Factor VII Kit ELISA

N° du produit ABIN5564542

Détail du produit Factor VII Kit ELISA

Antigène: Factor VII (F7) (Coagulation Factor VII (F7))

Reactivité: Humain

Méthode de détection: Colorimetric

Type de méthode: Sandwich ELISA

Gamme de detection: 0.352-90 ng/mL

Seuil minimal de détection: 0.352 ng/mL

Application: ELISA

Fonction: The AssayMax™ Human Factor VII (FVII) ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for detection of human factor VII and factor VIIa in plasma, serum, and cell culture samples. This assay employs a quantitative sandwich enzyme immunoassay technique that measures total FVII in less than 4 hours. A polyclonal antibody specific for FVII has been pre-coated onto a 96-well microplate with removable strips. FVII in standards and samples is sandwiched by the immobilized antibody and the biotinylated polyclonal antibody specific for FVII, which is recognized by a streptavidin-peroxidase conjugate. All unbound material is washed away and a peroxidase enzyme substrate is added. The color development is stopped and the intensity of the color is measured.

Marque: AssayMax™

Type d'échantillon: Cell Culture Cells, Plasma, Serum

Analytical Method: Quantitative

Ingrédients: Human FVII Microplate: A 96-well polystyrene microplate (12 strips of 8 wells) coated with a polyclonal antibody against human FVII. Sealing Tapes: Each kit contains 3 precut, pressure sensitive sealing tapes that can be cut to fit the format of the individual assay. Human FVII Standard: Human FVII in a buffered protein base (90 ng, lyophilized). Biotinylated Human FVII Antibody (50x): A 50-fold concentrated biotinylated polyclonal antibody against FVII (120 l). MIX Diluent Concentrate (10x): A 10-fold concentrated buffered protein base (30 ml). Wash Buffer Concentrate (20x): A 20-fold concentrated buffered surfactant (30 ml, 2 bottles). Streptavidin-Peroxidase Conjugate (SP Conjugate): A 100-fold concentrate (80 l). Chromogen Substrate: A ready-to-use stabilized peroxidase chromogen substrate tetramethylbenzidine (8 ml). Stop Solution: A 0.5 N hydrochloric acid to stop the chromogen substrate reaction (12 ml). Positive Control: 1 vial, See Insert CEF20071. Negative Control: 1 vial, See Insert CEF20071.

Matériel non inclus: Microplate reader capable of measuring absorbance at 405 nm. Pipettes (1-20 µL, 20-200 µL, and multiple channel). Deionized or distilled reagent grade water Incubator (37 °C)

Information d'application

Durée du test: 4 h

Plaque: Pre-coated

Protocole:

• Step 1. Add 50 μL of Standard or Sample per well. Incubate 2 hours.
• Step 2. Wash, then add 50 μL of Biotinylated Antibody per well. Incubate 1 hour.
• Step 3. Wash, then add 50 μL of SP Conjugate per well. Incubate 30 minutes.
• Step 4. Wash, then add 50 μL of Chromogen Substrate per well. Incubate 15 minutes.
• Step 5. Add 50 μL of Stop Solution per well. Read at 450 nm immediately.

Préparation des réactifs:

Freshly dilute all reagents and bring all reagents to room temperature before use. MIX Diluent Concentrate (10x): If crystals have formed in the concentrate, mix gently until the crystals have completely dissolved. Dilute the MIX Diluent Concentrate 1:10 with reagent grade water. Store for up to 30 days at 2-8 °C.

Prélèvement de l'échantillon: Plasma: Collect plasma using one-tenth volume of 0.1 M sodium citrate as an anticoagulant. Centrifuge samples at 3000 x g for 10 minutes. Dilute samples 1:40 into MIX Diluent and assay. The undiluted samples can be stored at -20 °C or below for up to 3 months. Avoid repeated freeze-thaw cycles (EDTA or Heparin can also be used as an anticoagulant). Serum: Samples should be collected into a serum separator tube. After clot formation, centrifuge samples at 3000 x g for 10 minutes, and remove serum. Dilute samples 1:40 into MIX Diluent and assay. The undiluted samples can be stored at -20 °C or below for up to 3 months. Avoid repeated freeze-thaw cycles. Cell Culture Supernatants: Collect cell culture media and centrifuge at 3000 x g for 10 minutes at 4 °C to remove debris and assay. The samples can be stored at -20 °C or below. Avoid repeated freeze-thaw cycles.

