Transgene and transposon silencing in Chlamydomonas reinhardtii by a DEAH-Box RNA helicase

被引:227
作者
Wu-Scharf, D [1 ]
Jeong, BR [1 ]
Zhang, CM [1 ]
Cerutti, H [1 ]
机构
[1] Univ Nebraska, Sch Biol Sci & Plant Sci Initiat, Beadle Ctr E211, Lincoln, NE 68588 USA
关键词
D O I
10.1126/science.290.5494.1159
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The molecular mechanism(s) responsible for posttranscriptional gene silencing and RNA interference remain poorly understood. We have cloned a gene (Mut6) from the unicellular green alga Chlamydomonas reinhardtii that is required for the silencing of a transgene and two transposon families, Mut6 encodes a protein that is highly homologous to RNA helicases of the DEAH-box family, This protein is necessary for the degradation of certain aberrant RNAs, such as improperly processed transcripts, which are often produced by transposons and some transgenes.
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页码:1159 / 1162
页数:4
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