| Description | BTG4 Human Pre-designed siRNA Set A contains three designed siRNAs for BTG4 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components BTG4 siRNA-1: 5 nmol (HPLC) BTG4 siRNA-2: 5 nmol (HPLC) BTG4 siRNA-3: 5 nmol (HPLC) siRNA Negative Control: 5 BTG4 Human Pre-designed siRNA Set A contains three designed siRNAs for BTG4 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components BTG4 siRNA-1: 5 nmol (HPLC) BTG4 siRNA-2: 5 nmol (HPLC) BTG4 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 | EPOCROSTM is a reactive polymer with an oxazoline group on the side chain and is used as a cross-linking agent for water-based resins. Among the water-based polymers developed to address environmental issues and the increasing use of water-based products due to VOC regulations and desolventing, the EPOCROSTM is a reactive polymer with an oxazoline group on the side chain and is used as a cross-linking agent for water-based resins. Among the water-based polymers developed to address environmental issues and the increasing use of water-based products due to VOC regulations and desolventing, the EPOCROSTM WS series is a “water-soluble type” with the following structure.Features and PropertiesHigher reactivity than water-based epoxy, melamine, blocked isocyanateVOC free (EPOCROS™ WS-300 and EPOCROS™ WS-700)High crosslinking density with a small amount addedOne-pack type with long usage timeImproves water resistance, solvent resistance, heat resistance, and the strength of films, etc.Adhesion-imparting possible to PET, OPP, PVC, etc.Fast dryingLow toxicity (Ames Test: Negative, Primary Skin Irritation Test: No irritation)WS Series Product LineupApplicationsNonwoven fabric bindersPigment printingCoatings (metals, films, leather)Paint and coatings, Primers (plastics, building materials, vehicles)AdhesivesMethodASSAY for Product Code DILW:One unit equals a decrease in absorbance of 1.0 per minute at 25°C at pH 7.5 with 2,6-dichlorophenolindophenol as the chromogen.Reagents0.2 M Tris⋅HCl buffer, pH 7.50.006 M NADH. Prepare fresh daily.0.0012 M Dichlorophenolindophenol (DCPIP) Prepare fresh daily.EnzymePrepare a 10 mg/ml solution of enzyme in 0.2 M Tris⋅HCl, pH 7.5.Dilute further immediately before use to give ΔA/min of 0.15-0.20.ProcedureAdjust spectrophotometer to 600 nm and 25°C.Pipette into cuvettes as follows:Mix quickly and measure the decrease in absorbance at 600 nm for 2-3 minutes.Determine the ΔA/min. from the initial linear portion of the curve. (Use portion of curve from t=0 to t=1 minute; the rate is linear for 1/2 to 1 minute.)Calculation... Read More | Purity>95% (SDS-PAGE&HPLC) Endotoxin level<0.1 EU/µgFunctionMay regulate apoptosis, cell proliferation and cell differentiation. Binds beta-galactoside and a wide array of complex carbohydrates. Inhibits CD45 protein phosphatase activity and therefore the dephosphorylation of Lyn Purity>95% (SDS-PAGE&HPLC) Endotoxin level<0.1 EU/µgFunctionMay regulate apoptosis, cell proliferation and cell differentiation. Binds beta-galactoside and a wide array of complex carbohydrates. Inhibits CD45 protein phosphatase activity and therefore the dephosphorylation of Lyn kinase.Gal-1 is also engaged in many protein-protein interactions. Gal-1 plays a number of crucial roles in neuronal cell differentiation and survival in both the central and the peripheral nervous systems, and the establishment and maintenance of T-cell tolerance and homeostasis in vivo... Read More | BackgroundStreptavidin is a tetrameric bacterial protein isolated from Streptomyces avidinii providing 4 high-affinity biotin binding sites. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin. With a dissociation constant on the order of ≈10⁻¹⁴ mol/L,BackgroundStreptavidin is a tetrameric bacterial protein isolated from Streptomyces avidinii providing 4 high-affinity biotin binding sites. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin. With a dissociation constant on the order of ≈10⁻¹⁴ mol/L, the binding of biotin to streptavidin is one of the strongest non-covalent interactions known in nature. Unlike egg-white avidin, which has a net positive charge at neutral pH and contains about 7% carbohydrate, streptavidin has almost no net charge at neutral pH, does not contain carbohydrate, and exhibits lower non-specific background. Streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules. This FITC-streptavidin conjugate was prepared by highly purified Streptavidin and free FITC was removed. Streptavidin (FITC) is a useful second-step reagent for the indirect immunofluorescent staining of cells in combination with biotinylated primary antibodies for flow cytometric analysis. Excitation at 488nm light leads to a fluorescence emission maximum of 520 nm.Recommended Usage：Every lot of Streptavidin-FITC is tested by flow cytometry using biotinylated primary antibodies. From this testing it is recommended that between 0.02 and 0.25 µg of streptavidin be used per 106 cells in a 100 µl staining volume... Read More |