| Description | ABCG4 Human Pre-designed siRNA Set A contains three designed siRNAs for ABCG4 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components ABCG4 siRNA-1: 5 nmol (HPLC) ABCG4 siRNA-2: 5 nmol (HPLC) ABCG4 siRNA-3: 5 nmol (HPLC) siRNA Negative Control:ABCG4 Human Pre-designed siRNA Set A contains three designed siRNAs for ABCG4 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components ABCG4 siRNA-1: 5 nmol (HPLC) ABCG4 siRNA-2: 5 nmol (HPLC) ABCG4 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 | 4-Methylumbelliferyl α-L-iduronide (free acid) is a fluorogenic substrate for α-L-iduronidase. This is found in cell lysosomes, which is involved in the degradation of glycosaminoglycans. 4-Methylumbelliferyl-α-L-iduronide is cleaved by α-L-iduronidase to release the fluorescent 4-Methylumbelliferyl α-L-iduronide (free acid) is a fluorogenic substrate for α-L-iduronidase. This is found in cell lysosomes, which is involved in the degradation of glycosaminoglycans. 4-Methylumbelliferyl-α-L-iduronide is cleaved by α-L-iduronidase to release the fluorescent moiety 4-methylumbelliferyl (4-MU). This 4-Methylumbelliferyl α-L-iduronide form is the free acid, which offers a considerable weight for weight advantage over the 4-MU iduronide salt in terms of its application dose.:For further studies, use α-L-iduronidase gene silencing:siRNA and shRNA:reagents and α-L-iduronidase gene editing:CRISPR:knockout and activation products... Read More | Es Taq DNA Polymerase is an optimized mixed enzyme of Taq and Pfu DNA Polymerase, with 5 '→ 3' DNA polymerase activity, 5 '→ 3' exonuclease activity, and 3 '→ 5' exonuclease activity. Compared with Taq DNA Polymerase, Es Taq DNA Polymerase has excellent performance of high Es Taq DNA Polymerase is an optimized mixed enzyme of Taq and Pfu DNA Polymerase, with 5 '→ 3' DNA polymerase activity, 5 '→ 3' exonuclease activity, and 3 '→ 5' exonuclease activity. Compared with Taq DNA Polymerase, Es Taq DNA Polymerase has excellent performance of high amplification efficiency and low mismatch rate, and can efficiently amplify DNA fragments. Most of the PCR products amplified with this product contain an "A" base at the 3 'end, which can be directly used for T/A cloning. This product is suitable for conventional PCR reactions and gene cloning reactions that require high fidelity. E665597Component500 UStorageE665597AEs Taq DNA Polymerase, 5 U/µL 100 µL -20℃. Avoid freeze/thaw cycle.E665597B10×PCR Buffer 1.8 mL -20℃. Avoid freeze/thaw cycle.Activity definition:Using activated salmon sperm DNA as a template/primer, the amount of enzyme required to incorporate 10 nmol of deoxyribonucleotide into acidic insoluble substances is defined as 1 active unit (U) at 74 ℃ for 30 minutes.Quality control:After multiple column purifications, SDS-PAGE detected a purity of over 99%; No exogenous nuclease activity detected; PCR method for detecting residual DNA without host; Can effectively amplify single copy genes in the human genome; Store at room temperature for one month without significant changes in activity.1. PCR reaction system Reagent 50 µlReaction system Final concentration 10×PCR Buffer 5 µL 1× dNTP Mix，10 mM each 1 µL 200 µM each Forward Primer，10 µM 2 µL 0.4 µM Reverse Primer，10 µM 2 µl 0.4 µM Template DNA <0.5 µg <0.5 µg/50 µl Es Taq DNA Polymerase，5 U/µl 0.25-0.5 µl 1.25-2.5U/50 µl ddH2O up 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 conditions Step Temperature Time / Pre denaturation 94℃ 2 min / Denaturation 94℃ 30 s 25-35 cycles Anneal 55-65℃ 30 s 25-35 cycles Extend 72℃ 30 s 25-35 cycles Finally extended 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. The amplification efficiency of Es 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 contentF665774Component5 mLStorageF665774A2×Fast Probe Mixture5×1 mL-20℃. Avoid freeze/thaw cycle.F665774B50×High ROX200 µL-20℃. Avoid freeze/thaw cycle.F665774CddH2O5×1 mL-20℃. Avoid freeze/thaw cycle.Product IntroductionFast Probe Mixture is a preProduct contentF665774Component5 mLStorageF665774A2×Fast Probe Mixture5×1 mL-20℃. Avoid freeze/thaw cycle.F665774B50×High ROX200 µL-20℃. Avoid freeze/thaw cycle.F665774CddH2O5×1 mL-20℃. Avoid freeze/thaw cycle.Product IntroductionFast Probe Mixture is a pre-mixed system for real-time fluorescence PCR by probe method (TaqMan, Molecular Beacon, etc.), with a concentration of 2×, including Fast Taq DNA Polymerase, PCR Buffer, dNTPs, Mg2+ and so on, which is easy and convenient to operate. It is mainly used for the