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マツモト ナオユキ
Matsumoto Naoyuki
松本 直行 所属 鶴見大学 歯学部 歯学科 病理学 職種 教授 |
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| 論文種別 | 【査読あり】 研究論文（学術雑誌） |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | Cloning of the chicken immunoglobulin joining (J)-chain gene and characterization of its promoter region |
| 掲載誌名 | 正式名：DNA and Cell Biology ISSNコード：10445498 |
| 出版社 | Mary Ann Liebert Inc |
| 巻・号・頁 | 21(2),pp.81-90 |
| 著者・共著者 | Tomihisa Takahashi,Itaru Moro,Masayo Kimura,Naoyuki Matsumoto,Arihiro Iwata,Yoshitaka Ogura,Toshiyuki Yoshida,Nobuhiro Kamei,Kazuo Komiyama,Jiri Mestecky |
| 発行年月 | 2002 |
| 概要 | Three overlapping genomic clones of the chicken immunoglobulin joining (J) chain were isolated and then characterized using restriction enzyme analysis, Southern blot analysis with cDNA probes, and DNA sequencing. The gene consisted of four exons separated by a 2.6-kb intron 1, a 0.9-kb intron 2, and a 0.5-kb intron 3. A transcriptional initiation site was identified by a primer extension method using mRNA and cDNA, indicating that exon 1 was 86 bp encoding 20 amino acid residues. A TATA box was positioned at 29,25 bp upstream of exon 1. Exons, 2, and 3 consisted of 133 bp and 81 bp, encoding 43 and 26 amino acid residues of the mature protein, respectively. Exon 4 consisted of 202 bp encoding 66 amino acid residues and 1.2 kb of untranslated sequence. Deletion mutants of a 4.1-kb genomic fragment containing exon 1 showed high levels of promoter activities when examined in luciferase reporter assays following transfection into the DT-40 chicken B-cell line. These results suggest that the chicken J-chain gene consists of four exons and three introns and that the transcriptional regulatory elements may be present within 3.8 kb upstream of exon 1. |
| DOI | 10.1089/104454902753604952 |
| PMID | 11953007 |
| PermalinkURL | http://www.liebertpub.com/doi/pdf/10.1089/104454902753604952 |