Substrats d'enzymes

5-Bromo-4-chloro-3-indolyl a-D-maltopyranoside is a chromogenic substrate used to detect the specific enzymatic activity of alpha-glucosidase. After cleavage, 5-bromo-4-chloro-indoxyl is released, resulting in a blue to blue-green color change in bacterial colonies or media. 5-Bromo-4-chloro-3-indolyl a-D-maltopyranoside is used in Pompe disease screening and glycogen storage disorder diagnosis.

Water soluble substrate for firefly luciferase.

Bioluminescent substrate for luciferase

4-Trifluoromethylumbelliferyl-beta-D-galactopyranoside is a fluorogenic substrate for beta-galactosidase. It is used in the detection of beta-galactosidase activity in cell lysates and culture media, as well as in food testing. This compound has been shown to be highly pure, with a purity greater than 98%. 4-Trifluoromethylumbelliferyl-beta-D-galactopyranoside has also been shown to have high chemiluminescence, making it an ideal candidate for use in diagnostics.

Histochemical substrate for esterase

A substrate for alkaline phosphatase yielding a blue insoluble product upon cleavage. Colour can be further enhanced when used together with Nitroblue tetrazolium. The substrate system is versatile and has functions in a variety of applications, including Northern, Southern, and Western blotting, in situ hybridization, ELISAs, microarray and immunohistochemistry. The micronized structure enhances solubility.

5-Bromo-4-Chloro-3-Indoxyl-N-Acetyl-Beta-D-Galactosaminide is a chromogenic substrate for detecting beta-galactosidase and GalNAc-transferase enzymes. Upon hydrolysis by the enzyme, it produces a blue-green colored compound that can be detected visually or measured spectrophotometrically. This substrate is useful in characterizing the activity of Beta-Galactosidase and GalNAc-transferase enzymes involved in glycobiology research and diagnostic applications.

Esculetin-7-beta-D-galactopyranoside, also known as 6,7-Dihydroxycoumaryl-7-beta-D-galactopyranoside, is a fluorogenic substrate used in the detection of beta-galactosidase activity. This coumarin derivative, when hydrolyzed, yields esculetin (6,7-dihydroxycoumarin) which, in the presence of iron salts, forms a brown-black complex.

4-Chloro-3-indoxyl-1,3-diacetate is a fluorogenic or chromogenic substrate used in food testing. It is also an enzyme substrate that can be used to detect the presence of bioluminescence. 4-Chloro-3-indoxyl-1,3-diacetate has been shown to have high purity and high quality for use in diagnostic kits. 4-Chloro-3-indoxyl-1,3-diacetate is a ligand that is conjugated with other molecules to form complexes for use in fluorescence and chemiluminescence experiments.

4-Nitrophenyl O-(N-acetyl-a-neuraminosyl)-(2,3)-O-b-D-galactopyranosyl-(1,3)-2-acetamido-2-deoxy-a-D-galactopyran oxide is a fluorogenic substrate that is used in the detection of glycosidases. It has been shown to be an excellent ligand for the enzyme beta galactosidase, which cleaves the glycan substrate 4NPOBGPA into 4NP and O-(N acetyl) neuraminic acid. 4NPOBGPA can be used as a chromogenic substrate for detecting beta galactosidase activity and can also be conjugated to other fluorescent molecules. This product is high purity and high quality.

4-Methylumbelliferyl 2-acetamido-2-deoxy-alpha-D-glucopyranoside is a fluorogenic substrate for alpha-N-acetylglucosaminidase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl 2-acetamido-2-deoxy-alpha-D-glucopyranosideas a substrate for measuring the alpha-N-acetylglucosaminidase activity is used for Sanfilippo syndrome B screening and mucopolysaccharidosis diagnosis.

Chromogenic sulfatase substrate

Fluorogenic substrate for beta-glucosidase yielding a blue fluorescent solution. Used for the detection of beta-glucosidase as an indicator of Enterococci.

4-MU-Gal-6S (M4A) is a fluorogenic substrate of galactose-6-sulfate sulfatase (GALNS), used for the diagnosis of Mucopolysaccharidosis IV type A (MPS IV A). MPS IV, also known as Morquio syndrome, is a rare metabolic disorder in which the human body cannot process glycosaminoglycans (GAGs). MPS IV A is caused by the deficiency of the enzyme N-acetyl-galactosamine-6-sulfatase resulting in accumulation of keratan and chondroitin sulfate in tissues. M4A is used as the GALNS substrate in the anti-lysosomal enzyme antibody assay for the treatments of lysosomal storage disorders (LSDs) with enzyme replacement therapies (ERTs).

4-Nitrophenyl 2-acetamido-4-O-(2-acetamido-2-deoxy-b-D-glucopyranosyl)-2-deoxy-a-D-galactopyranoside is an enzyme substrate that is used in the detection of phenylalanine, tyrosine, and tryptophan. It is also used for environmental testing, bioluminescence, culture media, chemiluminescence, fluorogenic substrate, food testing, diagnostics and other applications.

1-Naphthyl b-D-galactopyranoside is a chromogenic substrate used to detect the presence of beta-galactosidase enzymes. The enzyme cleaves the substrate to produce a colored product that can be quantified and visualized. This substrate is commonly used in applications such as the detection of lacZ gene expression in bacterial colonies or in histochemical staining of tissues to identify beta-galactosidase activity.

2-Chloro-4-nitrophenyl b-D-maltoside is a fluorescent substrate used in diagnostic kits. It is used to detect the presence of beta-glucuronidase enzymes, which are found in many bacteria and fungi. 2-Chloro-4-nitrophenyl b-D-maltoside has been shown to be a superior substrate for beta-glucuronidase as it can be used at lower concentrations and is more stable than other substrates. The enzyme hydrolyzes the 2,4 nitrophenyl ester bond and releases the fluorogenic product 4-(2'-hydroxyethyl)benzene diazonium chloride (HED). This product emits light under ultraviolet light, making it ideal for use in Bioluminescence Assays.

4-Methylumbelliferyl-beta-L-fucopyranoside is a fluorogenic substrate that is used in food testing. It also has uses as a chromogenic substrate and a ligand for biological studies. 4-Methylumbelliferyl-beta-L-fucopyranoside is a conjugate of 4-methylumbelliferone and beta-D-fucopyranosyl ester, which is an enzyme substrate for the detection of phosphatases. This product can be used to detect the activity of phosphatase enzymes in various media, including culture media, environmental testing, and staining. 4MUFBPY also has chemiluminescent properties that can be used for bioluminescence assays.