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World J Biol Chem. 2012 Jan 26;3(1):7-26. doi: 10.4331/wjbc.v3.i1.7.

Yeast nuclear RNA processing.

Author information

  • 1Jade Bernstein, Eric A Toth, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States.

Abstract

Nuclear RNA processing requires dynamic and intricately regulated machinery composed of multiple enzymes and their cofactors. In this review, we summarize recent experiments using Saccharomyces cerevisiae as a model system that have yielded important insights regarding the conversion of pre-RNAs to functional RNAs, and the elimination of aberrant RNAs and unneeded intermediates from the nuclear RNA pool. Much progress has been made recently in describing the 3D structure of many elements of the nuclear degradation machinery and its cofactors. Similarly, the regulatory mechanisms that govern RNA processing are gradually coming into focus. Such advances invariably generate many new questions, which we highlight in this review.

KEYWORDS:

Cryptic unstable transcript, Exosome, Mtr4p, Polyadenylation, Small nuclear RNA, Small nucleolar RNA, TRAMP, mRNA, rRNA, tRNA

PMID:
22312453
[PubMed]
PMCID:
PMC3272586
Free PMC Article

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