|Calculated MW||35.9 kDa|
|Other Names||CTSK, CTSO, CTSO3|
|Results||The specific activity is >1000 mU/mg (1U = 1 µmole/min/mg) as measured by Cathepsin K Activity Assay Kit|
|Storage||-80°C; 1 mg/ml solution in 25 mM Na2HPO4 and 500 mM NaCl (pH 7.0).|
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Provided below are standard protocols that you may find useful for product applications.
Cathepsin K, a member of the papain cysteine proteinase family is the predominant proteinase responsible for the resorption of the bone matrix. Cathepsin cleaves proteins such as collagen type I, collagen type II and osteonectin, thereby playing a role in bone remodeling and resorption in osteoporosis, osteolytic bone metastasis and rheumatoid arthritis (Bromme and Okamoto, 1995; Drake, F. et al 1996; Bossard et al, 1996). Cathepsin K is synthesized as an inactive proenzyme (35.1 kDa) that is converted to its mature active form (23.6 kDa) by proteolytic cleavage of its 99-amino-acid propeptide domain. The in-vitro processing of procathepsin K to mature cathepsin K is autocatalytic.
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