Procédure de l'essai:

Prepare all reagents, standard solutions, and samples as instructed. Bring all reagents to room temperature before use. The assay is performed at room temperature (20-25 °C). Remove excess microplate strips from the plate frame and return them immediately to the foil pouch with desiccants inside. Reseal the pouch securely to minimize exposure to water vapor and store in a vacuum desiccator. Add 50 l of Human FVII Standard or sample per well. Cover wells with a sealing tape and incubate for 2 hours. Start the timer after the last addition. Wash five times with 200 l of Wash Buffer manually. Invert the plate each time and decant the contents, hit 4-5 times on absorbent material to completely remove the liquid. If using a machine, wash six times with 300 l of Wash Buffer and then invert the plate, decanting the contents, hit 4-5 times on absorbent material to completely remove the liquid. Add 50 l of Biotinylated Human FVII Antibody to each well and incubate for 1 hour. Wash the microplate as described above. Add 50 l of Streptavidin-Peroxidase Conjugate per well and incubate for 30 minutes. Turn on the microplate reader and set up the program in advance. Wash the microplate as described above. Add 50 l of Chromogen Substrate per well and incubate for 15 minutes or till the optimal blue color density develop. Gently tap the plate to ensure thorough mixing and break the bubbles in the well with pipette tip. Add 50 l of Stop Solution to each well. The color will change from blue to yellow. Read the absorbance on a microplate reader at a wavelength of 450 nm immediately. If wavelength correction is available, subtract readings at 570 nm from those at 450 nm to correct optical imperfections. Otherwise, read the plate at 450 nm only. Please note that some 5 unstable black particles may be generated at high concentration points after stopping the reaction for about 10 minutes, which will reduce the readings.

Calcul des résultats:

• Calculate the mean value of the duplicate or triplicate readings for each standard and sample.
• To generate a standard curve, plot the graph using the standard concentrations on the x-axis and the corresponding mean 450 nm absorbance (OD) on the y-axis. The best-fit line can be determined by regression analysis using log-log or four-parameter logistic curve-fit.
• Determine the unknown sample concentration from the standard curve and multiply the value by the dilution factor.

Restrictions: For Research Use only

Stockage

Conseil sur la manipulation: This product is for Research Use Only and is Not For Use In Diagnostic Procedures. Prepare all reagents (working diluent buffer, wash buffer, standard, positive control, negative control, biotinylated antibody, and SP conjugate) as instructed, prior to running the assay. Prepare all samples prior to running the assay. The dilution factors for the samples are suggested in this insert. However, the user should determine the optimal dilution factor. Spin down the SP conjugate vial and the biotinylated antibody vial before opening and using contents. The Stop Solution is an acidic solution. 2 The kit should not be used beyond the expiration date.

Stock: 4 °C,-20 °C

Stockage commentaire: Upon arrival, immediately store components of the kit at recommended temperatures up to the expiration date. Store SP Conjugate and Biotinylated Antibody at -20°C. Store Microplate, Diluent Concentrate (10x), Wash Buffer, Stop Solution, and Chromogen Substrate at 2-8°C. Unused microplate wells may be returned to the foil pouch with the desiccant packs and resealed. May be stored for up to 30 days in a vacuum desiccator. Diluent (1x) may be stored for up to 30 days at 2-8°C. Store Standard, Positive Control, and Negative Control at 2-8°C before reconstituting with Diluent and at -20°C after reconstituting with Diluent.

Détail du antigène

Antigène: Factor VII (F7) (Coagulation Factor VII (F7))

Autre désignation: Factor VII (Factor 7) (F7 Produits)

Synonymes: F7 Kit ELISA, wu:fb59f04 Kit ELISA, zgc:109870 Kit ELISA, SPCA Kit ELISA, AI114908 Kit ELISA, ATIII Kit ELISA, At-3 Kit ELISA, At3 Kit ELISA, LOC100223776 Kit ELISA, AI132620 Kit ELISA, Cf7 Kit ELISA, FVII Kit ELISA, mfVII Kit ELISA, f7 Kit ELISA, coagulation factor VII Kit ELISA, serine (or cysteine) peptidase inhibitor, clade C (antithrombin), member 1 Kit ELISA, coagulation factor 7 (serum prothrombin conversion accelerator) S homeolog Kit ELISA, F7 Kit ELISA, f7 Kit ELISA, Serpinc1 Kit ELISA, CpipJ_CPIJ009142 Kit ELISA, CpipJ_CPIJ010295 Kit ELISA, CpipJ_CPIJ020127 Kit ELISA, fa7 Kit ELISA, f7.S Kit ELISA

Sujet: Factor VII (FVII) is a vitamin K-dependent plasma glycoprotein that is synthesized in the liver and circulates in blood as a single-chain inactive zymogen with a molecular mass of 50 kDa (1). Upon tissue damage and vascular injury, the cell surface receptor and cofactor tissue factor binds and allosterically activates FVII to its active form, FVIIa. The tissue factor/FVIIa complex catalyzes the conversion of both factor IX to factor IXa and factor X to factor Xa to initiate coagulation via the extrinsic pathway (2, 3).

ID gène: 2155

UniProt: P08709

Pathways: Response to Growth Hormone Stimulus, Platelet-derived growth Factor Receptor Signaling