RRC ID 3461
著者 Tsukioka H, Takahashi M, Mon H, Okano K, Mita K, Shimada T, Lee JM, Kawaguchi Y, Koga K, Kusakabe T.
タイトル Role of the silkworm argonaute2 homolog gene in double-strand break repair of extrachromosomal DNA.
ジャーナル Nucleic Acids Res
Abstract The argonaute protein family provides central components for RNA interference (RNAi) and related phenomena in a wide variety of organisms. Here, we isolated, from a Bombyx mori cell, a cDNA clone named BmAGO2, which is homologous to Drosophila ARGONAUTE2, the gene encoding a repressive factor for the recombination repair of extrachromosomal double-strand breaks (DSBs). RNAi-mediated silencing of the BmAGO2 sequence markedly increased homologous recombination (HR) repair of DSBs in episomal DNA, but had no effect on that in chromosomes. Moreover, we found that RNAi for BmAGO2 enhanced the integration of linearized DNA into a silkworm chromosome via HR. These results suggested that BmAgo2 protein plays an indispensable role in the repression of extrachromosomal DSB repair.
巻・号 34(4)
ページ 1092-101
公開日 2006-1-1
DOI 10.1093/nar/gkj507
PII 34/4/1092
PMID 16478716
PMC PMC1368654
MeSH Amino Acid Sequence Animals Argonaute Proteins Bombyx / cytology Bombyx / genetics* Bombyx / metabolism Cells, Cultured Chromosomes / metabolism Cloning, Molecular DNA Damage DNA Repair* Drosophila Proteins / chemistry Expressed Sequence Tags Genes, Insect Insect Proteins / chemistry Insect Proteins / genetics Insect Proteins / physiology* RNA Interference RNA, Messenger / metabolism RNA-Induced Silencing Complex / chemistry RNA-Induced Silencing Complex / genetics RNA-Induced Silencing Complex / physiology* Recombination, Genetic Sequence Homology, Amino Acid
IF 11.502
引用数 16
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
カイコ EST database