强化子 Enhancer (genetics)
（重定向自Nucleic acid regulatory sequence）
强化子（英语：Enhancer）又可译为增强子，是DNA上一小段可与蛋白质（反式作用因子；trans-acting factor）结合的区域，与蛋白质结合之后，基因的转录作用将会加强。强化子可能位于基因上游，也可能位于下游。且不一定接近所要作用的基因，甚至不一定与基因位于同一染色体。这是因为染色质的缠绕结构，使串行上相隔很远的位置也有机会相互接触。
Nucleic acid regulatory sequence
中文百科
英语百科
Enhancer (genetics) 强化子
（重定向自Nucleic acid regulatory sequence）
In genetics, an enhancer is a short (50-1500 bp) region of DNA that can be bound by proteins (activators) to activate transcription of a gene. These proteins are usually referred to as transcription factors. Enhancers are generally cis-acting, located up to 1 Mbp (1,000,000 bp) away from the gene and can be upstream or downstream from the start site, and either in the forward or backward direction. There are hundreds of thousands of enhancers in the human genome.
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