| Description | Inquire | D665729 Component 50 T Storage D665729A Conversion Buffer CR 5×1 mL RT D665729B Buffer CL 30 mL RT D665729C Buffer MD 0.4 mL RT D665729D Buffer DB 10 mL RT D665729E Buffer WB (concentrate) 10 mL RT D665729F Buffer GW1 (concentrate) 13 mL RT D665729G Buffer GW2 (concentrate) 15 mL RT D665729H D665729 Component 50 T Storage D665729A Conversion Buffer CR 5×1 mL RT D665729B Buffer CL 30 mL RT D665729C Buffer MD 0.4 mL RT D665729D Buffer DB 10 mL RT D665729E Buffer WB (concentrate) 10 mL RT D665729F Buffer GW1 (concentrate) 13 mL RT D665729G Buffer GW2 (concentrate) 15 mL RT D665729H Buffer EB 4 mL RT D665729I Buffer PS 10 mL RT D665729J Spin Columns DF 50 Pcs 2-8 ℃ D665729K Collection Tubes 50 Pcs RTProduct Introduction:The basic principle of this reagent kit is that after DNA is treated with sodium bisulfite, unmethylated cytosine can be transformed into uracil, while methylated cytosine remains unchanged. And adopting an innovative high-temperature treatment method, the transformation time is greatly shortened, the transformation efficiency is improved, and the transformation efficiency can reach over 99%. At the same time, using a silicon-based membrane purification column, DNA can be recovered and purified from the methylated solution through a simple binding washing elution step. The recovered DNA has high purity and good integrity, and can be directly used for sequencing, methylated PCR detection, chip analysis, connection and transformation, enzyme digestion, labeling, microinjection, PCR and in vitro transcription and other molecular biology experiments.Self prepared reagents: anhydrous ethanol, 75% ethanol.Preparation and important precautions before the experiment1. Product usage method:(1) 10 times packaging preparation method: CT Conversion Agent is a solid mixture that must be prepared before first use. Add 2 ml sterile water and 100 µ M-Dissolving Buffer and 300 µ Add M-Diffusion Buffer to the CT Conversion Agent tube. Dissolve at 55 ° C and shake until completely dissolved. Store the CT Conversion Agent solution at room temperature (20 ° C-30 ° C) in the dark before use. The CT Conversion Agent for each tube is designed for 10 DNA treatments. In order to achieve better results, the prepared CT Conversion Agent should be used immediately. If not used immediately, the CT Conversion Agent solution can be stored at -20 ° C for 1 week. Before use, be sure to thaw the stored CT Conversion Agent solution at room temperature and mix thoroughly by shaking or inverting for 2 minutes, CT Conversion Reagent is sensitive to light, so it is important to minimize exposure to light as much as possible.(2) 50 times packaging preparation method: CT Conversion Agent and M-Dissolving Buffer are solid mixtures that must be prepared before first use. Add 5 ml of sterile water to the M-Dissolving Buffer and shake to dissolve. After all the solids have dissolved, transfer all the solution from the M-Dissolving Buffer tube to the CT Conversion Agent tube and add 5.5 ml of sterile water. Add 1.5 ml of M-Dilution Buffer to the CT Conversion Agent tube. Dissolve at 55 ° C and shake until completely dissolved. Store the CT Conversion Agent solution at room temperature (20 ° C-30 ° C) in the dark before use. The CT Conversion Agent for each tube is designed for 50 DNA treatments. In order to achieve better results, the CT Conversion Agent should be used immediately after preparation. If not immediately used, the CT Conversion Agent solution can be stored at -20 ° C for 1 week. Before use, be sure to thaw the stored CT Conversion Agent solution at room temperature and mix thoroughly by shaking or inverting for 2 minutes, CT Conversion Reagent is sensitive to light, so it is important to minimize exposure to light as much as possible.2. Before the first use, anhydrous ethanol should be added to the M-Wash Buffer according to the instructions on the reagent bottle label.Operation stepsThe range of DNA prepared each time is 1 ng-4 µ Between g, the optimal amount is 500 ng-2 µ G.1. Take 20 µ Add DNA sample into centrifuge tube (self provided), and if the sample amount is insufficient, replenish with water up to 20 µ L.2. Add 2.2 to the DNA sample µ Mix the sample well with the M-Dilution Buffer of l.3.42 ℃ water bath for 30 minutes.4. Add 220 to the sample obtained from the previous step µ Prepare the CT Conversion Agent solution, mix well, and incubate in an 80 ℃ constant temperature water bath in a dark place for 60 minutes.5. Add 480 to the solution in the previous step µ M - Buffer PA, gently mix upside down.6. Column balance: Add 200 to the spin columns DS that have been loaded into the collection tube µ Centrifuge at 12000 rpm (~13400 × g) for 2 minutes, discard the waste liquid in the collection tube, and place the adsorption column back into the collection tube.7.Add all the solution obtained from step 5 to the adsorption column (already loaded into the collection tube), let it stand at room temperature for 2 minutes, centrifuge at 12000 rpm for 1 minute, discard the waste liquid in the collection tube, and place the adsorption column back into the collection tube.Attention: The maximum capacity of the adsorption column is 750 µ l. If the sample volume is greater than 750 µ L can be added in batches.8. Add 500 to the adsorption column µ Centrifuge at 12000 rpm for 1 minute using M-Buffer PA, discard the waste liquid from the collection tube, and place the adsorption column in the recovery tube.9. Add 650 to the adsorption column µ M-Wash Buffer (please check if anhydrous ethanol has been added before use), centrifuge at 12000 rpm for 1 minute, discard the waste liquid in the collection tube, and place the adsorption column in the collection tube.10.12000 rpm for 2 minutes, discard the waste liquid, and place the adsorption column at room temperature for a few minutes to thoroughly air dry.Note: The purpose of this step is to remove residual ethanol from the adsorption column, which will affect subsequent enzymatic reactions (such as enzyme digestion, PCR, etc.).11. Place the adsorption column into a new centrifuge tube (provided by oneself), and add 20 drops to the middle position of the adsorption membrane in the air µ M-Elution Buffer (pH 8.5), leave at room temperature for 2 minutes. Collect DNA solution by centrifugation at 12000 rpm for 1 minute.12. Collect 20 µ Add 2.2 to DNA µ M-Diffusion Buffer, let it stand at room temperature for 30 minutes.13. Add 500 to the solution µ After pre cooling anhydrous ethanol, invert and mix well, and place the solution at -20 ℃ to precipitate for 30 minutes (overnight precipitation is more effective).14.12000 rpm for 15 minutes and gently discard the supernatant.15. Add 75% ethanol, centrifuge at 12000 rpm for 1 minute, pour out the supernatant, wait for ethanol to evaporate at room temperature, then add 20 µ Dissolve the M-Elution buffer and store the DNA at -20 ℃. The DNA collected in this step can be used for subsequent related experiments... 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