Mutations preventing expression of sup3 tRNASer nonsense suppressors of Schizosaccharomyces pombe
Mutations preventing expression of sup3 tRNASer nonsense suppressors of Schizosaccharomyces pombe
复制标题
突变阻止粟酒裂殖酵母sup3 tRNASer无义抑制子的表达
DOI:
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发表时间:
1985
影响因子:
5.3
通讯作者:
D. Söll
中科院分区:
文献类型:
--
作者:
D. Pearson;I. Willis;H. Hottinger;J. Bell;A. Kumar;U. Leupold;D. Söll
Suppression of nonsense codons in Schizosaccharomyces pombe by sup3-e tRNASerUGA or sup3-i tRNASerUAA is reduced or abolished by mutations within the suppressor locus. Twenty-five suppressor-inactive sup3-e genes and thirteen mutant sup3-i genes were isolated from S. pombe genomic clone banks by colony hybridization. Sequence analysis of these revertant alleles corroborates genetic evidence for mutational hotspots within the sup3 tRNA gene. Fifteen types of point mutations or insertions were found. Many of these replace bases which are highly or completely conserved in eucaryotic tRNA genes. Transcription of the altered sup3 genes in a Saccharomyces cerevisiae extract enabled the identification of mutations which affect the rate of 5'-end maturation or splicing of the tRNA precursors or both. A total of seven mutations were found which alter transcriptional efficiencies. Of these, five are located outside the internal transcription control regions.
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DOI:
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发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Dingermann,T;Sharp,S;Schaack,J;Söll,D
通讯作者:
Söll,D
DOI:
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发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Schaack,J;Sharp,S;Dingermann,T;Söll,D
通讯作者:
Söll,D
影响因子:
3.5
作者:
Roberts,TM;Swanberg,SL;Poteete,A;Riedel,G;Backman,K
通讯作者:
Backman,K
DOI:
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发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Sharp,S;Dingermann,T;Schaack,J;DeFranco,D;Söll,D
通讯作者:
Söll,D
DOI:
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发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Klekamp,MS;Weil,PA
通讯作者:
Weil,PA