RRC ID 54597
Author Fujimori T, Matsuda R, Suzuki M, Takenaka Y, Kajiura H, Takeda Y, Ishimizu T.
Title Practical preparation of UDP-apiose and its applications for studying apiosyltransferase.
Journal Carbohydr Res
Abstract UDP-apiose, a donor substrate of apiosyltransferases, is labile because of its intramolecular self-cyclization ability, resulting in the formation of apiofuranosyl-1,2-cyclic phosphate. Therefore, stabilization of UDP-apiose is indispensable for its availability and identifying and characterizing the apiosyltransferases involved in the biosynthesis of apiosylated sugar chains and glycosides. Here, we established a method for stabilizing UDP-apiose using bulky cations as counter ions. Bulky cations such as triethylamine effectively suppressed the degradation of UDP-apiose in solution. The half-life of UDP-apiose was increased to 48.1 ± 2.4 h at pH 6.0 and 25 °C using triethylamine as a counter cation. UDP-apiose coordinated with a counter cation enabled long-term storage under freezing conditions. UDP-apiose was utilized as a donor substrate for apigenin 7-O-β-D-glucoside apiosyltransferase to produce the apiosylated glycoside apiin. This apiosyltransferase assay will be useful for identifying genes encoding apiosyltransferases.
Volume 477
Pages 20-25
Published 2019-5-15
DOI 10.1016/j.carres.2019.03.011
PII S0008-6215(19)30056-4
PMID 30933787
MeSH Carbohydrate Conformation Enzyme Assays / methods* Pentosyltransferases / genetics Pentosyltransferases / metabolism* Uridine Diphosphate Sugars / chemical synthesis* Uridine Diphosphate Sugars / chemistry Uridine Diphosphate Sugars / metabolism*
IF 1.873
Times Cited 1
Resource
Arabidopsis / Cultured plant cells, genes pda01652