Antisense Activities of Ribozymes in in vivo
Antisense Activities of Ribozymes in in vivo
批准号:
03404061
负责人:
OHTSUKA Eiko
金额:
$14.78万
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (A)
财政年份:
1991
资助国家:
日本
项目状态:
已结题
起止时间:
1991 至 1992
中文摘要
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英文摘要
We have designed hammerhead ribozymes that cleaved the c-Ha-ras mRNA activated at codon 12 (GGU*GUU).Plasmids containing the ribozyme genes were expressed under the control of long terminal repeats of Rous sarcoma virus in NIH3T3 cells transfected with the activated c-Ha-ras gene. These ribozymes were found to inhibit the foci formation (about 50%) by cleavage activities with the ribozyme rather than hybridization to the c-Ha-ras gene product. Further, when the activated c-Ha-ras gene was cotransfected with the ribozyme gene, expression of the activated gene was suppressed by ribozymes in morphologically flat cells.
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K.Kido: "Sequence-Dependent Cleavage of DNA by Alkylation with Antisense Oligodeoxyribonucleotides Containing a 2-(N-Iodoacetylaminoethyl)Thio-Adenine." Nucleic Acids Res.20. 1339-1344 (1992)
K.Kido:“通过使用含有 2-(N-碘乙酰氨基乙基)硫代腺嘌呤的反义寡脱氧核糖核苷酸进行烷基化,实现 DNA 的序列依赖性切割。”
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通讯作者:
K.Kido: "Sequence-Dependent Cleavage of DNA by Alkylation with Antisense Oligodeoxyribonucleotides Containing a 2-(N-Iodoacetylaminoethyl)Thio-Aenine." Nucleic Acids Res.20. 1339-1344 (1992)
K.Kido:“通过用含有 2-(N-碘乙酰氨基乙基)硫代-Aenine 的反义寡脱氧核糖核苷酸进行烷基化,实现 DNA 的序列依赖性切割。”
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Hiroyuki Kamiya: "Transformation Activity of a Synthetic cーHaーras Gene Containing O^6ーMethylguanine in Codon 12" Jpn.J.Cancer Res.82. 997-1002 (1991)
Hiroyuki Kamiya:“密码子 12 中含有 O^6ー甲基鸟嘌呤的合成 cHaras 基因的转化活性”Jpn.J.Cancer Res.82 (1991)。
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M.Koizumi: "Effects of Phosphorothioate and 2-Amino Groups in Hammerhead Ribozymes on Cleavage Rates and Mg^<2+>Binding." Biochemistry. 30. 5145-5150 (1991)
M.Koizumi:“锤头核酶中硫代磷酸酯和 2-氨基对裂解率和 Mg^<2> 结合的影响。”
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M.Koezumi: "Effects of Plosphorothioate and 2-Amino Groups in Hammerhead Ribozymes on Cleavage Rates and Mg^<2+>Binding." Biochemistry. 30. 5145-5150 (1991)
M.Koezumi:“锤头核酶中硫代磷酸酯和 2-氨基对裂解率和 Mg^<2> 结合的影响。”
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共 9 条
Elucidation of recognition mechanisms of antibodies specific for nucleic aicd derivatives
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Development of site-specific RNA cleaving method using modified DNA splints-RNase H system
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Development of cancer diagnosis using monoclonal antibodies specific for ras gene products
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财政年份:1985
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依托单位:
Stereospecific synthesis of phosphotriesters by using new condensing reagents
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财政年份:1984
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负责人:OHTSUKA Eiko
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依托单位:
海外基金