Human Cathepsin D Antibody

Catalog # Availability Size / Price Qty
MAB10141-100
MAB10141-SP
Cathepsin D in U937 Human Cell Line.
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Human Cathepsin D Antibody Summary

Species Reactivity
Human
Specificity
Detects human Cathepsin D in direct ELISAs.
Source
Monoclonal Mouse IgG2B Clone # 984824
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Cathepsin D
Leu21-Leu412
Accession # P07339
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Immunocytochemistry
8-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Immunocytochemistry Cathepsin D antibody in U937 Human Cell Line by Immunocytochemistry (ICC). View Larger

Cathepsin D in U937 Human Cell Line. Cathepsin D was detected in immersion fixed U937 human histiocytic lymphoma cell line using Mouse Anti-Human Cathepsin D Monoclonal Antibody (Catalog # MAB10141) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Cathepsin D

Cathepsin D is a lysosomal aspartic protease of the pepsin family (1). Human cathepsin D is synthesized as a precursor protein, consisting of a signal peptide (aa 1‑18), a propeptide (aa 19-64), and a mature chain (aa 65‑412) (2‑4). The mature chain can be processed further to the light (aa 65‑161) and heavy (aa 169‑412) chains. 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 are responsible for the generation of angiostatin, a potent endogeneous inhibitor of angiogenesis (6).

References
  1. Conner et al. in Handbook of Proteolytic Enzymes Barrett (1998) Academic Press, San Diego, p. 828.
  2. Faust, et al. (1985) Proc. Natl. Acad. Sci. USA 82:4910.
  3. Westley and May (1987) Nucl. Acid Res. 15:3773.
  4. Redecker, et al. (1991) DNA Cell Biol. 10:423.
  5. Rochefort, et al. (2000) Clin. Chim. Acta. 291:157.
  6. Tsukuba, et al. (2000) Mol. Cells 10:601.
Entrez Gene IDs
1509 (Human); 13033 (Mouse)
Alternate Names
cathepsin D (lysosomal aspartyl protease); Cathepsin D; CPSD; CTSD; EC 3.4.23; EC 3.4.23.5; lysosomal aspartyl peptidase; lysosomal aspartyl protease; MGC2311; neuronal 10

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Human Cathepsin D Antibody
By Anonymous on 12/29/2021
Application: ICC/IF Sample Tested: U937 Human Cell Line Species: Human