Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Evolution of substrate recognition across a multigene family of glycosyltransferases in Arabidopsis
AU - Lim, E K
AU - Baldauf, S
AU - Li, Y
AU - Elias, L
AU - Worrall, D
AU - Spencer, S P
AU - Jackson, R G
AU - Taguchi, G
AU - Ross, J
AU - Bowles, D J
PY - 2002
Y1 - 2002
N2 - The complete sequence of the Arabidopsis genome enables definitive characterization of multigene families and analysis of their phylogenetic relationships. Using a consensus sequence previously defined for glycosyltransferases that use small-molecular-weight acceptors, 107 gene sequences were identified in the Arabidopsis genome and used to construct a phylogenetic tree. Screening recombinant proteins for their catalytic activities in vitro has revealed enzymes active toward physiologically important substrates, including hormones and secondary metabolites. The aim of this study has been to use the phylogenetic relationships across the entire family to explore the evolution of substrate recognition and regioselectivity of glucosylation. Hydroxycoumarins have been used as the model substrates for the analysis in which 90 sequences have been assayed and 48 sequences shown to recognize these compounds. The study has revealed activity in 6 of the 14 phylogenetic groups of the multigene family, suggesting that basic features of substrate recognition are retained across substantial evolutionary periods.
AB - The complete sequence of the Arabidopsis genome enables definitive characterization of multigene families and analysis of their phylogenetic relationships. Using a consensus sequence previously defined for glycosyltransferases that use small-molecular-weight acceptors, 107 gene sequences were identified in the Arabidopsis genome and used to construct a phylogenetic tree. Screening recombinant proteins for their catalytic activities in vitro has revealed enzymes active toward physiologically important substrates, including hormones and secondary metabolites. The aim of this study has been to use the phylogenetic relationships across the entire family to explore the evolution of substrate recognition and regioselectivity of glucosylation. Hydroxycoumarins have been used as the model substrates for the analysis in which 90 sequences have been assayed and 48 sequences shown to recognize these compounds. The study has revealed activity in 6 of the 14 phylogenetic groups of the multigene family, suggesting that basic features of substrate recognition are retained across substantial evolutionary periods.
KW - Arabidopsis
KW - glucosyltransferases
KW - hydroxycoumarins
KW - phylogeny
KW - plant secondary metabolites
KW - BIOCHEMICAL-CHARACTERIZATION
KW - DRAFT SEQUENCE
KW - UDP-GLUCOSE
KW - GLUCOSYLTRANSFERASE
KW - PLANT
KW - METABOLISM
KW - ACID
KW - IDENTIFICATION
KW - SCOPOLETIN
U2 - 10.1093/glycob/cwg017
DO - 10.1093/glycob/cwg017
M3 - Journal article
VL - 13
SP - 139
EP - 145
JO - Glycobiology
JF - Glycobiology
SN - 1460-2423
IS - 3
ER -