C3138 Sigma

Cathepsin D from bovine spleen

lyophilized powder, ≥5.0 units/mg protein

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Description

Unit Definition

One unit will produce an increase in A280 of 1.0 per min per mL at pH 3.0 at 37 °C measured as TCA-soluble products using hemoglobin as substrate (1 cm light path).

Physical form

Lyophilized powder containing citrate buffer salts

Biochem/physiol Actions

Cathepsin D is an endosomal-lysosomal aspartic protease implicated in breast cancer metastasis and Alzheimer’s disease. Lysosomal release of cathepsin D has been found to precede cytochrome c release and loss of membrane potential in apoptotic human foreskin fibroblasts. Cathepsin D levels in PC12 cells increase 12 to 24 hours after apoptosis is induced.

Price and Availability

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