CTLA4 ELISA Kit

Catalog No. ABIN1672780

Mouse CTLA4 ELISA Kit, Colorimetric assay for quantification of Mouse CTLA4.

Quick Overview for CTLA4 ELISA Kit (ABIN1672780)

Target: CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))

Binding Specificity: AA 37-162

Reactivity: Mouse

Detection Method: Colorimetric

Method Type: Sandwich ELISA

Detection Range: 31.2 pg/mL - 2000 pg/mL

Application: ELISA

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

Product Details CTLA4 ELISA Kit

Minimum Detection Limit: 31.2 pg/mL

Purpose: Sandwich Mouse CTLA4 ELISA Kit to quantitate Mouse Ctla4 in cell culture supernatants, serum and plasma (heparin).

Analytical Method: Quantitative

Specificity: Expression system for standard: NS0
Immunogen sequence: A37-F162

Capture antibody and Detection antibody: monoclonal antibody from rat, 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%): 5.6%, 4.3%, 6.5%
Inter-Assay Precision (CV%): 6.1%, 4.8%, 6.6%

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

Target Details for CTLA4

Target: CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))

Alternative Name: CTLA4

Background:

Background: CTLA-4 (Cytotoxic T-Lymphocyte Antigen 4), also known as CD152 (Cluster of differentiation 152), is a protein receptor that down regulates the immune system. CTLA4 is a member of the immunoglobulin superfamily, which is expressed on the surface of Helper T cells and transmits an inhibitory signal to T cells. CTLA4 is similar to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 and CD86, also called B7-1 and B7-2 respectively, on antigen-presenting cells. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Blockade of CTLA4 expression in vitro augmented HIV-specific CD4-positive T-cell function.

Gene Full Name: cytotoxic T-lymphocyte-associated protein 4

Gene ID: 12477

UniProt: P09793

Pathways: Cancer Immune Checkpoints