Genetic Selection of Mammalian Adenylyl Cyclases Insensitive to Stimulation by Gsα *
Genetic Selection of Mammalian Adenylyl Cyclases Insensitive to Stimulation by Gsα *
复制标题
对 Gsα 刺激不敏感的哺乳动物腺苷酸环化酶的遗传选择 *
DOI:
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发表时间:
1998
影响因子:
4.8
通讯作者:
R. Taussig
中科院分区:
文献类型:
--
作者:
G. Zimmermann;Dongmei Zhou;R. Taussig
We describe the development of a genetic system allowing for the isolation of mutant mammalian adenylyl cyclases defective in their responses to G protein subunits, thus allowing for the identification of structural elements within the cyclase that are responsible for the recognition of these regulators. Expression of mammalian type V adenylyl cyclase in a cyclase-deleted yeast strain can conditionally complement the lethal phenotype of this strain. Type V adenylyl cyclase-expressing yeast grow only when the cyclase is activated by coexpression of Gsα or addition of forskolin to the medium; however, growth arrest is observed in the presence of both activators or under basal conditions. Utilizing this genetic system, we have isolated 25 adenylyl cyclase mutants defective in their response to Gsα. Sequence analysis and biochemical characterization of these mutants have identified residues in both cytoplasmic domains of the cyclase that are involved in the specific binding of and regulation by Gsα.
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影响因子:
56.9
作者:
Wei-Jen Tang;A. Gilman
通讯作者:
Wei-Jen Tang;A. Gilman
DOI:
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发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Tang,WJ;Krupinski,J;Gilman,AG
通讯作者:
Gilman,AG
DOI:
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发表时间:
1996
期刊:
Molecular pharmacology.
影响因子:
--
作者:
Yoshimura,M;Ikeda,H;Tabakoff,B
通讯作者:
Tabakoff,B
DOI:
--
发表时间:
1993-11
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Z. Wu;S. Wong;D. Storms
通讯作者:
Z. Wu;S. Wong;D. Storms
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Chen,J;Iyengar,R
通讯作者:
Iyengar,R