Microbial fructosyltransferases and the role of fructans

Microbial fructosyltransferases and the role of fructans

Microbial fructosyltransferases are polymerases that are involved in microbial fructan (levan, inulin and fructo-oligosaccharide) biosynthesis. Structurally, microbial fructosyltransferase proteins share the catalytic domain of glycoside hydrolases 68 family and are grouped in seven phylogenetically...

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Bibliographic Details
Published in:Journal of applied microbiology Vol. 106; no. 6; pp. 1763 - 1778
Main Authors: Velázquez-Hernández, M.L, Baizabal-Aguirre, V.M, Bravo-Patiño, A, Cajero-Juárez, M, Chávez-Moctezuma, M.P, Valdez-Alarcón, J.J
Format: Journal Article
Language:English
Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01-06-2009
Blackwell Publishing Ltd
Blackwell
Subjects:
Bacteria - enzymology
Bacteria - genetics
Bacteria - metabolism
biofilm
Biological and medical sciences
Carbohydrate Metabolism
fructan
Fructans - biosynthesis
fructosyltransferase
Fundamental and applied biological sciences. Psychology
Gene Expression Regulation
Hexosyltransferases - chemistry
Hexosyltransferases - genetics
inulin
inulosucrase
levan
levansucrase
Microbiology
Operon
fructan
Enzyme
Levansucrase
Applied microbiology
Transferases
Glycosyltransferases
levan
fructosyltransferase
Inulosucrase
Inulin
Biofilm
Hexosyltransferases
Microorganism
Prebiotic
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Summary:Microbial fructosyltransferases are polymerases that are involved in microbial fructan (levan, inulin and fructo-oligosaccharide) biosynthesis. Structurally, microbial fructosyltransferase proteins share the catalytic domain of glycoside hydrolases 68 family and are grouped in seven phylogenetically related clusters. Fructosyltransferase-encoding genes are organized in operons or in clusters associated with other genes related to carbohydrate metabolism or fructosyltransferase secretion. Fructosyltransferase gene expression is mainly regulated by two-component systems or phosphorelay mechanisms that respond to sucrose availability or other environmental signals. Microbial fructans are involved in conferring resistance to environmental stress such as water deprivation, nutrient assimilation, biofilm formation, and as virulence factors in colonization. As a result of the biological and industrial importance of fructans, fructosyltransferases have been the subject of extensive research, conducted to improve their enzymatic activity or to elucidate their biological role in nature.
Bibliography:http://dx.doi.org/10.1111/j.1365-2672.2008.04120.x
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ISSN:1364-5072
1365-2672
DOI:10.1111/j.1365-2672.2008.04120.x