A new twist on RNA helicases: DExH/D box proteins as RNPases - PubMed (original) (raw)

Review

doi: 10.1038/84091.

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Review

A new twist on RNA helicases: DExH/D box proteins as RNPases

B Schwer. Nat Struct Biol. 2001 Feb.

Abstract

DExH/D box proteins are required for the major transactions of RNA, including mRNA synthesis, pre-mRNA splicing, ribosome biogenesis, translation and RNA decay. In the popular imagination, DExH/D box proteins have become synonymous with 'RNA helicases', which are enzymes that unwind duplex RNAs in concert with the hydrolysis of nucleoside triphosphates (NTPs). But all DExH/D box proteins may not be RNA helicases and the energy of NTP hydrolysis by DExH/D box proteins may be harnessed for other purposes. Cellular RNAs are associated with proteins, often in large ribonucleoprotein (RNP) complexes. This review focuses on recent progress suggesting a role for DExH/D box proteins as 'RNPases' that use chemical energy to remodel the interactions of RNA and proteins.

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