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Recombinant Mouse Cathepsin D Protein, CF

Bio-Techne includes R&D Systems | Catalog # 1029-AS

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1029-AS-010

Key Product Details

Source

NS0

Accession #

Structure / Form

Pro form

Conjugate

Unconjugated

Applications

Enzyme Activity

Product Specifications

Source

Mouse myeloma cell line, NS0-derived mouse Cathepsin D protein
Ile21-Leu410, with a C-terminal 10-His tag

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ile21

Predicted Molecular Mass

44 kDa

SDS-PAGE

52 kDa, reducing conditions

Activity

Measured by its ability to cleave the fluorogenic peptide substrate, Mca-PLGL-Dpa-AR-NH2 (Catalog # ES001).
The specific activity is >600 pmol/min/µg, as measured under described conditions.

Formulation, Preparation and Storage

1029-AS
Formulation Lyophilized from a 0.2 μm filtered solution in MES and NaCl.
Reconstitution
Reconstitute at 100 μg/mL in sterile, deionized water.

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Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Cathepsin D

Cathepsin D is a lysosomal aspartic protease of the pepsin family (4). Mouse Cathepsin D is synthesized as a precursor protein, consisting of a signal peptide (residues 1‑20), a propeptide (residues 21‑64), and a mature chain (residues 65‑410) (1‑3). It is expressed in most cells and overexpressed in breast cancer cells (5). It is a major enzyme in protein degradation in lysosomes, and also involved in the presentation of antigenic peptides. Mice deficient in this enzyme showed a progressive atrophy of the intestinal mucosa, a massive destruction of lymphoid organs, and a profound neuronal ceroid lipofucinosis, indicating that Cathepsin D is essential for proteolysis of proteins regulating cell growth and tissue homeostasis (6). Cathepsin D secreted from human prostate carcinoma cells is responsible for the generation of angiostatin, a potent endogeneous inhibitor of angiogenesis (6).

References

  1. Diedrich, et al. (1990) Nucl. Acid Res. 18:7184.
  2. Grusby, et al. (1990) Nucl. Acid Res. 18:4008. 
  3. Hetman, et al. (1994) DNA Cell Biol. 13:419.
  4. Conner (2004) in Handbook of Proteolytic Enzymes (Barrett, et al. eds) Elsevier Academic Press, San Diego, p. 43.
  5. Rochefort, et al. (2000) Clin. Chim. Acta. 291:157.
  6. Tsukuba, et al. (2000) Mol. Cells 10:601.

Alternate Names

CTSD

Entrez Gene IDs

1509 (Human); 13033 (Mouse)

Gene Symbol

CTSD

UniProt

Additional Cathepsin D Products

Product Documents for Recombinant Mouse Cathepsin D Protein, CF

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Mouse Cathepsin D Protein, CF

For research use only

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