Human Cathepsin D Biotinylated Antibody

Catalog #: BAF1014 Datasheet / COA / SDS

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BAF1014

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Human Cathepsin D Biotinylated Antibody Summary

Species Reactivity

Human

Specificity

Detects human Cathepsin D in Western blots. In Western blots, approximately 20% cross-reactivity with recombinant mouse Cathepsin D is observed, and less than 1% cross-reactivity with recombinant human (rh) Cathepsin A, rhCathepsin B, rhCathepsin C, rhCathepsin L, and rhCathepsin X/Z/P is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

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 BSA as a carrier protein.

Label

Biotin

Applications

Recommended Concentration

Sample

Western Blot

0.1 µg/mL

Recombinant Human Cathepsin D (Catalog # 1014-AS)

Immunohistochemistry

5-15 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.

Scientific Data

Immunohistochemistry

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Cathepsin D in Human Lung. Cathepsin D was detected in immersion fixed paraffin-embedded sections of human lung array using Goat Anti-Human Cathepsin D Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF1014) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling if primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.

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 (residues 1‑18), a propeptide (residues 19-64), and a mature chain (residues 65‑412) (2‑4). The mature chain can be processed further to the light (residues 65‑161) and heavy (residues 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

Conner et al. in Handbook of Proteolytic Enzymes Barrett (1998) Academic Press, San Diego, p. 828.
Faust, et al. (1985) Proc. Natl. Acad. Sci. USA 82:4910.
Westley and May (1987) Nucl. Acid Res. 15:3773.
Redecker, et al. (1991) DNA Cell Biol. 10:423.
Rochefort, et al. (2000) Clin. Chim. Acta. 291:157.
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