Complete genomic organization and promoter analysis of the round-spotted pufferfish JAK1, JAK2, JAK3, and TYK2 genes

Jiann Horng Leu, Shian Jang Yan, Tzuu Fen Lee, Chih Ming Chou, Shui Tsung Chen, Pung Pung Hwang, Chen Kung Chou, Chang Jen Huang

研究成果: 雜誌貢獻文章

41 引文 (Scopus)

摘要

We have previously reported the isolation of the JAK1 gene from the round-spotted pufferfish. In the present study, we cloned and characterized genomic sequences encoding pufferfish JAK2, JAK3, and TYK2, which are other members of JAK family. To our knowledge, this is the first report to demonstrate the existence of four JAK genes in fish. All pufferfish JAK genes except JAK1 are composed of 24 exons; JAK1 has an additional exon. A comparison of the exon-intron organization of these genes revealed that the splice sites of JAK genes are nearly identical. In addition, all pufferfish JAK genes have one intron in the 5' untranslated region. Taken together, these data suggest that the pufferfish JAK genes may have evolved from a common ancestor. By 5' rapid amplification of cDNA ends and sequence analysis, we deduced the promoter regions for all JAK genes and found they do not contain typical TATA or CCAAT boxes but rather numerous other potential binding sites for transcription factors. Interestingly, the TYK2 gene is linked to CDC37 in a head-to-tail manner with a small intergenic region of 292 bp. Within this region, there are two potential binding sites for transcriptional factors such as c-Myb and NF-IL6. The putative promoter regions of all JAK genes were tested either in a carp CF cell line or in zebrafish embryos using CAT or lacZ as reporter genes. Both assays confirmed the transcriptional activities of these promoters in vitro and in vivo.
原文英語
頁(從 - 到)431-446
頁數16
期刊DNA and Cell Biology
19
發行號7
DOIs
出版狀態已發佈 - 2000
對外發佈Yes

指紋

Tetraodontiformes
Genes
Exons
Genetic Promoter Regions
Introns
Binding Sites
CCAAT-Enhancer-Binding Protein-beta
Intergenic DNA
Carps
5' Untranslated Regions
Zebrafish
Reporter Genes
Sequence Analysis
Fishes
Transcription Factors
Embryonic Structures
Complementary DNA

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Cell Biology

引用此文

Complete genomic organization and promoter analysis of the round-spotted pufferfish JAK1, JAK2, JAK3, and TYK2 genes. / Leu, Jiann Horng; Yan, Shian Jang; Lee, Tzuu Fen; Chou, Chih Ming; Chen, Shui Tsung; Hwang, Pung Pung; Chou, Chen Kung; Huang, Chang Jen.

於: DNA and Cell Biology, 卷 19, 編號 7, 2000, p. 431-446.

研究成果: 雜誌貢獻文章

Leu, Jiann Horng ; Yan, Shian Jang ; Lee, Tzuu Fen ; Chou, Chih Ming ; Chen, Shui Tsung ; Hwang, Pung Pung ; Chou, Chen Kung ; Huang, Chang Jen. / Complete genomic organization and promoter analysis of the round-spotted pufferfish JAK1, JAK2, JAK3, and TYK2 genes. 於: DNA and Cell Biology. 2000 ; 卷 19, 編號 7. 頁 431-446.
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abstract = "We have previously reported the isolation of the JAK1 gene from the round-spotted pufferfish. In the present study, we cloned and characterized genomic sequences encoding pufferfish JAK2, JAK3, and TYK2, which are other members of JAK family. To our knowledge, this is the first report to demonstrate the existence of four JAK genes in fish. All pufferfish JAK genes except JAK1 are composed of 24 exons; JAK1 has an additional exon. A comparison of the exon-intron organization of these genes revealed that the splice sites of JAK genes are nearly identical. In addition, all pufferfish JAK genes have one intron in the 5' untranslated region. Taken together, these data suggest that the pufferfish JAK genes may have evolved from a common ancestor. By 5' rapid amplification of cDNA ends and sequence analysis, we deduced the promoter regions for all JAK genes and found they do not contain typical TATA or CCAAT boxes but rather numerous other potential binding sites for transcription factors. Interestingly, the TYK2 gene is linked to CDC37 in a head-to-tail manner with a small intergenic region of 292 bp. Within this region, there are two potential binding sites for transcriptional factors such as c-Myb and NF-IL6. The putative promoter regions of all JAK genes were tested either in a carp CF cell line or in zebrafish embryos using CAT or lacZ as reporter genes. Both assays confirmed the transcriptional activities of these promoters in vitro and in vivo.",
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AU - Lee, Tzuu Fen

AU - Chou, Chih Ming

AU - Chen, Shui Tsung

AU - Hwang, Pung Pung

AU - Chou, Chen Kung

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