| Description | GAB1 Human Pre-designed siRNA Set A contains three designed siRNAs for GAB1 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components GAB1 siRNA-1: 5 nmol (HPLC) GAB1 siRNA-2: 5 nmol (HPLC) GAB1 siRNA-3: 5 nmol (HPLC) siRNA Negative Control: 5 GAB1 Human Pre-designed siRNA Set A contains three designed siRNAs for GAB1 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components GAB1 siRNA-1: 5 nmol (HPLC) GAB1 siRNA-2: 5 nmol (HPLC) GAB1 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 | Inorganic pyrophosphates are inevitably produced in the process of mRNA transcription in vitro. These substances have a great inhibitory effect on transcription. Inorganic pyrophosphatase (PPase) can hydrolyze the inorganic pyrophosphates produced in nucleic acid amplification experiments, promote Inorganic pyrophosphates are inevitably produced in the process of mRNA transcription in vitro. These substances have a great inhibitory effect on transcription. Inorganic pyrophosphatase (PPase) can hydrolyze the inorganic pyrophosphates produced in nucleic acid amplification experiments, promote the shift of reaction equilibrium to the product generation end, and increase the amount of products.The molecular weight of PPase (pyrophosphatase, inorganic, inorganic pyrophosphatase) is about 63kd, which can catalyze the hydrolysis of inorganic pyrophosphate to produce orthophosphate: P2O74_+H2O+PPase→2HPO42_. In the nucleic acid amplification experiment, PPase can hydrolyze the inorganic pyrophosphate generated with the reaction to avoid its inhibition on the reaction system. The removal of pyrophosphate can shift the reaction equilibrium to the product generation end.This product is a GMP level recombinant inorganic pyrophosphatase (yeast source) expressed by large-scale fermentation of E. coli. It is produced with raw and auxiliary materials of medicinal specifications, and the host protein residue and nucleic acid residue are strictly controlled. The product production and quality management procedures in line with GMP specifications ensure that the production process and all raw and auxiliary materials can be traced.Quality requirements project standard appearance Clear liquid Visible foreign matter Compliance with regulations PH value 7.5±8.5 activity 98U/ml-102U/ml purity ≥95% Endonuclease residues Degradation of substrate shall not exceed 10% Exonuclease residues Degradation of substrate shall not exceed 10% RNase residue Degradation of substrate shall not exceed 10% Bacterial endotoxin content ≤10EU/ml Exogenous DNA residue ≤100pg/mg Host protein residue ≤50ppm Mycoplasma detection negative Heavy metal residues ≤10ppm Follow the following specifications1. ISO 9001:2015, certified facility。2. GMP appendix - cell therapy products State Drug Administration.3. general introduction to human gene therapy - Chinese Pharmacopoeia 2020, National Pharmacopoeia Committee.4. USP chapter <1043>, adjuvant materials for cell, gene, and tissue engineered products.5. USP chapter <92>, growth factors and cytokines used in cell therapy manufacturing.6. Ph. Eur. General chapter 5.2.12, raw materials of biological origin for the production of cell-based and gene therapy medical products.Product features1. hydrolyze inorganic pyrophosphate.2. DNA synthesis: significantly enhance DNA replication ability.3. RNA synthesis: increase RNA production in in vitro transcription reaction.4. The optimal reaction temperature is 25℃, and the enzyme can be inactivated at 65℃ for 10min.Product usage1. optimize RNA transcription: improve the RNA yield of in vitro transcription reaction.2. remove PPI contamination from reagents for SNP genotyping by pyrophosphate assay.3. promote the synthesis of protein, RNA and DNA.4. catalyze the reaction of PPI + H2O → 2pi.5. ssr-pcr optimization：Improve efficiency and increase DNA production.Activity definitionCatalytic inorganic pyrophosphate formation 1 per minute under standard reaction conditions µ The amount of enzyme required for mol phosphate was defined as 1 active unit.Preservation system20 mM Tris-HCl; 100 mM NaCl; 1 mM DTT; 0.1 mM EDTA; 50% (v/v) Glycerol; pH 8.0。 Storage temperature-20±5 ℃。Matters needing attention1. the enzyme has activity in various reaction buffers. Generally, the enzyme can be directly added in HDA, lamp and other experiments.2. the dosage of the enzyme needs to be optimized in different experiments, usually adjusted at the concentration of 0.05~1u/ml.3. the optimum reaction temperature of the enzyme was 25 ℃, and it was active at 16~37 ℃, and the enzyme could be inactivated at 65 ℃ for 10min.4. cofactor: mg2+ is necessary for enzyme activity... Read More | 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 | Purity: >90%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：KGF (keratinocyte growth factor), also known as FGF-7 (fibroblast growth factor-7), is one of 22 known members of the mouse FGF family of secreted proteins that plays a key role in development, Purity: >90%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：KGF (keratinocyte growth factor), also known as FGF-7 (fibroblast growth factor-7), is one of 22 known members of the mouse FGF family of secreted proteins that plays a key role in development, morphogenesis, angiogenesis, wound healing, and tumorigenesis (1-4). KGF expression is restricted to cells of mesenchymal origin. When secreted, it acts as a paracrine growth factor for nearby epithelial cells (1). KGF speeds wound healing by being dramatically upregulated in response to damage to skin or internal structures that results in high local concentrations of inflammatory mediators such as IL-1 and TNF-alpha. (2, 5). KGF promotes cell migration and invasion, and mediates melanocyte transfer to keratinocytes upon UVB radiation (6, 7). It has been used ectopically to avoid chemotherapy-induced oral mucositis in patients with hematological malignancies (1). Deletion of KGF affects kidney development, producing abnormally small ureteric buds and fewer nephrons (8). It also impedes hair follicle differentiation (9). The 194 amino acid (aa) KGF precursor contains a 31 aa signal sequence and, like all other FGFs, an ~120 aa beta -trefoil scaffold that includes receptor- and heparin-binding sites. KGF signals only through the IIIb splice form of the tyrosine kinase receptor, FGF R2 (FGF R2-IIIb/KGF R) (10). Receptor dimerization requires an octameric or larger heparin or heparin sulfate proteoglycan (11). FGF-10, also called KGF2, shares 51% aa identity and similar function to KGF, but shows more limited expression than KGF and uses an additional receptor, FGF R2-IIIc (12). Following receptor engagement, KGF is typically degraded, while FGF-10 is recycled (12). Mature human KGF, which is active across species, shares 98% aa sequence identity with bovine, equine, ovine and canine, 96% with mouse and porcine, and 92% with rat KGF, respectively... Read More |