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| Product Name | Mouse Factor X (FX) ELISA Kit |
| Catalog No. | CFTK-HMM-0011 |
| Test Species | Mouse |
| Application | This kit is for the in vitro quantitative analysis of Mouse Coagulation Factor X (FX) in serum, plasma, tissue homogenate and related fluid samples. |
| Shelf Life | 6 months |
| Storage | 2-8°C |
| Detection Principle | The kit uses a double-antibody one-step sandwich enzyme-linked immunosorbent assay (ELISA). To pre-coated wells pre-coated with mouse capture antibody to Factor X (FX), add specimen, standard, and HRP-labeled detection antibody sequentially, incubate and wash thoroughly. The color is developed with the substrate TMB, which is converted to blue by catalysis of peroxidase and to final yellow by acid. There is a positive correlation between the shade of color and mouse coagulation factor X (FX) in the sample. The absorbance (OD value) is measured at 450 nm using an enzyme meter and the concentration of the sample is calculated. |
| Sample Processing | 1. Serum: Place whole blood specimens collected in serum separator tubes at room temperature for 2 hours or overnight at 4°C, then centrifuge at 1000×g for 20 minutes and remove the supernatant, or store the supernatant at -20°C or -80°C, but avoid repeated freezing and thawing. 2. Plasma: Collect the specimen with EDTA or heparin as anticoagulant and centrifuge the specimen at 1000×g for 15 minutes at 2-8°C within 30 minutes after collection, and then remove the supernatant for testing, or store the supernatant at -20°C or -80°C, but avoid repeated freezing and thawing. 3. Tissue Homogenization: Rinse the tissue with pre-cooled PBS (0.01M, pH=7.4) to remove residual blood (lysed erythrocytes in the homogenate will affect the measurement), weigh the tissue, and then cut the tissue into pieces. Mix the minced tissue with the corresponding volume of PBS (generally 1:9 weight-to-volume ratio, e.g., 1g of tissue sample corresponds to 9mL of PBS, the specific volume can be adjusted according to the experimental needs, and make a record. It is recommended to add protease inhibitors to PBS) into a glass homogenizer and grind it thoroughly on ice. In order to further lyse the tissue cells, the homogenate can be ultrasonically broken, or repeatedly frozen and thawed. Centrifuge the homogenate at 5000×g for 5-10 minutes and take the supernatant for testing. 4. Cell Culture Supernatant or Other Biological Specimens: Please centrifuge the supernatant at 1000×g for 20 minutes, and then take the supernatant for testing, or store the supernatant at -20°C or -80°C, but should avoid repeated freezing and thawing. Note: Hemolyzed specimens are not suitable for this test. |
| Self-contained Reagents / Instruments / Consumables | Enzyme labeler (450 nm) High-precision spikers and tips: 0.5-10 µL, 2-20 µL, 20-200 µL, 200-1000 µL 37°C thermostat Distilled or deionized water |
| Standard Concentration | 320, 160, 80, 40, 20, 10 U/L |
| Reagent Preparation | The kit should be equilibrated at room temperature before use when removed from the refrigerated environment. Dilution of 20 x Wash Buffer: distilled water is diluted 1:20, i.e. 1 part 20 x Wash Buffer to 19 parts distilled water. |
| Procedures | 1. Remove the required plates from the aluminum foil pouch after equilibrating at room temperature for 20 min, and seal the remaining plates in a self-sealing bag and return them to 4°C. 2. Set up standard wells and sample wells, add 50 µL of standards of different concentrations to each standard well. 3. Add 50 µL of the sample to be tested into the sample wells; do not add to the blank wells. 4. Except for the blank wells, add 100 µL of horseradish peroxidase (HRP)-labeled detection antibody to each of the standard and sample wells, seal the reaction wells with a sealing membrane, and incubate for 60 min at 37°C in a water bath or thermostat. 5. Discard the liquid, pat dry on absorbent paper, fill each well with washing solution (350 µL), let stand for 1 min, shake off the washing solution, pat dry on absorbent paper, and repeat the plate washing for 5 times (plate washer can also be used to wash the plate). 6. Add 50 µL of substrate A and B to each well and incubate at 37°C for 15 min. 7. Add 50 µL of termination solution to each well, and measure the OD value of each well at 450 nm within 15 min. |
| Calculation of Results | The experimental results were calculated by taking the OD value of the measured standard as the horizontal coordinate and the concentration value of the standard as the vertical coordinate, drawing the standard curve on the coordinate paper or using the relevant software and obtaining the linear regression equation, substituting the OD value of the samples into the equation and calculating the concentration of the samples. |
| Detection Range | 10 U/L-320 U/L |
| Sensitivity | < 1.0 U/L |
| Specificity | Does not cross-react with other soluble structural analogs. |
| Repeatability | The intraplate coefficient of variation is less than 10% and the interplate coefficient of variation is less than 15%. |
