The identification of an endonuclease that cleaves within an HuR binding site in mRNA Journal Article


Authors: Zhao, Z.; Chang, F. C.; Furneaux, H. M.
Article Title: The identification of an endonuclease that cleaves within an HuR binding site in mRNA
Abstract: Messenger RNAs (mRNAs) that contain U-rich elements are targeted for rapid decay. Selective inhibition of this decay results in a rapid increase in steady state level. Thus, this is an important regulatory step in gene expression. Previously, we have found that these mRNAs are selectively stabilized by a specific mRNA binding protein called HuR. mechanism of action of HuR is not well understood. It has been postulated that HuR stabilizes mRNA by the displacement or inhibition of factors that specifically cleave or deadenylate these mRNAs. In this paper, we report the identification and characterization of a novel endonuclease that cleaves within an HuR binding site in p27kip1 mRNA. The specificity of this endonuclease and its inhibition by HuR argue for it playing a role in the postranscriptional regulation of gene expression.
Keywords: controlled study; human cell; enzyme inhibition; steady state; hela cells; rna binding protein; gene expression regulation; rna-binding proteins; transcription regulation; messenger rna; enzyme analysis; rna, messenger; eukaryota; substrate specificity; genetic stability; base sequence; binding site; binding sites; endonuclease; enzyme specificity; rna cleavage; antigens, surface; uracil; endonucleases; decomposition; humans; human; priority journal; article
Journal Title: Nucleic Acids Research
Volume: 28
Issue: 14
ISSN: 0305-1048
Publisher: Oxford University Press  
Date Published: 2000-07-15
Start Page: 2695
End Page: 2701
Language: English
PUBMED: 10908325
PROVIDER: scopus
PMCID: PMC102663
DOI: 10.1093/nar/28.14.2695
DOI/URL:
Notes: Export Date: 18 November 2015 -- Source: Scopus
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  1. Feng-Ching Chang
    2 Chang
  2. Zhiquan Zhao
    11 Zhao