342001

Procathepsin K, Human, Recombinant, E. coli

Recombinant, human procathepsin K expressed in E. coli with a methionine residue inserted at amino acid 18 to create a new N-terminal initiation site.

• EC 号: 3.4.22.38 (BRENDA, IUBMB)
• 分類程式碼代碼: 12352202

属性

• 重組細胞: expressed in E. coli
• 品質等級: 100
• 化驗: ≥95% (SDS-PAGE)
• 形狀: liquid
• 比活性: ≥1000 mU/mg protein
• 製造商／商標名: Calbiochem^®
• 儲存條件: OK to freeze; avoid repeated freeze/thaw cycles
• 運輸包裝: wet ice
• 儲存溫度: −70°C

说明

一般說明

If the activated enzyme is not used immediately, it is recommended to add methyl methanthiosulfonate (1 mM final concentration MMTS).

Note: 1 mU = 1 milliunit.

Recombinant, human procathepsin K (amino acids 19-329) (GenBank target symbol = S79895, ACC No. P43235) expressed in E. coli with a methionine residue inserted at amino acid 18 to create a new N-terminal initiation site. Cathepsin K, a member of the papain superfamiliy of cysteine proteinases, plays an important role in osteoclast-mediated bone resorption and collagen degradation. Cathepsin K is synthesized as an inactive proenzyme that is converted to its mature, active form by proteolytic cleavage of the 99 amino acid propeptide domain. Inhibitors of cathepsin K include leupeptin (Cat. No. 108975) (IC₅₀ = 70 nM), E-64 (Cat. No. 324890) (IC₅₀ = 5 nM), and cystatin (Cat. No. 324891 or 324896). Requires activation prior to use.

Recombinant, human procathepsin K (amino acids 19-329) (GenBank target symbol = S79895, ACC No. P43235) expressed in E. coli with a methionine residue inserted at amino acid 18 to create a new N-terminal initiation site. Cathepsin K, a member of the papain superfamily of cysteine proteinases, plays an important role in osteoclast-mediated bone resorption and collagen degradation. Cathepsin K is synthesized as an inactive proenzyme that is converted to its mature, active form by proteolytic cleavage of the 99 amino acid propeptide domain. Inhibitors of cathepsin K include leupeptin (Cat. No. 108975) (IC₅₀ = 70 nM), E-64 (Cat. No. 324890) (IC₅₀ = 5 nM), and cystatin (Cat. No. 324891 or 324896). Requires activation prior to use.

包裝

Please refer to vial label for lot-specific concentration.

警告

Toxicity: Standard Handling (A)

單位定義

One unit is defined as the amount of enzyme that will hydrolyze 1 µmole benzyloxycarbonyl-phenylalanine-arginine-7-amido-4-methylcoumarin per min at 37°C, pH 5.5.

外觀

In 500 mM NaCl, 25 mM Tris, pH 8.0.

重構

Following initial thaw, aliquot and freeze (-70°C). Following activation the enzyme is unstable and should include MMTS for storage (see recommended reaction conditions for activation).

其他說明

McQueney, M., et al. 1997. J. Bio. Chem.272, 13955.
Bossard, M., et al. 1996. J. Biol. Chem.271, 12517.
Drake, F., et al. 1996. J. Biol. Chem.271, 12511.
Bromme, D. and Okamoto, K. 1995. Biol. Chem. Hoppe-Seyler376, 379.
Baron, R. 1989 Anat. Rec.224, 317.
Littlewood-Evans, A.J., et al. 1975. Cancer Res.57, 5386.
Nishimura, J.S. et al. 1975. Arch. Biochem. Biophys.170, 461.

法律資訊

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable