title: Oleic acid: an efficient inhibitor of glucosyltransferase.
abstract: Among the extracts from 420 kinds of herbs, Prunus salicina, showing the highest glucosyltransferase inhibition activity, was purified and designated GTI-0163. Structural determination of GTI-0163 revealed it to be an oleic acid-based unsaturated fatty acid. GTI-0163 was an uncompetitive inhibitor of GTase. Among the unsaturated fatty acids, oleic acid showed a significantly higher GTase inhibitory activity than the saturated fatty acids or the ester form of oleic acid. These results strongly suggested that both the number of double bonds and the existence of free carboxyl groups of fatty acids play an important role in GTase inhibitory activity.
authors.affiliation: Division of Biotechnology, Kangwon National University, Chuncheon 200-701, Republic of Korea.
authors.forename: Se-Ra
authors.initials: SR
authors.lastname: Won
authors.forename: Mi-Jung
authors.initials: MJ
authors.lastname: Hong
authors.forename: Yong-Mu
authors.initials: YM
authors.lastname: Kim
authors.forename: Chun Ying
authors.initials: CY
authors.lastname: Li
authors.forename: Jang-Won
authors.initials: JW
authors.lastname: Kim
authors.forename: Hae-Ik
authors.initials: HI
authors.lastname: Rhee
mesh_terms: D004791:Enzyme Inhibitors / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D005964:Glucosyltransferases / Q000037:antagonists & inhibitors*; D019301:Oleic Acid / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology; D027861:Prunus / Q000737:chemistry*
chemical_list: D004791:Enzyme Inhibitors; D010936:Plant Extracts; D019301:Oleic Acid; D005964:Glucosyltransferases