Genomic organization and promoter analysis of mouse follistatin-related gene (FLRG)

Masashi Nakatani, Norio Yamakawa, Takashi Matsuzaki, Shunichi Shimasaki, Hiromu Sugino, Kunihiro Tsuchida

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Follistatin (FS) is well characterized as an activin-binding protein. Recently, a novel follistatin-like protein called follistatin-related gene (FLRG) that has a similar domain organization to that of follistatin has been identified. Like follistatins, FLRG binds activins and bone morphogenetic proteins (BMPs). To study the regulation of FLRG expression, we have analyzed the genomic organization and promoter of the mouse FLRG gene. The mouse FLRG gene consists of five exons, and each encodes discrete functional regions. The overall genomic structure of FLRG is similar to that of FS except that the FLRG gene is missing one exon that codes a third FS domain found in FS. The promoter that covers 2.5 kbp and is linked to a luciferase reporter construct is active in human cervical carcinoma HeLa cells as well as in human embryonic kidney (HEK293) cells. Deletion analysis of the promoter regions indicates that a proximal 550 base pairs are enough for basal FLRG promoter activity in the cell lines. FLRG promoter activity is significantly augmented by phorbol 12-myristate 13-acetate (PMA) treatment, but not by cAMP stimulation. By contrast, FS promoter is activatable either by cAMP or PMA. Thus, although FS and FLRG are structurally and functionally related, their modes of regulation by external stimuli are different.

Original languageEnglish
Pages (from-to)117-123
Number of pages7
JournalMolecular and Cellular Endocrinology
Volume189
Issue number1-2
DOIs
Publication statusPublished - 28-03-2002

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Follistatin
Genes
Follistatin-Related Proteins
Exons
Acetates

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Endocrinology

Cite this

Nakatani, Masashi ; Yamakawa, Norio ; Matsuzaki, Takashi ; Shimasaki, Shunichi ; Sugino, Hiromu ; Tsuchida, Kunihiro. / Genomic organization and promoter analysis of mouse follistatin-related gene (FLRG). In: Molecular and Cellular Endocrinology. 2002 ; Vol. 189, No. 1-2. pp. 117-123.
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Genomic organization and promoter analysis of mouse follistatin-related gene (FLRG). / Nakatani, Masashi; Yamakawa, Norio; Matsuzaki, Takashi; Shimasaki, Shunichi; Sugino, Hiromu; Tsuchida, Kunihiro.

In: Molecular and Cellular Endocrinology, Vol. 189, No. 1-2, 28.03.2002, p. 117-123.

Research output: Contribution to journalArticle

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