Sustratos de enzimas

Chromogenic substrate specific for α-D-mannosidase. Yields a blue precipitate upon cleavage. Identification of Listeria species.

<p>Aldol® 484 alpha-D-glucopyranoside is a chromogenic and fluorogenic enzyme substrate for ?-glucosidase activity (EC 3.2.1.20, ?-1,4-glucosidase, also known as maltase). The colorless enzyme substrate is cleaved by bacteria producing this enzyme in liquid or solid media, yielding orange color. Green fluorescence is also generated if a suitable matrix is present such as: cellulose acetate filters, polypropylene tubes or microplates and polyethylene vials. Aldol® 484 alpha-D-glucopyranoside can be used under aerobic and anaerobic conditions.</p>

<p>Coelenterazine is the substrate for the enzymes Renilla luciferase, Gaussia luciferase and other luciferase enzymes. Marine organisms like squids, shrimps, fish and jellyfish use coelenterazine to produce spectacular bioluminescence (in analogy with insects which utilize firefly luciferine). Today, coelenterazine is used in numerous applications like immunoassays, ELISA, monitoring of reporter genes, chemiluminescence detection of superoxide anion and peroxynitritein cells or tissues. The substrate is also used in bioluminescence resonance energy transfer (BRET), HTS and protein based methods for Calcium detection. The isolation and structure determination of coelenterazine was reported independently by two different groups in the seventies who discovered the molecule in sea pansy (Renilla reniformis) and in the cnidarian Aequorea victoria, respectively. Interestingly it was also found that the luminescent jellyfish Aequorea victoria does not produce coelenterazine itself but it rather assimilates it through ingestion of small preys like shrimps and copepods.<br>This product Coelenterazine, native, which is provided as a powder, is identical in quality and chemistry to our product Coelenterazine, native, dried.</p>

<p>In vivo bioluminescence imaging (BLI) is limited by the fact that the luminescence signal from native D-Luciferin (maximum emission at about 560 nm) is attenuated in the animal due to absorption and scattering of light below 600 nm in blood and tissues. These shortcomings can be avoided using a red-shifted luciferin derivative (max. em. at 600 nm) like CybLuc. In addition to red shift properties, CybLuc also displays higher lipophilicity and metabolic stability. This make it the ideal luciferin for in vivo studies. Cymit Quimica is the only supplier of commercial CybLuc.</p>

<p>Aldol 515 caprylate hydrochloride is a high-quality fluorogenic substrate that is used for the detection of enzymes in culture media and enzyme substrates. The product has a CAS number of 2484873-14-3 and can be used for food testing, diagnostics, and environmental testing. Aldol 515 caprylate hydrochloride can also be used as a ligand or chromogenic substrate to measure bioluminescence.</p>

<p>5-Amino-3-indoxyl-beta-D-galactopyranoside (AIG) is a chromogenic substrate that is used for the detection of beta-galactosidase activity. AIG is also used in food testing, diagnostics, and environmental testing. The detection of beta-galactosidase activity can be done by either using the fluorogenic substrate 4-methylumbelliferyl galactopyranoside or the bioluminescence system of firefly luciferase and luciferin. This product has a CAS number of 110114-03-0 and a molecular weight of 417.5 g/mol.</p>

<p>Bis(4-methylumbelliferyl)phosphate is a fluorescent probe that can be used for the diagnosis of β-glucosidase. It has a phosphate group and can be used to study phosphodiesterases and phosphodiesters. Bis(4-methylumbelliferyl)phosphate is also a liposomal probe that can be used in kinetic studies. This compound has been shown to inhibit β-glucosidase, which is an enzyme found in human saliva and pancreatic juice, at high concentrations. The inhibition of this enzyme leads to the accumulation of glucose and galactose in the blood, which can lead to diabetes mellitus or cancer.</p>

