomes where it functions in protein turnover. Cathepsin B is also shown capable of degrading extracellular matrix proteins. Elevated levels of cathepsin B correlate with malignancy suggesting that this enzyme may be a useful prognostic marker for several types of human cancers.
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