CTLA4 ELISA Kit

Catalog No. ABIN5653533

This Colorimetric ELISA kit is designed for the quantitative measurement of Human CTLA4.

Quick Overview for CTLA4 ELISA Kit (ABIN5653533)

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

Reactivity: Human

Detection Method: Colorimetric

Method Type: Sandwich ELISA

Detection Range: 0.156 ng/mL - 10 ng/mL

Application: ELISA

Sample Type: Cell Culture Supernatant, Cell Lysate, Plasma, Serum, Tissue Homogenate

Product Details CTLA4 ELISA Kit

Minimum Detection Limit: 0.156 ng/mL

Purpose: Human Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4) ELISA Kit for detecting CTLA4 in serum, plasma, tissue homogenates, cell lysates, cell culture supernates

Analytical Method: Quantitative

Specificity: This assay has high sensitivity and excellent specificity for detection of Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4). No significant cross-reactivity or interference between Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4) and analogues was observed.

Sensitivity: 0.057 ng/mL

Components:

• Pre-coated, ready to use 96-well strip plate
• Standar
• Detection Reagent A
• Detection Reagent B
• TMB Substrate
• Stop Solution
• Assay Diluent A
• Assay Diluent B
• Wash Buffer (30x concentrate)
• Standard Diluent
• Plate Sealer
• Instruction Manual

Material not included:

• Microplate Reader with 450 nm filter
• Single or multi-channel pipettes with high precision and disposable tips
• Microcentrifuge tubes
• Deionized or distilled watter
• Absorbent paper for blotting the microplate
• Container for wash solution
• 0.01 M (or 1x) Phosphate Buffered Saline (PBS), ph 7.0-7.2

Application Details

Application Notes: Optimal working dilution should be determined by the investigator.

Comment:

This product is tested and assembled before shipping to ensure that it meets its quality specifications. All kits are tested to confirm that they fall within their defined Inter- and Intra- assay coefficient of variation.

Sample Volume: 100 μL

Assay Time: 3 h

Plate: Pre-coated

Protocol: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Assay Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4) were tested 20 times on one plate, respectively
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Cytotoxic T-Lymphocyte Associated Antigen 4 (CTLA4) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Restrictions: For Research Use only

Handling

Handling Advice: The Stop Solution is acidic. Do not allow to contact skin or eyes. Calibrators, controls and specimen samples should be assayed in duplicate. Once the procedure has been started, all steps should be completed without interruption.

Storage: 4 °C,-20 °C

Storage Comment: -20°C. Bring all reagents to room temperature before beginning test. The kit may be stored at 4°C for immediate use within two days upon arrival. Reseal any unused strips with desiccant pack. Minimize freeze/thaw cycles.

Expiry Date: 12 months

Target Details for CTLA4

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

Alternative Name: Cytotoxic T-Lymphocyte Associated Antigen 4

Background: Gene Aliases: CD152, CELIAC3, CTLA4, GSE, IDDM12, Celiac Disease 3, Cytotoxic T-lymphocyte protein 4

Gene ID: 1493

UniProt: P16410

Pathways: Cancer Immune Checkpoints