Document Detail


Genomic gems: SINE RNAs regulate mRNA production.
MedLine Citation:
PMID:  20176473     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Mammalian short interspersed elements (SINEs) are abundant retrotransposons that have long been considered junk DNA; however, RNAs transcribed from mouse B2 and human Alu SINEs have recently been found to control mRNA production at multiple levels. Upon cell stress B2 and Alu RNAs bind RNA polymerase II (Pol II) and repress transcription of some protein-encoding genes. Bi-directional transcription of a B2 SINE establishes a boundary that places the growth hormone locus in a permissive chromatin state during mouse development. Alu RNAs embedded in Pol II transcripts can promote evolution and proteome diversity through exonization via alternative splicing. Given the diverse means by which SINE encoded RNAs impact production of mRNAs, this genomic junk is proving to contain hidden gems.
Authors:
Steven L Ponicsan; Jennifer F Kugel; James A Goodrich
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review     Date:  2010-02-20
Journal Detail:
Title:  Current opinion in genetics & development     Volume:  20     ISSN:  1879-0380     ISO Abbreviation:  Curr. Opin. Genet. Dev.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-26     Completed Date:  2010-08-10     Revised Date:  2011-07-27    
Medline Journal Info:
Nlm Unique ID:  9111375     Medline TA:  Curr Opin Genet Dev     Country:  England    
Other Details:
Languages:  eng     Pagination:  149-55     Citation Subset:  IM    
Copyright Information:
2010 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Chemistry and Biochemistry, University of Colorado, Boulder, 80309-0215, USA.
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MeSH Terms
Descriptor/Qualifier:
Alu Elements / genetics
Animals
Gene Expression Regulation*
Humans
Models, Genetic
RNA / genetics*
RNA, Messenger / genetics*,  metabolism
Short Interspersed Nucleotide Elements / genetics*
Transcription, Genetic
Grant Support
ID/Acronym/Agency:
R01 GM068414/GM/NIGMS NIH HHS; R01 GM068414-07/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/RNA, Messenger; 63231-63-0/RNA
Comments/Corrections

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