英语词汇sigma factor怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	sigma factor
释义	sigma factorn.（名词） A protein component of RNA polymerase that determines the specific site on DNA where transcription begins.Σ因子：核糖核酸聚合酶的蛋白质成份，决定脱氧核糖核酸转录开始的特定位置
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