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单词 Overlapping gene
释义

Overlapping gene

中文百科

重叠基因

如图所示,Φ174噬菌体基因组中具有重叠基因
Tandem out-of-phase overlap of the human mitochondrial genes ATP8 (+1 frame, in red) and ATP6 (+3 frame, in blue)[2]
Overlapping genes in the bacteriophage ΦX174 genome. There are 11 genes in this genome (A, A*, B-H, J, K). Genes B, K, E overlap with genes A, C, D.

重叠基因(Overlapping genes),亦作「多重编码」(dual coding),是指两个或两个以上的基因共享一段DNA串行的现象。重叠基因的存在使得一段核苷酸串行可以编码一种以上的表达产物。重叠基因使一段DNA串行翻译出的mRNA能被不同的读框阅读,或者使一个基因的反义链的某一部分能成为另一个基因的正义链的一部分。科学家已在细菌,病毒,甚至真核细胞/真核生物中发现了重叠基因的存在研究表明,在细菌中,基因组中有三分之一的部分含有重叠基因。

英语百科

Overlapping gene 重叠基因

Tandem out-of-phase overlap of the human mitochondrial genes ATP8 (+1 frame, in red) and ATP6 (+3 frame, in blue)[2]
Overlapping genes in the bacteriophage ΦX174 genome. There are 11 genes in this genome (A, A*, B-H, J, K). Genes B, K, E overlap with genes A, C, D.
如图所示,Φ174噬菌体基因组中具有重叠基因

An overlapping gene is a gene whose expressible nucleotide sequence partially overlaps with the expressible nucleotide sequence of another gene. In this way, a nucleotide sequence may make a contribution to the function of one or more gene products.

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