: structures, functions, and mechanisms.
Native grapevine enzymes called glycosyltransferases
bind sugar molecules to the volatile phenols, rendering them odorless and hidden within the juice.
In terminally modified O-antigens synthesized by the ABC transporter dependent pathway, the strain specific modal length of the O-antigen is controlled by the enzyme that makes the terminal modifications, which halt the activity of the glycosyltransferases
that add the repeat units [114, 118].
The dbCAN CAZyme annotation program (http://csbl.bmb.uga.edu/dbCAN/)  with default parameters and the Carbohydrate Active Enzymes (CAZy) database v6.0 (http://www.cazy.org) were adopted to perform the functional annotations for carbohydrate-active modules and ligninolytic enzymes, which include glycoside hydrolases (GHs), glycosyltransferases
(GTs), polysaccharide lyases (PLs), carbohydrate esterases (CEs), and auxiliary activities (AAs).
Maturation reactions continue in endoplasmic reticulum and Golgi lumens by the successive actions of glycosidases and glycosyltransferases
. The structure of the common glycan precursor changes.
Specific topics include glycosyltransferases
and glycan-processing enzymes, proteoglycans and sulfated glycosamingoglycans, the discovery and classification of glycan-binding proteins, glycans in acquired human diseases, and the chemoenzymatic synthesis of glycans and glycoconjugates.
Differences in the molecular weight between wild-type and the recombinant counterpart could be associated with the hypermannosylation observed in yeast, while the differences in the molecular weight among the recombinant CBHII could be associated with several factors of the culture conditions that affect the expression of glycosyltransferases
hispanic ATCC33960 has been completed; HAH_1661, HAH_1662, HAH_1663, and HAH_1667 were all annotated as glycosyltransferases
in a polysaccharide biosynthesis gene cluster .
DeAngelis, "Hyaluronan synthases: a decade-plus of novel glycosyltransferases
," Journal of Biological Chemistry, vol.
Remarkably, the diversity of gangliosides is generated by only a few glycosyltransferases
and sialyltransferases that act within a combinatorial biosynthetic pathway .
Multiple posttranslational modifications occur in the Golgi complex, including the addition of disaccharides as well as epimerisation and sulfation of saccharide units, all performed by various glycosyltransferases
, epimerases, and sulfotransferases .
The secretor gene encodes for enzymes (glycosyltransferases
), which become activein mucin-secreting cells like goblet and mucous cells of mucous membranes and different glands, resulting in the secretion of the corresponding blood group antigens in the body fluids .