detection of genomic DNA target sequence and cDNA target sequence after RNA reverse transcription. The Fast Taq DNA Polymerase contained in this product can effectively reduce the non-specific amplification generated by the non-specific binding of primers and templates or primer dimerization at room temperature, and the activation of the enzyme only needs to be incubated at 95 ℃ for 30 s. The whole PCR reaction process can save about 40 minutes compared with the ordinary reaction, which greatly shortens the reaction time of PCR. The combination of unique PCR buffer system and fast hot start enzyme effectively inhibits the generation of non-specific products and significantly improves the PCR amplification efficiency with stronger fluorescence signal, higher sensitivity and wider linear range. The product has a wide range of applications and can be used for both normal and rapid quantitative PCR programs.ROX dye is used to correct the fluorescence signal error generated between wells of a quantitative PCR instrument, and is generally used in Real Time PCR amplifiers from ABI, Stratagene, and other companies. The excitation optics vary from instrument to instrument, so the concentration of ROX dye must be matched to the corresponding fluorescence quantitative PCR instrument.Instruments that do not require ROX calibration (F665766):Roche LightCycler 480, Roche LightCyler 96, Bio-rad iCyler iQ, iQ5, CFX96 and others.Instruments that require Low ROX calibration (F665768):ABI Prism7500/7500 Fast, QuantStudio®3 System, QuantStudio®5 System, QuantStudio®6 Flex System, QuantStudio®7 Flex System, ViiA 7 system. Stratagene Mx3000/Mx3005P, Corbett Rotor Gene 3000, and more.Instruments that require High ROX calibration (F665774):ABI Prism 7000/7300/7700/7900, Eppendorf, ABI Step One/Step One Plus, and others.matters needing attention1. Before use, please mix gently by turning up and down, avoid foaming as much as possible, and use after brief centrifugation.2. Avoid repeated freezing and thawing of this product, repeated freezing and thawing may degrade the product performance. This product can be stored for long term at -20℃, protected from light. If frequent use is required within a short period of time, it can be stored at 2-8℃.UsageThe following examples are conventional PCR reaction systems and reaction conditions, which should be improved and optimized according to the template, primer structure and target fragment size in actual operation.1.PCR reaction systemreagents50µl reaction systemfinal concentration2×Fast Probe Mixture25 µl1×Forward Primer, 10µM1µl0.2µM¹⁾Reverse Primer, 10µM1µl0.2µM¹⁾Probe, 10 µM1µl0.2µM²⁾Template DNA2µl³⁾ 50x Low ROX or High ROX(optional)⁴⁾1µl1×ddH₂Oup to 50µlNote: 1) Usually the primer concentration of 0.2µM can get better results, and 0.1-1.0µM can be used as a reference for setting the range. 2) The final concentration of the probe used is related to the fluorescent quantitative PCR instrument used, the type of probe, and the type of fluorescent labeling substance, so please refer to the instruction manual of the instrument or the specific requirements of the use of each fluorescent probe for the adjustment of the concentration in actual use.(3) Usually the amount of DNA template is 10-100ng genomic DNA or 1-10ng cDNA as a reference. Since the templates of different species contain different copy numbers of target genes, the templates can be subjected to gradient dilution to determine the optimal amount of template to be used.(4) The excitation optical system varies from instrument to instrument, choose to add 50×Low ROX or 50×High ROX according to the instrument using fluorescence quantification.2. PCR reaction program:A two-step PCR reaction program is recommended, and this program is set up using the ABI 7500 Fluorescent Quantitative PCR Instrument as a reference.Note: 1) The enzyme used in this product must be pre-denatured at 95°C for 30s to achieve enzyme activation. Under this condition, most of the templates can be well unchained. For templates with high GC content and complex secondary structure, the pre-denaturation time can be extended to 1-4 minutes to allow the starting template to fully unchain.(2) It is recommended to use two-step PCR reaction program, if you do not get good experimental results due to the use of primers with lower Tm values, etc., you can try to carry out three-step PCR amplification, and the annealing temperature, please use the range of 56 ℃ - 64 ℃ as a setting reference... Read More | Inquire |