Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs

O-Methylation of plant secondary metabolites, which plays important roles in the biosynthesis of various natural products and function of plants, is catalyzed by a superfamily of S-adenosyl- L-methionine-dependent O-methyltransferases (OMTs). The objectives of the research were to isolate and charac...

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Main Author: Lam, Kevin Chee Loong
Format: Others
Published: 2005
Online Access:http://spectrum.library.concordia.ca/8478/1/MR10205.pdf
Lam, Kevin Chee Loong <http://spectrum.library.concordia.ca/view/creators/Lam=3AKevin_Chee_Loong=3A=3A.html> (2005) Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs. Masters thesis, Concordia University.
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spelling ndltd-LACETR-oai-collectionscanada.gc.ca-QMG.84782013-10-22T03:45:49Z Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs Lam, Kevin Chee Loong O-Methylation of plant secondary metabolites, which plays important roles in the biosynthesis of various natural products and function of plants, is catalyzed by a superfamily of S-adenosyl- L-methionine-dependent O-methyltransferases (OMTs). The objectives of the research were to isolate and characterize OMT-like cDNA clones from Arabidopsis thaliana and Serratula tinctoria , and carry out a phylogenomic analysis of well characterized OMTs to develop a framework phylogenetic tree for predicting putative function and substrate specificity of newly identified gene sequences. Two OMT-like cDNA clones of A. thaliana obtained from TAIR (The Arabidopsis Information Resources) were heterologously expressed for molecular and biochemical characterization. The recombinant proteins did not show enzymatic activity with the substrates tested suggesting that these two putative OMTs genes could be pseudogenes. S. tinctoria accumulates small amounts of 3-methylquercetin as an intermediate for the synthesis of 3,3'-dimethyl derivative. 2005 Thesis NonPeerReviewed application/pdf http://spectrum.library.concordia.ca/8478/1/MR10205.pdf Lam, Kevin Chee Loong <http://spectrum.library.concordia.ca/view/creators/Lam=3AKevin_Chee_Loong=3A=3A.html> (2005) Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs. Masters thesis, Concordia University. http://spectrum.library.concordia.ca/8478/
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format Others
sources NDLTD
description O-Methylation of plant secondary metabolites, which plays important roles in the biosynthesis of various natural products and function of plants, is catalyzed by a superfamily of S-adenosyl- L-methionine-dependent O-methyltransferases (OMTs). The objectives of the research were to isolate and characterize OMT-like cDNA clones from Arabidopsis thaliana and Serratula tinctoria , and carry out a phylogenomic analysis of well characterized OMTs to develop a framework phylogenetic tree for predicting putative function and substrate specificity of newly identified gene sequences. Two OMT-like cDNA clones of A. thaliana obtained from TAIR (The Arabidopsis Information Resources) were heterologously expressed for molecular and biochemical characterization. The recombinant proteins did not show enzymatic activity with the substrates tested suggesting that these two putative OMTs genes could be pseudogenes. S. tinctoria accumulates small amounts of 3-methylquercetin as an intermediate for the synthesis of 3,3'-dimethyl derivative.
author Lam, Kevin Chee Loong
spellingShingle Lam, Kevin Chee Loong
Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
author_facet Lam, Kevin Chee Loong
author_sort Lam, Kevin Chee Loong
title Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
title_short Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
title_full Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
title_fullStr Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
title_full_unstemmed Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs
title_sort characterization of o-methyltransferase (omt)-like cdna clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant omts
publishDate 2005
url http://spectrum.library.concordia.ca/8478/1/MR10205.pdf
Lam, Kevin Chee Loong <http://spectrum.library.concordia.ca/view/creators/Lam=3AKevin_Chee_Loong=3A=3A.html> (2005) Characterization of O-methyltransferase (OMT)-like cDNA clones from arabidopsis thaliana and serratula tinctoria, and phylogenomic analysis of plant OMTs. Masters thesis, Concordia University.
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