Allele-specific suppression by formation of new protein-protein interactions in yeast.
Allele-specific suppression by formation of new protein-protein interactions in yeast.
复制标题
通过在酵母中形成新的蛋白质-蛋白质相互作用来进行等位基因特异性抑制。
DOI:
10.1093/genetics/147.4.1635
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发表时间:
1997
期刊:
影响因子:
3.3
通讯作者:
Adams,AE
中科院分区:
文献类型:
--
作者:
Sandrock,TM;O'Dell,JL;Adams,AE
Yeast fimbrin is encoded by theSAC6gene, mutations of which suppress temperature-sensitive mutations in the actin gene (ACT1). To examine the mechanism of suppression, we have conducted a biochemical analysis of the interaction between various combinations of wild-type and mutant actin and Sac6 proteins. Previously, we showed that actin mutations that are suppressed bysac6mutations encode proteins with a reduced affinity for wild-type Sac6p. In the present study, we have found that mutant Sac6 proteins bind more tightly to mutant actin than does wild-type SacGp, and thus compensate for weakened interactions caused by the mutant actin. Remarkably, we have also found that mutant Sac6 proteins bind more tightly to wild-type actin than does wild-type Sac6p. This result indicates that suppression does not occur through the restoration of the original contact site, but rather through the formation of a novel contact site. This finding argues against suppression occurring through a “lock-and-key” mechanism and suggests a mechanism involving more global increases in affinity between the two proteins. We propose that the most common kind of suppressors involving interacting proteins will likely occur through this less specific mechanism.
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影响因子:
3.3
作者:
Adams,AE;Botstein,D
通讯作者:
Botstein,D
影响因子:
5.5
作者:
M. Shibata;Y. Yamakawa;T. Ohoka;S. Mizuno;Kazuo Suzuki
通讯作者:
Kazuo Suzuki
影响因子:
3.4
作者:
WACHSSTOCK, DH;SCHWARZ, WH;POLLARD, TD
通讯作者:
POLLARD, TD
影响因子:
3.3
作者:
S. Brower;J. Honts;A. Adams
通讯作者:
S. Brower;J. Honts;A. Adams
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
T. Sandrock
通讯作者:
T. Sandrock