Molecular cloning, developmental expression, promoter analysis and functional characterization of the mouse CNBP gene

Ken Shimizu, Wei Chen, Amir M. Ashique, Ryoji Moroi, Yi Ping Li

研究成果: ジャーナルへの寄稿記事

35 引用 (Scopus)

抄録

Striking conservation in various organisms suggests that cellular nucleic acid-binding protein (CNBP) plays a fundamental biological role across different species. However, the regulated expression and physiological properties of the CNBP gene are unknown. In this study, we report the molecular cloning, promoter characterization, developmental expression and functional analysis of the mouse CNBP gene. The gene contains five exons and is localized to chromosome 6 in the region corresponding to band 6 D1-D2. Primer extension assay indicates that the transcription start site is located 230 bp upstream of the initiator Met codon. Our promoter analysis indicates that strong transcription enhancer and silencer regions lie within the 1.6 kb proximal region of the promoter and the upstream -3.0 to -1.6 kb region, respectively. The promoter activity is 10 fold higher in embryonic carcinoma cells than that in fibroblast, as determined by CAT assay. Consistent with its function as a transcription factor, CNBP protein is located in the nucleus of cells. During mouse embryogenesis, CNBP is expressed in the anterior region of the early embryo and in the limb, tail and craniofacial region. Overexpression of CNBP strongly stimulates cell proliferation and increases c-myc promoter activity. Our finds suggest that CNBP may play an important role in cell proliferation and tissue patterning during anterior-posterior axis, craniofacial and limb development by targeting c-Myc.

元の言語英語
ページ(範囲)51-62
ページ数12
ジャーナルGene
307
発行部数1-2
DOI
出版物ステータス出版済み - 3 27 2003
外部発表Yes

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Molecular Cloning
Nucleic Acids
Carrier Proteins
Genes
Extremities
Cell Proliferation
Chromosomes, Human, Pair 6
Initiator Codon
Transcription Initiation Site
Cell Nucleus
Genetic Promoter Regions
Embryonic Development
Tail
Exons
Transcription Factors
Embryonic Structures
Fibroblasts
Carcinoma
Proteins

All Science Journal Classification (ASJC) codes

  • Genetics

これを引用

Molecular cloning, developmental expression, promoter analysis and functional characterization of the mouse CNBP gene. / Shimizu, Ken; Chen, Wei; Ashique, Amir M.; Moroi, Ryoji; Li, Yi Ping.

:: Gene, 巻 307, 番号 1-2, 27.03.2003, p. 51-62.

研究成果: ジャーナルへの寄稿記事

Shimizu, Ken ; Chen, Wei ; Ashique, Amir M. ; Moroi, Ryoji ; Li, Yi Ping. / Molecular cloning, developmental expression, promoter analysis and functional characterization of the mouse CNBP gene. :: Gene. 2003 ; 巻 307, 番号 1-2. pp. 51-62.
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