求助文献一篇,非常感谢! & p0 R* t% g0 \& DGenetic control of metabolism of mutagenic purine base analogs 6-hydroxylaminopurine and 2-amino-6-hydroxylaminopurine in yeast Saccharomyces cerevisiae]. 4 N$ Q6 I9 n u) s9 ~连接http://www.springerlink.com/index/5vt17385465n72h2.pdf