Characterization of a mouse ctgf 3'-UTR segment that mediates repressive regulation of gene expression

Seiji Kondo, Satoshi Kubota, Takanori Eguchi, Takako Hattori, Tohru Nakanishi, Toshio Sugahara, Masaharu Takigawa

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We isolated a small segment of the 3'-untranslated region (3'-UTR) in the mouse connective tissue growth factor (ctgf/fisp12) gene and evaluated its functionality. Comparison of the nucleotide sequences of human and mouse ctgf 3'-UTRs revealed a conserved small segment of 91 bases. The corresponding segments of the 3'-UTRs shared as much as 82.4% homology, whereas the overall homology between the 3'-UTRs was 71.8%. To study the functionality of the conserved segment, the corresponding region of mouse ctgf cDNA was amplified from NIH3T3 cells. When it was fused downstream of a marker gene, it showed remarkable repressive effects on gene expression. The repressive effect of the sense form was more prominent than that of the antisense form. Computer analyses of these sequence predicted stable secondary structures, suggesting that they act at the RNA level. The predicted structures of the sense and antisense forms appeared to be slightly different, which is consistent with the difference in repressive function. These findings defined the conserved small element in the mouse ctgf gene as a potent negative regulator of gene expression, which may act at a posttranscriptional level. (C) 2000 Academic Press.

Original languageEnglish
Pages (from-to)119-124
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume278
Issue number1
DOIs
Publication statusPublished - Nov 11 2000

Fingerprint

Gene Expression Regulation
3' Untranslated Regions
Gene expression
Genes
Gene Expression
Regulator Genes
Sequence Analysis
Nucleotides
Complementary DNA
RNA

Keywords

  • 3'-untranslated region
  • 3'-UTR
  • Cis-acting elements
  • Connective tissue growth factor
  • CTGF
  • Gene expression
  • Secondary structure

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Characterization of a mouse ctgf 3'-UTR segment that mediates repressive regulation of gene expression. / Kondo, Seiji; Kubota, Satoshi; Eguchi, Takanori; Hattori, Takako; Nakanishi, Tohru; Sugahara, Toshio; Takigawa, Masaharu.

In: Biochemical and Biophysical Research Communications, Vol. 278, No. 1, 11.11.2000, p. 119-124.

Research output: Contribution to journalArticle

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