| Description | Hsp70-derived octapeptide is a conserved octapeptide of the C-terminal end of Hsp70, which physically interacts with tetratricopeptide repeat (TPR) motifs.Form:Solid | Product DescriptionEndo F2 cleaves N-linked (asparagine-linked) biantennary oligosaccharides from glycoproteins. It also will cleave high mannose glycans but at a 40x reduced rate. It cleaves between the two N-acetylglucosamine residues in the diacetylchitobiose core of the oligosaccharide, Product DescriptionEndo F2 cleaves N-linked (asparagine-linked) biantennary oligosaccharides from glycoproteins. It also will cleave high mannose glycans but at a 40x reduced rate. It cleaves between the two N-acetylglucosamine residues in the diacetylchitobiose core of the oligosaccharide, generating a truncated sugar molecule with one N-acetylglucosamine residue remaining on the asparagine. In contrast, PNGase F removes the oligosaccharide intact.Endoglycosidase F2 is less sensitive to protein conformation than PNGase F and is therefore more suitable for deglycosylation of native proteins. However, for optimal results, denaturation of the glycoprotein is recommended.Contents60 µl aliquot of enzyme (0.3 U) in 10 mM sodium acetate 25mM NaCl, pH 4.5Included with 20 µL and 60 µL pack sizes:5x Reaction Buffer – 250 mM sodium acetate, pH 4.5Molecular weight 32,000 daltonsSpecific Activity Defined as the amount of enzyme required to catalyze the release of N-linked oligosaccharides from 1 micromole of denatured porcine fibrinogen in 1 minute at 37°C, pH 5.5. Cleavage is monitored by SDS-PAGE (cleaved fibrinogen migrates faster).Formulation The enzyme is provided as a sterile-filtered solution in 10 mM sodium acetate, 25mM NaCl, pH 4.5Specificity Endo F2 cleaves Asparagine-linked biantennary and high mannose glycans (at a 40X reduced rate). It cleaves between the two N-acetylglucosamine residues in the diacetylchitobiose core of the oligosaccharide, generating a truncated sugar molecule with one N-acetylglucosamine residue remaining on the asparagine. In contrast, PNGase F removes the oligosaccharide intact. Endoglycosidase F2 is less sensitive to protein conformation than PNGase F and is therefore more suitable for deglycosylation of native proteins. However for optimal results, denaturation of the glycoprotein is recommended.Quality & Purity Endo F2 is tested for contaminating protease as follows: 10 µg of denatured BSA is incubated at 37°C for 24 hours with 2 µl of enzyme. SDS-PAGE analysis of the treated BSA shows no evidence of degradation. The production host strain has been extensively tested and does not produce any detectable glycosidases.Stability Several days exposure to ambient temperatures will not reduce activity. Stable at least 12 months when stored properly.Directions for use 1. Add up to 200 µg of glycoprotein to an Eppendorf tube. Adjust to 38 µl final volume with de-ionized water. 2. Add 10 µl 5x Reaction Buffer 4.5 3. Add 2.0 µl of Endo F2 to the reaction. Incubate 1 hour at 37°C. Monitor cleavage by SDS-PAGEThe production host strain has been extensively tested and does not produce any detectable glycosidases... Read More | The Leuconostoc GPDH exhibits dual coenzyme specificity, namely NAD and NADP (Olive and Levy, Biochem., 6, 730 730, 1967). When assayed under conditions that are optimal for the particular coenzyme, the ratio of observed catalytic activity is NAD/NADP = 1.8 | Inquire | 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 |