| Note | 1. After a large number of normal specimens, the normal concentration values of the specimens are within the detection range provided by the kit, and 50 µL of the sample can be sampled directly during the experiment. When the value of some samples exceeds the maximum concentration of the standard, the sample diluent can be used to dilute the specimen appropriately and then carry out the experiment. 2. Strictly follow the specified time and temperature for incubation to ensure accurate results. All reagents must be brought to room temperature of 20-25°C before use. keep reagents refrigerated immediately after use. 3. Incorrect plate washing can lead to inaccurate results. Ensure that the wells are as well drained as possible before adding substrate. Do not allow the wells to dry out during incubation. 4. Eliminate liquid residues and fingerprints on the bottom of the plate, otherwise the OD value will be affected. 5. The substrate chromogenic solution should be colorless or very light in color; substrate solution that has turned blue cannot be used. 6. Avoid cross contamination of reagents and specimens to avoid false results. 7. Avoid direct exposure to strong light during storage and incubation. 8. Equilibrate to room temperature before opening the sealed bag to prevent water droplets from condensing on the cold slats. 9. Any reaction reagents should not come into contact with bleaching solvents or strong gases emitted from bleaching solvents. Any bleaching components will destroy the biological activity of the reaction reagents in the kit. 10. Expired products must not be used. 11. If there is a possibility of spreading disease, all samples should be managed and samples and test devices should be handled according to prescribed procedures. |
Coagulation Factor X (FX), also known as Stuart-Prower factor, is a key serine protease in the intrinsic and extrinsic pathways of the blood coagulation cascade. It plays a pivotal role in converting prothrombin to thrombin, a critical step that leads to fibrin formation and ultimately blood clot stabilization.
In murine research, studying FX is essential for understanding coagulation disorders, thrombotic diseases, and the mechanisms of hemostasis. Mouse models are widely used in preclinical studies due to their genetic similarity to humans, making mouse FX a core target for investigating drug efficacy, genetic mutations, and pathological conditions related to coagulation.
ELISA (Enzyme-Linked Immunosorbent Assay) kits have become the gold standard for quantitative detection of biomolecules like FX in biological samples. They offer high specificity and sensitivity, enabling researchers to obtain accurate and reproducible data for downstream analysis, such as comparing FX levels in normal vs. disease model mice or evaluating the impact of experimental interventions on coagulation function.
The demand for reliable mouse FX ELISA kits continues to grow in academic research, pharmaceutical development, and biotechnology fields. Researchers rely on such tools to advance studies on hemophilia, thrombosis, atherosclerosis, and other conditions where FX dysregulation is implicated.
Specifically designed for the quantitative detection of Mouse Coagulation Factor X (FX) in serum, plasma, tissue homogenate, and cell culture supernatant.
Utilizes a double-antibody one-step sandwich ELISA principle, ensuring high specificity and minimal cross-reactivity with other structural analogs.
Offers a wide detection range of 10 U/L to 320 U/L, covering the physiological and pathological concentration ranges of mouse FX in most research samples.
Exhibits high sensitivity with a detection limit of less than 1.0 U/L, enabling the detection of low-abundance FX in dilute or limited-volume samples.
Provides consistent and reliable results with intraplate coefficient of variation (CV) < 10% and interplate CV < 15%.
Shelf life of 6 months when stored at 2-8°C, ensuring product stability and long-term usability for research projects.
Compatible with standard laboratory equipment (enzyme labeler, 37°C thermostat) and requires minimal specialized tools for sample processing and assay performance.
Exceptional specificity: Precisely targets mouse FX without cross-reacting with other coagulation factors or soluble analogs, eliminating false-positive results.
High sensitivity: Detects FX at concentrations as low as <1.0 U/L, making it suitable for samples with low FX levels (e.g., from knockout mouse models or early-stage pathological samples).
User-friendly workflow: Simple and straightforward assay procedures with clear step-by-step instructions, reducing experimental complexity and minimizing human error.
Versatile sample compatibility: Works with multiple sample types (serum, plasma, tissue homogenate, cell culture supernatant) to meet diverse research needs.
Reproducible performance: Strict quality control ensures consistent results across different experiments, plates, and laboratories, enhancing data reliability for publications and research conclusions.
Stable storage conditions: Can be stored at 2-8°C (no need for ultra-low temperature freezers) and maintains activity for 6 months, reducing storage costs and logistical challenges.
Research-focused design: Optimized for preclinical murine research, aligning with the needs of academic labs, pharmaceutical R&D teams, and biotechnology companies.
For research use only, not for clinical use.
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