| Description | Product content： E666027Component5 mLStorageE666027A2×Es Taq MasterMix (for PAGE)5×1 mL-20°C. Avoid freeze/thaw cycle.E666027BddH₂O5×1 mL-20°C. Avoid freeze/thaw cycle.Notes: 2×Es Taq MasterMix contain Es Taq DNA Polymerase, 3 mM MgCl₂ and 400 µMProduct content： E666027Component5 mLStorageE666027A2×Es Taq MasterMix (for PAGE)5×1 mL-20°C. Avoid freeze/thaw cycle.E666027BddH₂O5×1 mL-20°C. Avoid freeze/thaw cycle.Notes: 2×Es Taq MasterMix contain Es Taq DNA Polymerase, 3 mM MgCl₂ and 400 µM each dNTP. Product Introduction:This product is a premixed system composed of EsTaq DNA Polymerase, Mg2+, dNTPs, PCR stabilizers and enhancers, with a concentration of 2 ×. EsTaq DNA Polymerase has excellent performance of high amplification efficiency and low mismatch rate. The unique MasterMix formula makes the entire reaction system very stable, with over 98% of PCR amplification successful at once. At the same time, complex templates can also be effectively amplified, and human error and contamination can be minimized to the greatest extent. 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. Most PCR products obtained from amplification have an "A" base attached to the 3 'end, making them suitable for direct use in T/A cloning. Mainly suitable for conventional PCR reactions and gene cloning experiments that require high fidelity, PCR amplification products are specifically used for polyacrylamide gel electrophoresis detection.Quality control: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×Es Taq MasterMix（for Dye）25 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 µlAttention: 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 conditions step temperature time / Pre denaturation 94℃ 2 min / denaturation 94℃ 30 s 25-35 cycle anneal 55-65℃ 30 s 25-35 cycle extend 72℃ 30 s 25-35 cycle Final extension 72℃ 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, and the amplification efficiency of Es Taq DNA Polymerase 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 | Inquire | Ganglioside GT1b is a brain ganglioside. It is composed of a neutral tetra-saccharide core, with one or two sialic acid on the internal galactose and an extra sialic acid on the non-reducing terminal of galactose | Inquire | Keratinocyte growth factor (KGF) is a cytokine found by Rubin et al. (1989) from the culture supernatant of embryonic lung fibroblasts, which is a member of the FGF family, namely FGF-7. KGF is an effective epithelial-specific growth factor secreted by mesenchymal cells and distributed in epithelialKeratinocyte growth factor (KGF) is a cytokine found by Rubin et al. (1989) from the culture supernatant of embryonic lung fibroblasts, which is a member of the FGF family, namely FGF-7. KGF is an effective epithelial-specific growth factor secreted by mesenchymal cells and distributed in epithelial cells. Its mitotic activity is mainly manifested in keratinocytes, which can specifically promote the proliferation, migration and differentiation of epithelial cells. It is closely related to organ development, wound repair, tumor genesis and immune reconstruction.Activity definition: The ED50 value is less than 1.0 ng/ml, that is, the corresponding activity unit is greater than or equal to 1 x 10*6 units/mg, as determined by the proliferation method of cultured MCF-7 cells... Read More |