<p>AquaSpark® Alkaline Phosphatase Substrate is a chemiluminescent substrate for alkaline phosphatase (AP) detection in immunoassays, in particular in ELISA. AquaSpark® Alkaline Phosphatase Substrate is also a suitable substrate for protein (Western) blotting or nucleic acid blotting procedures using AP-conjugated antibodies. AquaSpark® probes offer unique advantages as they can work as single agents, they have ahigher efficiency and sensitivity over currently existing probes.</p>

<p>AquaSpark™ α-D-galactoside is a dioxetane-based substrate for the luminescence detection of α-galactosidase activity. It is the first single-compound chemiluminescent substrate commercially available for the detection of α-galactosidase activity. α-galactosidase assays are used in molecular biology to monitor the transcriptional activity of the GLA gene that is correlated with metabolic diseases or gene mutations. In microbiology the α-galactosidase activity is used to detect specific bacteria such as α-galactosidase positive Salmonella strains (Salmonella Enteritidis RKI 05/07992).</p>

<p>6-Chloro-3-indoxyl palmitate is a high quality, pure chemical reagent that can be used as a substrate for enzyme activity. It is a chromogenic substrate that is used in the detection of esterase activity. 6-Chloro-3-indoxyl palmitate is also used as a fluorogenic substrate in the presence of horseradish peroxidase and hydrogen peroxide to produce chemiluminescence. 6-Chloro-3-indoxyl palmitate has been shown to be an effective bioluminescent substrate for luciferase enzymes, such as firefly luciferase and Renilla luciferase.</p>

<p>The AquaSpark® 515 Singlet Oxygen Probe (SOCL) is a highly selective and sensitive chemiluminescence probe for the detection of singlet oxygen (1O2). The SOCL probe reacts specifically with 1O2 to form an intermediate dioxetane that spontaneously decomposes to emit green light with extraordinary intensity</p>

<p>Alkaline phosphatase (AP) is a widely used marker enzyme in ELISA as the enzyme is easily conjugated with antibodies, is extremely stable, has high catalytic activity and a broad substrate spectrum. Highly sensitive sensing of alkaline phosphatase activity is therefore of great significance for the development of AP-based ELISA platforms. Our AquaSpark® phosphatase substrate is designed for the most sensitive ELISA and Western blot detection methods. AquaSpark® -based substrates work as single reagent without the need for enhancers, co-substrates or any additional reagent as opposite to traditional dioxetanes. In ELISA procedures the AquaSpark® phosphatase substrate solution is applied to the test at the last step of the procedure. Green light is emitted immediately if AP-conjugated (secondary) antibody is bound to its corresponding detecting (first) antibody.</p>

Chemiluminescence phosphatase substrate, broad pH range 6 - 10

Water soluble, chromogenic substrate for visualizing alkaline phosphatase activity. Produces a blueinsoluble end product that is detected visually when used together with nitroblue tetrazolium. The substrate system is versatile and functions in a variety of applications, including Northern, Southern, and Western blotting, in situhybridization, ELISAs and immunohistochemistry.

Chemiluminescence beta-galactosidase substrate

6-Bromo-2-naphthyl-alpha-D-galactopyranoside is a bioluminescent substrate for the enzyme luciferase that has been shown to be useful in detection of phenazines, antibiotics and other compounds in environmental testing. 6-Bromo-2-naphthyl-alpha-D-galactopyranoside can also be used for measurements of total microbial counts and for the measurement of the activity of enzymes such as beta galactosidase. It is also a ligand for the peroxidase enzyme, which makes it useful in staining techniques. 6BARG can be used as a fluorogenic substrate or as an indicator in chromogenic substrates. It is an important reagent for chemiluminescence and can also be used to measure the concentration of various substances.

<p>Please enquire for more information about 3,4-Cyclohexenoesculetine phosphate disodium including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Chromogenic substrate for esterase with C9 activity yielding a lapis colored precipitate upon cleavage.</p>

<p>Please enquire for more information about 5-Bromo-6-chloro-3-indoxyl choline phosphate including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Please enquire for more information about 3,4-Cyclohexenoesculetine-N-acetyl-glucosamine including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>