A glucose acceptor was isolated from soya beans by extraction with chloroform/methanol (2:1, v/v), followed by DEAE-cellulose column chromatography of the extract. This acceptor could not be distinguished from liver dolichyl monophosphate by t.l.c. It could replace dolichyl monophosphate as a mannose acceptor with a liver enzyme and its glucosylated derivative could replace dolichyl monophospha...

To optimize Bacillus subtilis as a production strain for proteins and low molecular substances by genome engineering, we developed a markerless gene deletion system. We took advantage of a general property of the phosphoenolpyruvate-dependent phosphotransferase system (PTS), in particular the mannose PTS. Mannose is phosphorylated during uptake by its specific transporter (ManP) to mannose 6-ph...

Abstract Background Identifying lignocellulose recalcitrant factors and exploring their genetic properties are essential for enhanced biomass enzymatic saccharification in bioenergy crops. Despite modification of major wall polymers has been implemented reduced recalcitrance engineered crops, it could most cause a penalty plant growth yield. Alternatively, is increasingly considered to improve ...

Purpose: The mannose-binding lectin pathway of innate immunity is part of the first line of defense against microorganisms. Variations in mannose-binding lectin levels or activity are caused by single-nucleotide polymorphisms in the promoter region. Mannosebinding lectin may play a role as a phase reactant due to inflammatory processes related to cancer disease. Such inflammatory processes are ...

The structure of the N-linked oligosaccharides attached to antithrombin (AT) has been shown to affect its anticoagulant activity and pharmacokinetics. Human AT has biantennary complex-type oligosaccharides with the unique feature of lacking a core fucose, which affects its biological activities by changing its heparin-binding affinity. In human plasma, AT circulates as a mixture of the α-form b...

In acidified water solutions of molybdate, aldoses epimerize under the formation of equilibrium mixtures in which the epimer having trans relationship of the hydroxyl groups at C-2 and C-3 predominates. The epimerization of both D-glucose and D-mannose gives the equilibrium mixture of D-glucose and D-mannose in the ratio 75 25. A tentative mechanism for this reaction is suggested and the prepar...

Guanosine diphosphate mannose first was isolated by Cabib and Leloir (1) from yeast. Since then it has been reported in hen oviduct (a), molds (3, 4), red algae (5), mammary gland (6), and the milk of sheep, goat, and pig (7). The enzyme catalyzing guanosine diphosphate mannose synthesis was reported by Munch-Petersen (8) to occur in yeast, and is known as guanosine diphosphate mannose pyrophos...

The direct structural modification of GDP-mannose via the bromination and Suzuki-Miyaura cross-coupling of the unprotected sugar-nucleotide, to produce 8-substituted fluorescent analogues of GDP-mannose.

Cells infected with a temperature-sensitive mutant of vesicular stomatitis virus, ts045, or transfected with the plasmid vector pdTM12 produce mutant forms of the G protein that remain within the ER. The mutant G proteins were isolated by immunoprecipitation from cells metabolically labeled with [2-3H]mannose to facilitate analysis of the protein-linked oligosaccharides. The 3H-labeled glycopep...

We describe a new and improved enzymatic assay for determining the concentration of D-mannose in sera. Serum D-glucose is selectively converted to glucose-6 phosphate with the highly specific thermostable glucokinase (EC 2.7.1.2) from Bacillus stearothermophilus. The anionic reaction products and excess substrates are removed by a rapid and simple anion-exchange chromatography step in microcent...