Cathepsin D ELISA Kit

Catalog No. ABIN921086

This Colorimetric ELISA kit is designed for the quantitative measurement of Human Cathepsin D. There is 1 publication available.

Quick Overview for Cathepsin D ELISA Kit (ABIN921086)

Target: Cathepsin D (CTSD)

Binding Specificity: AA 21-412

Reactivity: Human

Detection Method: Colorimetric

Method Type: Sandwich ELISA

Detection Range: 156 pg/mL - 10000 pg/mL

Application: ELISA

Sample Type: Cell Culture Supernatant, Cell Lysate, Plasma (EDTA), Plasma (heparin), Serum

Product Details Cathepsin D ELISA Kit

Minimum Detection Limit: 156 pg/mL

Purpose: Sandwich Human Cathepsin D ELISA Kit to quantitate Human CTSD in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).

Analytical Method: Quantitative

Specificity: Expression system for standard: NS0
Immunogen sequence: L21-L412

Capture antibody and Detection antibody: polyclonal antibody from goat, polyclonal antibody from goat

Cross-Reactivity (Details): There is no detectable cross-reactivity with other relevant proteins.

Sensitivity: < 10 pg/mL

Components:

1. Pre-coated 96-well strip microplate
2. Standard
3. Biotinylated antibody (100x)
4. Avidin-Biotin-Peroxidase Complex (100x)
5. Sample Diluent
6. Antibody Diluent
7. Avidin-Biotin-Peroxidase Diluent
8. Color Developing Reagent (TMB)
9. Stop Solution
10. Wash Buffer (25x)
11. Adhesive plate sealers

Material not included: Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer (optional). Pipettes and pipette tips capable of precisely dispensing 0.5 μL through 1 mL volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500 mL graduated cylinders. Test tubes for dilution.

Application Details

Application Notes: Before using Kit, spin tubes and bring down all components to bottom of tube. Duplicate well assay was recommended for both standard and sample testing.

Sample Volume: 100 μL

Plate: Pre-coated

Protocol: ELISA Kit is based on standard sandwich enzyme-linked immune-sorbent assay technology. An antibody has been precoated onto 96-well plates. Standards and test samples are added to the wells, a biotinylated detection antibody specific for target is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the target amount in sample captured in plate.

Assay Precision: Intra-Assay Precision (CV%): 7.2%, 5.6%, 6.6%
Inter-Assay Precision (CV%): 7.6%, 6.5%, 8.3%

Restrictions: For Research Use only

Handling

Handling Advice: Avoid multiple freeze-thaw cycles.

Storage: -20 °C,4 °C

Storage Comment: Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Expiry Date: 12 months

References for Cathepsin D ELISA Kit (ABIN921086)

Liu, Chen, Zhang, Tan, Wang: "Increased Cathepsin D Correlates with Clinical Parameters in Newly Diagnosed Type 2 Diabetes." in: Disease markers, Vol. 2017, pp. 5286408, (2018) (PubMed).

Target Details for Cathepsin D

Target: Cathepsin D (CTSD)

Alternative Name: CTSD

Background:

Background: Cathepsin D is a protein that in humans is encoded by the CTSD gene. This proteinase is a member of the peptidase C1 family, having a specificity similar to but narrower than that of pepsin A. It is mapped to 11p15.5. The cDNA encodes a 412-amino acid protein with 20 and 44 amino acids in a pre- and prosegment, respectively. Cathepsin D is one of the lysosomal proteinases. It is ubiquitously expressed and is involved in proteolytic degradation, cell invasion, and apoptosis. Mutations in this gene are involved in the pathogenesis of several diseases, including breast cancer and possibly Alzheimer disease and it has been considered as a breast cancer tumor marker.

Gene Full Name: cathepsin D

Gene ID: 1509

UniProt: P07339

Pathways: Peptide Hormone Metabolism