AB05831 - CAS 105265-96-1
Catalog number: 105265-96-1
Category: Inhibitor
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An analogue of deoxynojirimycin, was found to be a potent inhibitor of a number of N-acetylglucosaminidases.
White solid
AB05831; AB05831; AB05831; 2-ADN; DGJNAc; 2-Acetamido-1,2-dideoxynojirimycin; 1,2-dideoxy-2-N-acetamido-nojirimycin; 2-Acetamido-1,5-imino-1,2,5-trideoxy-D-glucitol
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1.Sialylation of N-glycans on the recombinant proteins expressed by a baculovirus-insect cell system under beta-N-acetylglucosaminidase inhibition.
Watanabe S;Kokuho T;Takahashi H;Takahashi M;Kubota T;Inumaru S J Biol Chem. 2002 Feb 15;277(7):5090-3. Epub 2001 Dec 6.
We investigated the ability of a baculovirus-insect cell system to produce sialylated glycoproteins. Despite the presence of enzymes for synthesizing complex-type N-glycans, the most frequent structure of insect N-glycan is the paucimannosidic type, Man(3)GlcNAc(2)(+/-Fuc). The reason for the overwhelming assembly of paucimannosidic N-glycans is not yet well understood. We hypothesized that this predominance might be due to insect-specific, Golgi-associated beta-N-acetylglucosaminidase (GlcNAcase)-mediated removal of N-acetylglucosamine residues from the precursor N-glycan, thereby preventing its galactosylation and terminal sialylation. As we expected, the suppression of intrinsic GlcNAcase activity with a specific inhibitor, 2-acetamido-1,2-dideoxynojirimycin, allowed the accumulation of sialylated glycoproteins in the supernatants of insect cell cultures after baculoviral infection. Our observation indicates that GlcNAcase-dependent depletion of N-acetylglucosamine residues from intermediate N-glycans is critical for the assembly of paucimannosidic N-glycans in insect cells and, more importantly, that insect cells (under specific conditions) retain the ability to construct sialylated N-glycans like those in mammalian cells.
2.Bovine N-acetyl-beta-D-glucosaminidase: affinity purification and characterization of its active site with nitrogen containing analogs of N-acetylglucosamine.
Legler G;Lüllau E;Kappes E;Kastenholz F Biochim Biophys Acta. 1991 Oct 25;1080(2):89-95.
Two N-acetylglucosaminidases were isolated from bovine kidney with a three step procedure featuring affinity purification on 2-acetamido-1,2,5-trideoxy-1,5-iminoglucitol (2-acetamido-1,2-dideoxynojirimycin, II). The major isoenzyme, Hex A, is an alpha, beta hetero-dimer (57 and 52 kDa) with isoelectric points from pH 5.3 to 6.6 and comprised about 80% of the total activity. Its kinetic properties with respect to discrimination between N-acetylglucosaminide, N-acetylgalactosaminide and the corresponding 6-sulfate ester were similar to human hexosaminidase A. The minor isoenzyme, Hex B, a homodimer, isoelectric points 7.0 to 7.4, was similar to Hex A but was without detectable activity with methylumbelliferyl-N-acetyl-beta-glucosaminide-6-sulfate. Inhibition studies with Hex A were carried out with 2-acetamido-2,5-dideoxy-1,5-imino-D-glucopyranose (2-acetamido-2-deoxynojirimycin, (1), the corresponding 1,5-lactam (III), with II and its N,N-dimethyl derivative, and with 2-acetamido-2-deoxy-D-glucono-1,5-lactone (IV). In comparison with N-acetylglucosamine (Ki 1.9 mM) Hex A was inhibited 10(6)-fold better by I, 2600-fold better by II, 2900-fold better by III, and 55,000-fold better by IV.
3.Conversion of the carbohydrate structures of glycoproteins in roots of Raphanus sativus using several glycosidase inhibitors.
Mega T J Biochem. 2004 Oct;136(4):525-31.
An attempt was made to convert the N-glycan structures in Raphanus sativus seeds during germination with a view to develop a method for regulating the N-glycan structures using glycosidase inhibitors. The N-glycan structures of glycoproteins in the roots of seedlings germinated for three days were analyzed by hydrazinolysis followed by N-acetylation, pyridylamination and HPLC. Pyridylaminated sugar chains obtained in the absence of the inhibitors had plant type structures consisting of Man(3)FucXylGlcNAc(2)(M3FX), Man(5-9)GlcNAc(2)(high-Man) and GlcNAc(1-2)Man(3)FucXylGlcNAc(2)(GnM3FX and Gn2M3FX). When germinated in the presence of a glucosidase inhibitor (castanospermine or deoxynojirimycin), the amount of glucosyl high-Man-type structure increased and plant growth was inhibited. When germinated in the presence of a mannosidase inhibitor (swainsonine or deoxymannojirimycin), the amount of the high-Man-type structure increased and that of M3FX was low, and the growth was normal. In the presence of 2-acetamido 1, 2 di-deoxynojirimycin, those of GnM3FX and Gn2M3FX increased and the growth was normal. These results show that the N-glycan processing in both the endoplasmic reticulum (ER) and Golgi apparatus can be controlled artificially using glycosidase inhibitors, and that the glucosidase inhibitors could be useful for the study of the function of N-glycans in plants.
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CAS 105265-96-1 AB05831

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