Human CellExp™ Cathepsin B, human recombinant

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SKU:
7408-10
£135.37
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Description

Human CellExp™ Cathepsin B, human recombinant is available at Gentaur for Next week delivery.

Participates in intracellular degradation and turnover of proteins

Biomolecule/Target: Cathepsin B

Alternates names: CTSB, CPSB, APPS

Synonyms: CTSB, CPSB, APPS

Background Information: Cathepsin B (CTSB) also known as APP secretase (APPS) and CPSB, is an enzymatic protein belonging to the peptidase C1 family. Cathepsin B / CTSB is synthesized as a preproenzyme. Following removal of the signal peptide, the inactive proenzyme undergoes further modifications including removal of the pro region to result in the active enzyme. The catalytic activity of Cathepsin B / APPS contains: Hydrolysis of proteins with broad specificity for peptide bonds; preferentially cleaves -Arg-Arg-|-Xaa bonds in small molecule substrates (thus differing from cathepsin L); In addition to being an endopeptidase, shows peptidyl-dipeptidase activity, liberating C-terminal dipeptides. As a thiol protease, cathepsin B / CPSB is believed to participate in intracellular degradation and turnover of proteins and has also been implicated in tumor invasion and metastasis. Overexpression of cathepsin B has been associated with esophageal adenocarcinoma and other tumors.

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

NCBI Gene Symbol: CTSB

Gene ID: 1508

NCBI Accession: P07858

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Additional Information

Size:
10 μg
Country of Manufacturing Origin:
USA
Country of Animal Origin:
USA
Gene Source:
Human
Recombinant:
Yes
Source:
HEK293 cells
Purity by SDS-PAGE:
≥95%
Assay:
SDS-PAGE
Purity:
N/A
Assay 2:
N/A
Endotoxin Level:
<1 EU/μg by LAL method
Activity (Specifications/test method):
N/A
Biological activity:
Measured by its ability to cleave the fluorogenic peptide substrate Z-LR-AMC. Measured in 100 μl reaction mixture containing 25 mM MES, pH 5.0, 0.01 µg rhCathepsin B, and 10 µM reaction substrate. The specific activity is >2800 pmol/min/µg.
Results:
Measured by its ability to cleave the fluorogenic peptide substrate Z-LR-AMC. Measured in 100 μl reaction mixture containing 25 mM MES, pH 5.0, 0.01 µg rhCathepsin B, and 10 µM reaction substrate. The specific activity is >2800 pmol/min/µg.
Molecular Weight:
This protein is fused with a 6×His tag at the C-terminus, has a calculated MW of 36.7 kDa (Pro) and 29 kDa (Mature). The predicted N-terminus is Arg18 (pro) or Phe74 (mature). DTT-reduced Protein migrates as 43 kDa and 34 kDa due to glycosylation.
Storage Temperature:
-20°C
Shelf Life:
12 months
Concentration:
N/A
Appearance:
Lyophilized
Handling:
Centrifuge the vial prior to opening.
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