Isolation of deletion alleles by G4 DNA-induced mutagenesis

Isolation of deletion alleles by G4 DNA-induced mutagenesis
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DOI:
10.1038/nmeth.1362
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发表时间:
2009-09-01
期刊:
影响因子:
48
通讯作者:
Tijsterman, Marcel
Tijsterman, Marcel
中科院分区:
生物学1区
文献类型:
--
作者:
Pontier, Daphne B.;Kruisselbrink, Evelien;Tijsterman, Marcel

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后生动物基因组包含数千个与鸟嘌呤四重体(G4) DNA特征G(3)N(x)G(3)N(x)G(3)N(x)G(3) N(x)G(3))相匹配的序列链,这是一个本质上具有诱变性的基序,可能是因为它可以在DNA复制过程中形成二级结构。在这里,我们展示了如何以及在多大程度上可以利用这一特征来产生许多秀丽隐杆线虫基因的缺失等位基因。
Metazoan genomes contain thousands of sequence tracts that match the guanine-quadruplex (G4) DNA signature G(3)N(x)G(3)N(x)G(3)N(x)G(3), a motif that is intrinsically mutagenic, probably because it can form secondary structures during DNA replication. Here we show how and to what extent this feature can be used to generate deletion alleles of many Caenorhabditis elegans genes.