Identification of Adducts Formed by Reaction of Purine Bases with a Mutagenic Anthraquinone, Lucidin: Mechanism of Mutagenicity by Anthraquinones Occurring in Rubiaceae Plants.
作者:Yoko KAWASAKI、Yukihiro GODA、Hiroshi NOGUCHI、Takashi YAMADA
DOI:10.1248/cpb.42.1971
日期:——
A mutagenic anthraquinone, lucidin (1), occurring in Rubiaceae plants, reacted with nucleic bases under physiological conditions to form adducts. The order of the reactivity is as follows: adenine > guanine >> pyrimidine bases approximately 0. By spectroscopic analyses, the isolated purine base adducts were identified as condensed reactants at the benzylic position of 1 with a nitrogen atom of a purine
发生在茜草科植物中的一种诱变的蒽醌,lucidin(1)在生理条件下与核酸碱基反应形成加合物。反应的顺序如下:腺嘌呤>鸟嘌呤>嘧啶碱基大约为0。通过光谱分析,分离出的嘌呤碱基加合物被鉴定为在1的苄基位置与嘌呤碱基的氮原子的缩合反应物。结果表明形成外亚甲基化合物作为亲电子中间体的可能性很大。