| Description | Microbial derived chondroitin sulfate (CS)/dermatan sulfate (DS) sugar chain degrading enzymes (CSases) belong to polysaccharide lyases, which break the β -1,4-glycosidic bond between N-acetylglucosamine (GalNAc) and hexuronic acid (GlcUA/IdoUA) through a b-elimination reaction. At the same Microbial derived chondroitin sulfate (CS)/dermatan sulfate (DS) sugar chain degrading enzymes (CSases) belong to polysaccharide lyases, which break the β -1,4-glycosidic bond between N-acetylglucosamine (GalNAc) and hexuronic acid (GlcUA/IdoUA) through a b-elimination reaction. At the same time, unsaturated double bonds are formed between the C4 and C5 carbon atoms of the uronic acid, which have characteristic absorption at 232 nm and can be conveniently used for oligosaccharide product analysis and detection. Commercialized CSases include CSase ABC from Proteus vulgaris, which can simultaneously degrade CS, DS, and HA. In fact, CSase ABC is a mixture of two enzymes, with CSase ABCI being a CS/DS endonuclease and CSase ABCII being a non reducing end exonuclease of CS/DS; CSase ACI and B from Flavobacterium heparinum, where CSase ACI is a CS and HA specific endonuclease, while the latter is a DS specific endonuclease; The CSase ACII from Arthrobacter auricens is another CS and HA specific degrading enzyme, but it is an exonuclease that can effectively cleave the enzyme labeled with tetrasaccharides at the reducing end of CS oligosaccharides after being fluorescently labeled. Therefore, it is particularly useful in CS oligosaccharides enzymatic sequencing. CS/DS lyase is not only an important tool enzyme for studying the structure-activity relationship of CS/DS and preparing CS/DS oligosaccharides, but also has significant clinical application value in the treatment of central nervous system injuries. We can provide customers with various CSases with different substrate selectivity, substrate degradation modes, and specifications according to their needs, meeting various needs such as CS/DS structural and functional analysis, product quality testing, heparin/heparan sulfate production and purification, and large-scale enzymatic hydrolysis preparation of CS and DS functional oligosaccharides... Read More | Biochemical Test:SDS-PAGE (purity > 80%); Western blot with patient sample.Calculated Isoelectric Point:pH 6.10 | 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 | Inquire | Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：Histones are a complex family of highly conserved basic proteins responsible for packaging chromosomal DNA into nucleosomes. Histone proteins exhibit two levels of diversity: 1. evolutionary diversity Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：Histones are a complex family of highly conserved basic proteins responsible for packaging chromosomal DNA into nucleosomes. Histone proteins exhibit two levels of diversity: 1. evolutionary diversity between species and 2. subtype diversity in a class(H1, H2A, H2B, H3 or H4) within a species. It has become more and more evident that histone modifications are key players in the regulation of chromatin states and dynamics as well as in gene expression. Therefore, histone modifications and the enzymatic machinery that set them are crucial regulators that can control cellular proliferation, differentiation, plasticity, and malignancy processes. However, extracellular histones are a double-edged sword because they also damage host tissue and may cause death. Histones bound to platelets, induced calcium influx, and recruited plasma adhesion proteins such as fibrinogen to induce platelet aggregation. Histone H2B proteins have been studied in a variety of species and are easily detected in most species. The reversible ubiquitylation of histone H2B has long been implicated in transcriptional activation and gene silencing. Phosphorylation of H2B serine 32 occurs in normal cycling and mitogen-stimulated cells. Notably, this phosphorylation is elevated in skin cancer cell lines and tissues compared with normal counterparts. HIST2H2BE is a member of the histone H2B family and generates two transcripts through the use of the conserved stem-loop termination motif, and the polyA addition motif... Read More |