Recombination between similar but not identical DNA sequences during yeast transformation occurs within short stretches of identity

Recombination between similar but not identical DNA sequences during yeast transformation occurs within short stretches of identity
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酵母转化过程中相似但不相同的 DNA 序列之间的重组发生在短的同一性范围内

DOI:
10.1016/0092-8674(92)90434-e
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发表时间:
1992
期刊:
影响因子:
64.5
通讯作者:
A. Nicolas
A. Nicolas
中科院分区:
生物学1区
文献类型:
--
作者:
C. Mézard;D. Pompon;A. Nicolas

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相似但不相同的DNA序列之间的相互作用在基因和基因组的进化中起着重要的生物学作用。为了深入了解遗传重组的分子机制,我们研究了S.酿酒酵母在转化过程中。我们发现,同源重组DNA重组效率高。在两个哺乳动物细胞色素P450 cDNA之间获得了杂交序列,共享73%的同一性,在酵母ARG 4基因与其人同源性cDNA之间获得了杂交序列,共享52%的同一性。测序数据显示,优选的重组事件是对应于DNA序列的总体比对的重组事件,并且接头在可变长度(2-21 nt)的同一性延伸内。我们认为,这些事件发生的一个传统的同源重组机制。
Interactions between similar but not identical (homeologous) DNA sequences play an important biological role in the evolution of genes and genomes. To gain insight into the underlying molecular mechanism(s) of genetic recombination, we have studied inter- and intramolecular homeologous recombination in S. cerevisiae during transformation. We found that homeologous DNAs recombine efficiently. Hybrid sequences were obtained between two mammalian cytochromeP450 cDNAs, sharing 73% identity, and between the yeastARG4gene and its human homeologous cDNA, sharing 52% identity. Sequencing data showed that the preferred recombination events are those corresponding to the overall alignment of the DNA sequences and that the junctions are within stretches of identity of variable length (2–21 nt). We suggest that these events occur by a conventional homologous recombination mechanism.
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
作者:
Johnson,AW;Kolodner,RD
通讯作者: Kolodner,RD
DOI: --
发表时间: 1988
期刊: The Journal of biological chemistry
影响因子: --
作者:
Bauer,GA;Heller,HM;Burgers,PM
通讯作者: Burgers,PM
DOI: --
发表时间: 1989-07
期刊: Genetics
影响因子: 3.3
作者:
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通讯作者: N. Rudin;E. Sugarman;J. Haber
DOI: 10.1073/pnas.84.16.5560
发表时间: 1987
影响因子: 11.1
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通讯作者: Morrison,PT
DOI: --
发表时间: 1988
期刊: The Journal of biological chemistry
影响因子: --
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