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Exon junction complex enhances translation of spliced mRNAs at multiple steps
- Authors
- Lee, Hyung Chul; Choe, Junho; Chi, Sung-Gil; Kim, Yoon Ki
- Issue Date
- 3-Jul-2009
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- elF4AIII; Y14; Exon junction complex; Nonsense-mediated mRNA decay; Splicing; Internal ribosome entry site
- Citation
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, v.384, no.3, pp.334 - 340
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
- Volume
- 384
- Number
- 3
- Start Page
- 334
- End Page
- 340
- ISSN
- 0006-291X
- Abstract
- Translation of spliced mRNAs is enhanced by exon junction complex (EJC), which is deposited on mRNAs as a result of splicing. Although this phenomenon itself is well known, the underlying molecular mechanism remains Poorly understood. Here we show, using siRNAs against Y14 and eIF4AIII and spliced or intronless Constructs that contain different types of internal ribosome entry sites (IRESes), that Y14 and eIF4AIII increase translation of spliced mRNAs before and after formation of the 80S ribosome complex, respectively. These results suggest that EJC modulates translation of spliced mRNA at multiple steps. (C) 2009 Elsevier Inc. All rights reserved.
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Related Researcher
- Chi, Sung Gil
- Department of Life Sciences