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Uirusu. 2004 Dec;54(2):161-7.

[Virus-induced expression of type I interferon genes].

[Article in Japanese]

Author information

  • 1Department of Tumor Cell Biology, Tokyo Metropolitan Institute of Medical Science, Tokyo Metropolitan Organization for Medical Research 3-18-22, Honkomagome, Bunkyo-ku, Tokyo 113-8613 Japan. yoneyama@rinshoken.or.jp

Abstract

Intracellular double-stranded (ds) RNA is a major sign of replication for many viruses. Host mechanisms detect the dsRNA and provoke antiviral responses. Recently, we identified retinoic acid inducible gene-I (RIG-I), which encodes a DExD/H box RNA helicase containing the caspase recruitment domain (CARD) as a critical regulator for dsRNA-induced signaling. The helicase domain with intact ATPase activity is responsible for recognition of dsRNA, and the CARD transmits downstream signals, resulting in the activation of genes including type I interferons. In this review, we discuss the function of RIG-I in antiviral innate immunity.

PMID:
15745153
[PubMed - indexed for MEDLINE]
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