TIMP2 ELISA Kit

Catalog No. ABIN1112683

Human TIMP2 ELISA Kit Colorimetric assay for quantification of Human TIMP2.

Quick Overview for TIMP2 ELISA Kit (ABIN1112683)

Target: TIMP2 (Metalloproteinase Inhibitor 2 (TIMP2))

Reactivity: Human

Detection Method: Colorimetric

Method Type: Sandwich ELISA

Detection Range: 156-10000 pg/mL

Application: ELISA

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

Product Details TIMP2 ELISA Kit

Minimum Detection Limit: 156 pg/mL

Purpose: For quantitative detection of TIMP-2 in human serum, plasma, body fluids, tissue lysates or cell culture supernatants.

Analytical Method: Quantitative

Sensitivity: < 2 pg/mL

Components: 1. One 96-well plate pre-coated with anti-Human TIMP-2 antibody 2. Lyophilized Human TIMP-2 standards: 2 tubes (10ng / tube) 3. Sample / Standard diluent buffer: 30ml 4. Biotin conjugated anti-Human TIMP-2 antibody (Concentrated): 130 µl.

Material not included: 1. 37 °C incubator 2. Microplate reader (wavelength: 450nm) 3. Precise pipette and disposable pipette tips 4. Automated plate washer 5. ELISA shaker 6. 1.5ml of Eppendorf tubes 7. Plate cover 8. Absorbent filter papers 9. Plastic or glass container with volume of above 1L

Application Details

Comment:

This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-TIMP-2 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-TIMP-2 polyclonal antibody was used as detection antibodies. The standards test samples and biotin conjugated detection antibody were added - the wells subsequently and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used - visualize HRP enzymatic reaction. TMB was catalyzed by HRP - produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional - the TIMP-2 amount of sample captured in plate. Read the O.D. absorbance at 450 nm in a microplate reader and then the concentration of TIMP-2 can be calculated.

Plate: Pre-coated

Reagent Preparation:

1. Before the experiment, centrifuge each kit component for several minutes to bring down all reagents to the bottom of tubes. 2. It is recommend to measure each standard and sample in duplicate. 3. Do NOT let the plate completely dry at any time! Since the dry condition can inactivate the biological material on the plate. 4. Do not reuse pipette tips and tubes to avoid cross contamination. 5. Do not use the expired components and the components from different batches. 6. To avoid the marginal effect of plate incubation for temperature differences (the marginal wells always get stronger reaction), it is recommend to equilibrate the ABC working solution and TMB substrate for at least 30 min at room temperature (37°C ) before adding to wells.The TMB substrate (Kit Component 8) is colorless and transparent before use, if not, please contact us for replacement.

Sample Preparation:

Preparation of sample and reagents 1. Sample Isolate the test samples soon after collecting, then, analyze immediately (within 2 hours). Or aliquot and store at -20 °C for long term. Avoid multiple freeze-thaw cycles.
Tissue lysate, body fluids and cell culture supernatants: Centrifuge to remove precipitate, analyze immediately or aliquot and store at -20 °C .
Serum: Coagulate the serum at room temperature (about 4 hours). Centrifuge at approximately 1000 × g for 15 min. Analyze the serum immediately or aliquot and store at -20 °C .
Plasma: Collect plasma with heparin or EDTA as the anticoagulant. Centrifuge for 15 min at 1000 x g within 30 min of collection. Analyze immediately or aliquot and store frozen at -20 °C. Citrate can not be used as anticoagulant here. Note: 1. Coagulate blood samples completely, then, centrifuge, and avoid hemolysis and particle. 2. NaN3 can not be used as test sample preservative, since it is the inhibitor for HRP.

Restrictions: For Research Use only

Handling

Preservative: Sodium azide, Thimerosal (Merthiolate)

Target Details for TIMP2

Target: TIMP2 (Metalloproteinase Inhibitor 2 (TIMP2))

Alternative Name: TIMP-2

Background: TIMP metallopeptidase inhibitor 2, also known as TIMP-2, is a 21-kD protein, which is secreted by human melanoma cells and binds to type IV collagenase proenzyme secreted by the same cells. The TIMP2 gene is a member of the TIMP gene family, It is encoded by 5 exons spanning 83 kb of genomic DNA. The proteins encoded by this gene family are natural inhibitors of the matrix metalloproteinases, a group of peptidases involved in degradation of the extracellular matrix. It has an amino acid sequence with many similarities to human tissue inhibitor of metalloproteinase (TIMP1). TIMP2 is a tissue inhibitor of metalloproteinases, TIMP2 induced a decrease in total protein tyrosine phosphatase (PTP) activity associated with beta-1 integrin subunits as well as dissociation of the phosphatase SHP1 from beta-1.

Pathways: cAMP Metabolic Process