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Key Documents

C0150

Sigma-Aldrich

Cathepsin B from human placenta

lyophilized powder, ≥5 units/mg protein

Sinônimo(s):

Cathepsin B1

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About This Item

Número CAS:
Número da licença da enzima:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54

forma

lyophilized powder

Nível de qualidade

atividade específica

≥5 units/mg protein

peso molecular

24.5 kDa

composição

Protein, ~50% Lowry

solubilidade

H2O: soluble 1.0 mg/mL, clear

nº de adesão UniProt

temperatura de armazenamento

−20°C

Informações sobre genes

human ... CTSB(1508)

Descrição geral

Cathepsin B is encoded by the gene CTSB and is located in the human chromosome at 8p23.1. Cathepsin B is a lysosomal proteolytic enzyme of cysteine protease family. It is present in all mammalian cells. It is essential for the intracellular protein turnover.

Aplicação

Cathepsin B from human placenta has been used in the in vitro digestion of modified myelin oligodendrocyte glycoprotein (MOG). It has also been used in determining the effect of cysteine protease inhibitors.
Cathepsin B is a lysosomal cysteine proteinase which hydrolyzes proteins with a broad specificity for peptide bonds. Cathepsin B may be a useful tool in Alzheimer′s research, as it may have a role in the natural defense against the disease . Cathepsin B may be used to cleave procaspase 1 and procaspase 11, and to induce apoptosis in digitonin-permeabilized cells.

Ações bioquímicas/fisiológicas

Cathepsin B preferentially cleaves at the caboxyl side of Arg-Arg bonds in small molecule substrates. Cathepsin B has been shown to degrade β-amyloid precursor protein into harmless fragments . Cathepsin B inhibition has been shown to limit bone metastasis in breast cancer .
Cathepsin B has been found to cleave procaspase 1 and procaspase 11 and to induce apoptosis in digitonin-permeabilized cells. Translocation of cathepsin B from the cytoplasm to the nucleus contributes to bile salt induced apoptosis of rat hepatocytes. Levels of cathepsin B in PC12 cells significantly decrease 12 to 24 hours after apoptosis is induced.

Definição da unidade

One unit will liberate 1 nanomole of 7-amino-4-methylcoumarin from Z-Arg-Arg 7-amido-4-methylcoumarin per min at pH 6.0 at 40 °C.

forma física

Lyophilized powder containing phosphate buffer salts

Nota de preparo

Dissolves in water at 1 mg/mL concentration, yieliding a clear solution.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Cathepsins B, H, L and cysteine protease inhibitors in malignant prostate cell lines, primary cultured prostatic cells and prostatic tissue
Friedrich B, et al.
European Journal of Cancer, 35(1), 138-144 (1999)
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Molecules (Basel, Switzerland), 25(18) (2020-09-24)
Cyclopeptidic chemotherapeutic prodrugs (cPCPs) are macromolecular protease-sensitive doxorubicin (DOX) prodrugs synthesized from a cyclodecapeptidic scaffold, termed Regioselectively Addressable Functionalized Template (RAFT). In order to increase the chemotherapeutic potential of DOX and limit its toxicity, we used a Cathepsin B (Cat
Mixed gastric carcinomas show similar chromosomal aberrations in both their diffuse and glandular components.
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Scavenger Receptor A Mediates the Clearance and Immunological Screening of MDA-Modified Antigen by M2-Type Macrophages
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Alzheimer's disease (AD) may result from the accumulation of amyloid-beta (Abeta) peptides in the brain. The cysteine protease cathepsin B (CatB) is associated with amyloid plaques in AD brains and has been suspected to increase Abeta production. Here, we demonstrate

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