Cathepsin D Antibody (204712) [Unconjugated] Summary
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Cathepsin D Ile21-Leu410 Accession # P18242
Specificity
Detects both the pro and active forms of mouse Cathepsin D in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant human Cathepsin D or recombinant mouse Cathepsin E is observed.
Source
N/A
Isotype
IgG2a
Clonality
Monoclonal
Host
Rat
Gene
CTSD
Purity Statement
Protein A or G purified from hybridoma culture supernatant
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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.
Buffer
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.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Cathepsin D Antibody (204712) [Unconjugated]
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
Background
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).
Diedrich, et al. (1990) Nucl. Acid Res. 18:7184.
Grusby, et al. (1990) Nucl. Acid Res. 18:4008.
Hetman, et al. (1994) DNA Cell Biol. 13:419.
Conner (2004) in Handbook of Proteolytic Enzymes (Barrett, et al. eds) Elsevier Academic Press, San Diego, p. 43.
Rochefort, et al. (2000) Clin. Chim. Acta. 291:157.
Tsukuba, et al. (2000) Mol. Cells 10:601.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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