Frameshift suppression in Saccharomyces cerevisiae. IV. New suppressors among spontaneous co-revertants of the Group II his4-206 and leu 2-3 frameshift mutations.

Frameshift suppression in Saccharomyces cerevisiae. IV. New suppressors among spontaneous co-revertants of the Group II his4-206 and leu 2-3 frameshift mutations.
复制标题

酿酒酵母中的移码抑制。

DOI:
10.1093/genetics/101.3-4.345
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发表时间:
1982
期刊:
影响因子:
3.3
通讯作者:
Culbertson,MR
Culbertson,MR
中科院分区:
生物学2区
文献类型:
--
作者:
Gaber,RF;Culbertson,MR

文献摘要

参考文献

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相似文献

酿酒酵母中 ICR 诱导的移码突变已根据其回复和抑制特性分为几组。一组外部可抑制的his4突变(指定为第二组)已显示在甘氨酸密码子中包含+1 G:C插入,并被先前描述的五种抑制突变(SUFI、SUF3、SUF4、SUF5和SUP6)中的任何一种抑制。据信抑制基因编码含有四个碱基反密码子的甘氨酸 tRNA。 ----对II组移码突变this4-206和leu2-3的自发共回复体的分析揭示了11个新的II组特异性抑制基因(SUF15至SlJF25)的存在。新抑制基因座在酵母遗传图谱上的位置已经确定。 ----通过比较在 16 个不同位点映射的 II 组特异性抑制子抑制不同 IIhis4 突变的能力或无能力,定义了抑制子的两个亚类。一个亚类抑制his4-38和his4-519,它们分别含有改变的四碱基mRNA密码子5'-GGGU-3'和5'-GGGG-3'。另一个亚类抑制his4-38,但不能抑制his4-519。讨论了tRNA介导的移码抑制的机制以及将抑制子分为两个亚类的分子基础。
ICR-induced frameshift mutations at thehis4locus inSaccharomyces cerevisiaehave been classified into several groups on the basis of their reversion and suppression properties. One group of externally suppressiblehis4mutations, designated Group II, have been shown to contain +1 G:C insertions in glycine codons and are suppressed by any one of five suppressor mutations described previously (SUFI, SUF3, SUF4, SUF5,andSUP6). The suppressor genes are believed to encode glycine tRNAs containing four base anticodons. —-An analysis of spontaneous co-revertants of the Group II frameshift mutationshis4-206andleu2-3has revealed the existence of eleven new Group II-specific suppressor genes (SUF15throughSlJF25). The locations of the new suppressor loci on the yeast genetic map have been determined. —-By comparing the ability or inability of Group II-specific suppressors mapping at 16 different loci to suppress different Group IIhis4mutations, two subclasses of suppressors have been defined. One subclass suppresseshis4-38andhis4-519,which contain the altered four base mRNA codons 5'-GGGU-3' and 5'-GGGG-3', respectively. The other subclass suppresseshis4-38,but fails to suppresshis4-519.The mechanism of tRNAmediated frameshift suppression and the molecular basis for this division of the suppressors into two subclasses is discussed.
DOI: 10.1016/0378-1119(81)90159-1
发表时间: 1981
期刊: Gene
影响因子: 3.5
作者:
Claudia Cummins;M. Culbertson
通讯作者: M. Culbertson
DOI: 10.1016/0092-8674(81)90067-2
发表时间: 1981-01-01
期刊: CELL
影响因子: 64.5
作者:
BOSSI, L;ROTH, JR
通讯作者: ROTH, JR
酿酒酵母的肌醇需求突变体。
DOI: 10.1093/genetics/80.1.23
发表时间: 1975
期刊: Genetics
影响因子: 3.3
作者:
M. Culbertson;S. Henry
通讯作者: S. Henry
DOI: 10.1073/pnas.79.11.3565
发表时间: 1982-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
CUMMINS, CM;DONAHUE, TF;CULBERTSON, MR
通讯作者: CULBERTSON, MR
酵母移码抑制基因 SUF16-1 编码含有四碱基反密码子 3-CCCG-5 的改变的甘氨酸 tRNA。
DOI: 10.1016/0378-1119(82)90002-6
发表时间: 1982
期刊: Gene
影响因子: 3.5
作者:
Gaber,RF;Culbertson,MR
通讯作者: Culbertson,MR