中文摘要：

首先构建酿酒酵母BY4741组蛋白H3第14位赖氨酸突变菌株,该位点突变后则不能被乙酰化.然后通过Western blot检测突变菌株和未突变菌株（对照菌株）的H3K4三甲基化.结果表明,H3K14突变菌株中未检测到H3K4三甲基化,而作为对照的未突变菌株能够检验到H3K4三甲基化修饰.该结果显示酿酒酵母组蛋白H3K14乙酰化能够对H3K4三甲基化产生影响.

英文摘要：

Firstly,the mutant strains at H3 lysine 14 of S. cerevisiae BY4741 was constructed. The site could not be acetylated after mutant. Then H3K4 tri-methylations of mutant strains and non-mutant strains（ control strains） were detected by Western blot. The results showed that H3K4 tri-methylations were not found in mutant strains at H3 lysine14,while H3K4 tri-methylations in non-mutant strainsused as control were detected. It suggests that histone H3K14 acetylation can affect H3K4 tri-methylation in S. cerevisiae.