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Recombinant Human Procathepsin K Protein

Cat.No.: CTSK-22H
Product Overview: Recombinant Human CTSK was expressed in Insect cells.
Description: Cathepsin K, a member of the papain family of cysteine proteases, acts upon proteins such as collagen, AL amyloid, kinin and elastin. It is a lysosomal protease expressed primarily in osteoclasts, but also in other cell types such as macrophages. It functions in bone remodeling and is implicated in disease states such as atherosclerosis, arthritis and pycnodysostosis.
Source: Insect cells
Species: Human
Form: Liquid. In 27.8µl 20mM sodium phosphate, pH 6.9, 500mM NaCl, 1 mM EDTA.
Bio-activity: To activate proenzyme, add 32.5mM NaOAc, pH 3.5, to 20% of procathepsin K volume (e.g., 5µl procathepsin K + 1µl 32.5mM NaOAc, pH 3.5), and incubate at room temperature for 25-30 minutes, or at +4 centigrade for approximately seven hours.
Molecular Mass: 35.3kDa
Purity: ≥95% (SDS-PAGE)
Applications: Useful tool to study enzyme kinetics, cleave target substrates and screen for inhibitors.
Notes: Avoid freeze/thaw cycles. After opening, prepare aliquots and store at -80 centigrade.
Stability: Use/Stability: -80 centigrade. After initial defrost, aliquot product into individual tubes and refreeze at -80 centigrade. Avoid repeated freeze/defrost cycles and extended periods unfrozen. This enzyme is stable when stored as received under the above conditions. Procedures such as dilution of the enzme followed by refreezing could lead to loss of activity.
Storage: Long Term Storage: -80 centigrade
Gene Name: CTSK cathepsin K [ Homo sapiens ]
Official Symbol: CTSK
Synonyms: CTSK; cathepsin K; cathepsin K (pycnodysostosis) , CTSO, CTSO2, PYCD; PKND; cathepsin O; cathepsin X; cathepsin O1; cathepsin O2; CTSO; PYCD; CTS02; CTSO1; CTSO2; MGC23107;
Gene ID: 1513
mRNA Refseq: NM_000396
Protein Refseq: NP_000387
MIM: 601105
UniProt ID: P43235
Chromosome Location: 1q21
Pathway: Immune System, organism-specific biosystem; Innate Immune System, organism-specific biosystem; Lysosome, organism-specific biosystem; Lysosome, conserved biosystem; Osteoclast Signaling, organism-specific biosystem; Osteoclast differentiation, organism-specific biosystem; Osteoclast differentiation, conserved biosystem;
Function: cysteine-type endopeptidase activity; cysteine-type peptidase activity; peptidase activity;

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Optional requirements on this protein    +Expand
C-fusion    N-fusion   Non-tagged
His    GST   Fc   Others
<1.0 eu/μg    <0.1 eu/μg   <0.01 eu/μg   Not required
Monomer Isolation    Dimer Isolation    Not required
>80% by SDS-PAGE    >90% by SDS-PAGE   >95% by SDS-PAGE   Others

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