Synthetic lethal mutations suggest interactions between U5 small nuclear RNA and four proteins required for the second step of splicing
Synthetic lethal mutations suggest interactions between U5 small nuclear RNA and four proteins required for the second step of splicing
复制标题
合成致死突变表明 U5 小核 RNA 和第二步剪接所需的四种蛋白质之间存在相互作用
DOI:
10.1128/mcb.12.11.5197-5205.1992
复制
发表时间:
1992
影响因子:
5.3
通讯作者:
C. Guthrie
中科院分区:
文献类型:
--
作者:
D. Frank;B. Patterson;C. Guthrie
To investigate the function of the U5 small nuclear ribonucleoprotein (snRNP) in pre-mRNA splicing, we have screened for factors that genetically interact with Saccharomyces cerevisiae U5 snRNA. We isolated trans-acting mutations that exacerbate the phenotypes of conditional alleles of the U5 snRNA and named these genes SLU, for synergistically lethal with U5 snRNA. SLU1 and SLU2 are essential for the first catalytic step of splicing, while SLU7 and SLU4 (an allele of PRP17 [U. Vijayraghavan, M. Company, and J. Abelson, Genes Dev. 3:1206-1216, 1989]) are required only for the second step of splicing. Furthermore, slu4-1 and slu7-1 are lethal in combination with mutations in PRP16 and PRP18, which also function in the second step, but not with mutations in factors required for the first catalytic step, such as PRP8 and PRP4. We infer from these data that SLU4, SLU7, PRP18, PRP16, and the U5 snRNA interact functionally and that a major role of the U5 snRNP is to coordinate a set of factors that are required for the completion of the second catalytic step of splicing.
登录
查看更多内容
影响因子:
11.1
作者:
T. Huffaker;M. Hoyt;D. Botstein
通讯作者:
T. Huffaker;M. Hoyt;D. Botstein
DOI:
10.1016/0168-9525(91)90276-v
发表时间:
1991
期刊:
Trends in genetics : TIG
影响因子:
--
作者:
Ruby,SW;Abelson,J
通讯作者:
Abelson,J
影响因子:
10.5
作者:
CHENG, SC;ABELSON, J
通讯作者:
ABELSON, J
影响因子:
3.3
作者:
Adams,AE;Botstein,D
通讯作者:
Botstein,D
影响因子:
3.3
作者:
P. Novick;B. Osmond;D. Botstein
通讯作者:
P. Novick;B. Osmond;D. Botstein