Frameshift suppression in Saccharomyces cerevisiae. III. Isolation and genetic properties of group III suppressors.

Frameshift suppression in Saccharomyces cerevisiae. III. Isolation and genetic properties of group III suppressors.
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酿酒酵母中的移码抑制。

DOI:
10.1093/genetics/95.4.855
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发表时间:
1980
期刊:
影响因子:
3.3
通讯作者:
Fink,GR
Fink,GR
中科院分区:
生物学2区
文献类型:
--
作者:
Cummins,CM;Gaber,RF;Culbertson,MR;Mann,R;Fink,GR

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已在酿酒酵母中鉴定出表现出与细菌移码抑制子相似行为的 ICR 诱导突变抑制子。酵母抑制子已分为两组。先前的证据表明一组抑制因子(第二组:SUFI、SUF3、SUF4、SUF5 和SUF6)代表甘氨酰-tRNA 结构基因的突变。另一组(第三组:SUF2 和SUF7)的抑制子的特征不太清楚。尽管它们抑制了一些 ICR 可恢复突变,但未能抑制 II 组移码突变。本通讯提供了第 III 组抑制子的更全面的特征,并描述了该组中四个新抑制子(SUF1、SUF9、SUF10 和 suf11)的分离和特性。—在我们最初的研究中,第 III 组抑制子被分离为第 III 组突变的回复突变体 this4-712 和 his4-713。作为 ICR 诱导的这些突变的回复突变体获得的所有抑制子均位于染色体着丝粒附近的 SUF2 位点三.本研究通过分析III组突变的自发和紫外线诱导的回复体获得了其他位点的抑制子图谱。SUF2和SUF10抑制两个III组his4突变,而SUF7、SUF8、SUF9和suf11抑制his4-713,但不抑制this4-712。除suf11外,所有抑制子在his4-713纯合的二倍体中均占优势。抑制因子无法抑制代表性的 UAA、UAG 和 UGA 无义突变。SUP9 与 VI 号染色体的着丝粒相连,SUF10 与 XIV 号染色体的着丝粒相连。使用三倍体作图程序来确定SUF7和SUF8的染色体位置。随后的标准杂交揭示了XIII染色体上的SUF7与cdc5的连锁以及VIII染色体上的SUF8与cdcl2和pet3的连锁。
Suppressors of ICR-induced mutations that exhibit behavior similar to bacterial frameshift suppressors have been identified in the yeastSaccharomyces cerevisiae.The yeast suppressors have been divided into two groups. Previous evidence indicated that suppressors of one group (Group II:SUFI, SUF3, SUF4, SUF5andSUF6) represent mutations in the structural genes for glycyl-tRNA's. Suppressors of the other group (Group III:SUF2andSUF7) were less well characterized. Although they suppressed some ICR-revertible mutations, they failed to suppress Group II frameshift mutations. This communication provides a more thorough characterization of the Group III suppressors and describes the isolation and properties of four new suppressors in that group (SUF1, SUF9, SUF10andsuf11).—In our original study, Group III suppressors were isolated as revertants of the Group III mutationshis4-712andhis4-713.All suppressors obtained as ICR-induced revertants of these mutations mapped at theSUF2locus near the centromere of chromosome III. Suppressors mapping at other loci were obtained in this study by analyzing spontaneous and UV-induced revertants of the Group III mutations.SUF2andSUF10suppress both Group IIIhis4mutations, whereasSUF7, SUF8, SUF9andsuf11suppresshis4-713,but nothis4-712.All of the suppressors exceptsuf11are dominant in diploids homozygous forhis4-713.The suppressors fail to suppress representative UAA, UAG and UGA nonsense mutations.—SUP9is linked to the centromere of chromosomeVI, andSUF10is linked to the centromere of chromosomeXIV. A triploid mapping procedure was used to determine the chromosome locations ofSUF7andSUF8.Subsequent standard crosses revealed linkage ofSUF7tocdc5on chromosomeXIIIand linkage ofSUF8tocdcl2andpet3on chromosomeVIII.
鼠伤寒沙门氏菌移码突变的抑制剂。
DOI: --
发表时间: 1970
影响因子: 5.6
作者:
D. L. Riddle;J. R. Roth
通讯作者: J. R. Roth
鼠伤寒沙门氏菌交叉抑制移码的相似性。
DOI: 10.1016/0022-2836(71)90141-0
发表时间: 1971
影响因子: 5.6
作者:
J. Yourno
通讯作者: J. Yourno
吖啶芥末 (ICR-170) 和脉孢菌中结构相关化合物的致突变性。
DOI: 10.1016/0027-5107(67)90021-8
发表时间: 1967
期刊: Mutation research
影响因子: --
作者:
H. Malling
通讯作者: H. Malling
由酵母中的赭石抑制剂引起的丝氨酸取代。
DOI: 10.1016/0022-2836(75)90324-1
发表时间: 1975
影响因子: 5.6
作者:
S. Liebman;J. Stewart;F. Sherman
通讯作者: F. Sherman
DOI: 10.1093/genetics/95.4.833
发表时间: 1980
期刊: Genetics
影响因子: 3.3
作者:
Culbertson,MR;Underbrink,KM;Fink,GR
通讯作者: Fink,GR