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The conserved role of Smu1 in splicing is characterized in its mammalian temperature-sensitive mutant.
https://repo.qst.go.jp/records/44725
https://repo.qst.go.jp/records/4472580f234d9-de21-4470-b3b3-d24257acd580
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2006-11-29 | |||||
タイトル | ||||||
タイトル | The conserved role of Smu1 in splicing is characterized in its mammalian temperature-sensitive mutant. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sugaya, Kimihiko
× Sugaya, Kimihiko× Hongou, Etsuko× Ishihara, Yoshie× Tsuji, Hideo× 菅谷 公彦× 本郷 悦子× 石原 よし江× 辻 秀雄 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Temperature-sensitive CHO-K1 mutant cell line tsTM18 exhibits chromosomal instability and cell-cycle arrest at S and G2 phases with decreased DNA synthesis at the nonpermissive temperature, 39degree-C. We previously identified an amino acid substitution in Smu1 that underlies the temperature-sensitive phenotypes of tsTM18 cells. In the present study, we confirmed that Smu1 is associated with the temperature-sensitive defect of tsTM18 by RNA interference. We also found an early temperature effect in DNA synthesis. Because genetic studies of nematodes revealed that smu-1 is involved in splicing of the unc52/perlecan pre-mRNA, we analysed the perlecan transcript in tsTM18 cells by reverse transcription-polymerase chain reaction (RT-PCR). The perlecan PCR product amplified from RNA of tsTM18 cells cultured at 39degree-C appeared to be a mixture of variants. Sequence analysis identified at least six variants that result from alternative splicing and intron retention. Comparison of the results of perlecan RT-PCR analysis with those of analysis of four other genes suggested that the splicing defect in the perlecan gene is unique and that it is conserved through evolution. | |||||
書誌情報 |
Journal of Cell Science 巻 119, 号 23, p. 4944-4951, 発行日 2006 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0021-9533 |