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Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses
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mRNA export: travelling with DEAD box proteins

P Linder1, F Stutz

  • 1Département de Biochimie médicale, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Genève 4, Switzerland. Patrick.Linder@medecine.unige.ch

Current Biology : CB
|December 1, 2001
PubMed

Insights

The RNA helicase UAP56 and its yeast counterpart Sub2p are crucial for both pre-mRNA splicing and the transport of messenger RNA (mRNA) from the nucleus. This function is essential even for genes lacking introns.

Area of Science:

  • Molecular Biology
  • Gene Expression
  • RNA Processing

Background:

  • The protein UAP56 and its yeast homologue Sub2p are known regulators of pre-messenger RNA (pre-mRNA) splicing.
  • The precise roles of these RNA helicases in other nuclear processes remain under investigation.

Purpose of the Study:

  • To investigate the function of UAP56/Sub2p beyond pre-mRNA splicing.
  • To determine the involvement of UAP56/Sub2p in messenger RNA (mRNA) nuclear export.

Main Methods:

  • Utilizing molecular biology techniques to study RNA helicase function.
  • Analyzing gene expression and mRNA export pathways in cellular models.

Main Results:

  • UAP56/Sub2p are demonstrated to be essential for mRNA export from the nucleus.
  • This requirement for UAP56/Sub2p in mRNA export persists even for intron-less genes.

Conclusions:

  • UAP56/Sub2p play a dual role in RNA processing, impacting both splicing and nuclear export.
  • These findings highlight a conserved mechanism for mRNA export regulation by RNA helicases.

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