Results 11 to 20 of about 18,371 (245)

Bacterial α-glucan phosphorylases [PDF]

open access: yesFEMS Microbiology Letters, 1999
Although glycogen and other α-1,4-d-glucan storage polysaccharides are present in many bacteria, only few glucan phosphorylases from bacteria have been identified and characterised on the protein or gene level. All bacterial phosphorylases follow the same catalytic mechanisms as their plant and vertebrate counterparts, but differ considerably in terms ...
Reinhard Schinzel, Bernd Nidetzky
openaire   +1 more source

Effect of papulacandin B on β-glucan synthesis in Schizosaccharomyces pombe [PDF]

open access: yesFEMS Microbiology Letters, 1983
The antifungal antibiotic papulacandin β inhibited B(1,3)glucan-synthase activity, in vitro, from Schizosaccharomyces pombe. Levels of β(1,3)glucan-synthase from antibiotic-treated cultures were lower than the control cultures whereas mannan-synthase and β(1,3)glucanase activities were almost unaffected.
Rosa Varona   +2 more
openaire   +1 more source

ULTRASOUND-ASSISTED AND ENZYMATIC-BASED METHOD FOR ISOLATION OF β-GLUCANS FROM OAT BRAN [PDF]

open access: yesBiotechnologia Acta, 2023
β-Glucans are a group of non-starchy polysaccharides, or (1,3),(1,4)-β-D-glucans, that can be found in the cell walls of several species of bacteria, algae, lichens, fungi, and cereal grains.
V. V. Korsa, A. O. Tykhomyrov
doaj   +1 more source

The role of ruminal carboxymethylcellulases in the degradation of β-glucans from cereal grain [PDF]

open access: yesFEMS Microbiology Ecology, 1998
The non-cellulolytic ruminal bacterium, Prevotella bryantii, grew rapidly on water soluble β-glucans, but a mutant deficient in carboxymethylcellulase (CMCase) activity could not. Native activity gels prepared with CMC and β-glucan indicated that the CMCase and β-glucanase activities migrated at similar rates. When a plasmid carrying the P.
Matthew W Fields   +2 more
openaire   +1 more source

Involvement of phosphorylated compounds in stimulation of 1,4-β glucan synthases ofSaprolegnia monoica [PDF]

open access: yesFEMS Microbiology Letters, 1991
The stimulation by ATP of β glucan synthase activities of cell-free extracts of Saprolegnia monoica was enhanced by the presence of glucose-phosphates. These effects were obtained in conditions of 1,4-β glucan synthesis; on the contrary, strong inhibition was observed during 1,3-β glucan production.
Vicent Girard, Michel Fevre
openaire   +1 more source

FT-IR Method Limitations for β-Glucan Analysis

open access: yesMolecules, 2022
β-glucans are known as biological response modifiers. However, different sources can result in structural differences and as a result differences in their biological activity.
Ruslan Bikmurzin   +4 more
doaj   +1 more source

Cyclic diguanylic acid stimulates 1,4-μ-glucan synthase fromSaprolegnia monoica [PDF]

open access: yesFEMS Microbiology Letters, 1991
Abstract 1,4-μ-Glucan synthase activity, but not 1,3-μ-glucan-synthase activity, from Saprolegnia monoica was stimulated by cyclic-diguanylic acid, an immediate activator of Acetobacter xylinum - cellulose synthase. This activator, which increased the V max without modifying the K m for UDP-glucose, was active on solubilized and partially ...
Vincent Girard   +3 more
openaire   +1 more source

Immunotoxicity of soluble β-glucans induced by indomethacin treatment [PDF]

open access: yesFEMS Immunology & Medical Microbiology, 1998
(1 --> 3)-Beta-D-Glucan (beta-glucan) is a biological response modifier that regulates host immune response. However, the side effects of this drug have not been extensively examined. In this study, we found that the combination of a beta-glucan and a nonsteroidal anti-inflammatory drug, indomethacin, induced lethal toxicity in mice. Lethal toxicity of
S, Yoshioka   +4 more
openaire   +2 more sources

Detection of peptidoglycan and β-glucan with silkworm larvae plasma test [PDF]

open access: yesFEMS Immunology & Medical Microbiology, 1996
A method to detect peptidoglycan and (1-->3) beta-D-glucan with silkworm larvae plasma (SLP) derived from the hemolymph of the silkworm, Bombyx mori was developed. SLP contains all of the factors of the pro-phenol oxidase cascade, an important self-defense mechanism of insects.
M, Tsuchiya   +4 more
openaire   +2 more sources

β-Glucans from Trametes versicolor (L.) Lloyd Is Effective for Prevention of Influenza Virus Infection

open access: yesViruses, 2022
Coriolus versicolor (C. versicolor) is a higher fungi or mushroom which is now known by its accepted scientific names as Trametes versicolor (L.) Lloyd. Many studies have shown that β-glucans from C.
Shaohua Shi   +7 more
doaj   +1 more source

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