Evolutionary conservation of a unique amino acid sequence in human DICER protein essential for binding to Argonaute family proteins

Takashi Sasaki, Nobuyoshi Shimizu

研究成果: Article査読

20 被引用数 (Scopus)

抄録

The Argonaute family and DICER proteins are major key proteins involved in the RNA-mediated gene silencing mechanism of various species. In this mechanism, cleavage of messenger RNAs (mRNA) or suppression of mRNA translation takes place via small RNAs that are uniquely processed by DICER. Previously, we demonstrated that human Argonaute family proteins bind to DICER. In this study, we identified a unique amino acid sequence of 127 amino acids in the RIBOc-A domain of human DICER protein as a "binding site" to Argonaute proteins. Comparative genomics analysis revealed that this unique amino acid sequence is highly conserved in the vertebrates, but not found in the non-vertebrate species. Significant difference in the RIBOc-A domain of DICER protein between vertebrate and non-vertebrate species may help exploring the functional complexity in the RNA-mediated gene silencing mechanism.

本文言語English
ページ(範囲)312-320
ページ数9
ジャーナルGene
396
2
DOI
出版ステータスPublished - 2007 7 15

ASJC Scopus subject areas

  • 遺伝学

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