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调节基因[1](英語:regulator gene)是指用来控制一个或多个其他基因表达的基因。调控序列用于给调节基因编码,通常在转录起始点的5′端。[2]
在原核生物中,调节基因通常用于编码抑制蛋白。阻遏蛋白与operators或启动子结合,阻止RNA聚合酶转录RNA 。[3]
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