L-fucose

L-fucose

[¦el ′fyü‚kōs]
(biochemistry)
C6H12O5 A methyl pentose present in some algae and a number of gums and identified in the polysaccharides of blood groups and certain bacteria. Also known as 6-deoxy-L-galactose;L-fucopyranose;L-galactomethylose;L-rhodeose.
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Fucoidans are complex sulfated polysaccharides consisting mainly of sulfated L-fucose and variable proportions of galactose, mannose, xylose, glucose, rhamnose and uronic acids (Usov & Bilan, 2009).
These polysaccharides usually contain large proportions of L-fucose and sulfate, together with minor amounts of other sugars like xylose, galactose, mannose and glucuronic acid (Ponce et al, 2003).
L-fucose is a rare monosaccharide with limited natural availability and a precursor of complex carbohydrates, as Human Milk Oligosaccharides (HMOs).
glutinins produce a heteropolysaccharide composed of L-fucose and Dgalactosein an approximate molar ratio of 1:1.
Also, negative reaction for urease and L-fucose assimilation differentiated the strain from S.
The specificity of lectin binding was tested by addition of free L-fucose to the AAL solution before addition to the microtiter plate.
The ratio of L-rhamnose, L-fucose, L-galactose, and D-galacturonic acid was 2.
Specifically, the project targets L-fucose and fucosylated oligosaccharides that are very difficult to produce through extraction or chemical synthesis.
5 M solutions of [alpha]-mannose, D-glucose, L-fucose, D-galactose, N-acetyl-glucosamine or N-acetyl-galactosamine which are known competitors of the lectins LCA, Con-A, LTA, BS-1, GSL II and DBA respectively.
typus this sugar has a great importance in the fertilization process because in spite of its small concentration (similar to that of L-fucose, D-galactose and a-GalNAc) in the intact oocyte and isolated envelopes it was the strongest inhibitor of fertilization together with glucose and mannose among the seven sugars tested in this study.