| Description | CYREN Human Pre-designed siRNA Set A contains three designed siRNAs for CYREN gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components CYREN siRNA-1: 5 nmol (HPLC) CYREN siRNA-2: 5 nmol (HPLC) CYREN siRNA-3: 5 nmol (HPLC) siRNA Negative Control:CYREN Human Pre-designed siRNA Set A contains three designed siRNAs for CYREN gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components CYREN siRNA-1: 5 nmol (HPLC) CYREN siRNA-2: 5 nmol (HPLC) CYREN siRNA-3: 5 nmol (HPLC) siRNA Negative Control: 5 nmol (HPLC) FAM-labeled siRNA Negative Control: 5 nmol (HPLC) GAPDH siRNA Positive Control:5 nmol (HPLC)... Read More | 2x Taq MasterMix is a premixed system composed of Taq DNA Polymerase, Mg2+, dNTPs, PCR stabilizers, and enhancers. The pre prepared PCR mixture makes the operation simpler and faster, and can minimize human error and contamination to the greatest extent possible. The original MasterMix formula 2x Taq MasterMix is a premixed system composed of Taq DNA Polymerase, Mg2+, dNTPs, PCR stabilizers, and enhancers. The pre prepared PCR mixture makes the operation simpler and faster, and can minimize human error and contamination to the greatest extent possible. The original MasterMix formula results in high yield, strong repeatability, and good stability of amplified products. This product does not contain dyes. After the PCR program is completed, an appropriate amount of sample buffer can be added as needed for electrophoresis operation. The amplified PCR product has an "A" base attached to the 3 'end, making it suitable for direct use in T/A cloning. Mainly suitable for PCR amplification of DNA, DNA sequencing and other experiments.Quality control: T665627Component5mlStorageT665627A2×Taq MasterMix5×1ml-20℃. Avoid freeze/thaw cycle.T665627BddH₂O5×1ml-20℃. Avoid freeze/thaw cycle.Notes: 2×Taq MasterMix contains Taq DNA Polymerase, 3mM MgCl2 and 400µM each dNTP After testing, there was no exogenous nuclease activity; PCR method for detecting residual DNA without host; Can effectively amplify single copy genes from multiple genomes.Usage:The following is an example of a PCR reaction system and reaction conditions for amplifying a 1 kb fragment using human genomic DNA as a template. In practical operation, corresponding improvements and optimizations should be made based on the template, primer structure, and target fragment size.1. PCR reaction systemReagent50 µlReaction systemFinal concentration2×Taq MasterMix25 µl1×Forward Primer，10 µM2 µl0.4 µMReverse Primer，10 µM2 µl0.4 µMTemplate DNA<0.5 µg<0.5 µg/50 µlddH2Oup to 50 µl/Attention: The primer concentration should be between 0.1 and 1.0 as the final concentration µ M serves as a reference for setting the range. In the case of low amplification efficiency, the concentration of primers can be increased; When non-specific reactions occur, the primer concentration can be reduced to optimize the reaction system.2. PCR reaction conditionsStepTemperatureTime/Pre denaturation95℃2 min/Denaturation94℃30 s25-35 cyclesAnneal55-65℃30 s25-35 cyclesExtend72℃30 s25-35 cyclesFinally extended72℃2 min/Attention:1) In general experiments, if the annealing temperature is 5 ℃ lower than the melting temperature Tm of the amplification primer, and the ideal amplification efficiency cannot be achieved, the annealing temperature should be appropriately reduced; When non-specific reactions occur, increase the annealing temperature to optimize the reaction conditions.2) The extension time should be set according to the size of the amplified fragment. The amplification efficiency of Taq DNA Polymerase in this product is 2 kb/min.3) The number of cycles can be set based on the downstream application of the amplification product. If the number of cycles is too small, the amplification amount is insufficient; If there are too many cycles, the probability of mismatches will increase, and non-specific backgrounds will be severe. So, while ensuring product yield, the number of cycles should be minimized as much as possible... Read More | Product introduction：The additive contains a variety of cytokines, human albumin and other components. In order to ensure the activity, it is recommended that the additive part be thawed once and then sub packaged and frozen again. It is not advisable to freeze and thaw repeatedly. The Product introduction：The additive contains a variety of cytokines, human albumin and other components. In order to ensure the activity, it is recommended that the additive part be thawed once and then sub packaged and frozen again. It is not advisable to freeze and thaw repeatedly. The product contains no animal serum or animal serum components, no animal protein components, and no antibiotics.Matters needing attention：1. try to reduce the number of repeated freezing and thawing to avoid efficiency decline. 2. it is not suitable to place it at room temperature for a long time. 3. pay attention to aseptic operation and try to avoid pollution. 4. please wear experimental clothes and disposable gloves for operationScope of application：Cell culture additives... Read More | Unit Definition One unit will cause a change in A600 of 0.330 per minute at pH 5.7 at 37°C in a 2.0 ml reaction mixture (45 minute assay) | Purity>95% (SDS-PAGE) Endotoxin level<1.0 EU/µgFunctionInhibits the synthesis of a number of cytokines, including IFN-gamma, IL-2, IL-3, TNF and GM-CSF produced by activated macrophages and by helper T-cells |