Inhibition of retinal guanylyl cyclase by the RGS9-1 N-terminus.
Inhibition of retinal guanylyl cyclase by the RGS9-1 N-terminus.
复制标题
RGS9-1 N 末端抑制视网膜鸟苷酸环化酶。
DOI:
10.1006/bbrc.2001.5346
复制
发表时间:
2001
期刊:
影响因子:
--
通讯作者:
Yamazaki,A
中科院分区:
文献类型:
--
作者:
Yu,H;Bondarenko,VA;Yamazaki,A
Cyclic GMP plays a key role in retinal phototransduction and its photoreceptor concentration is precisely controlled by the cooperative action of cGMP phosphodiesterase (PDE) and retinal guanylyl cyclase (retGC). However, studies of the relationship between these two systems have focused only on a Ca2+-mediated, indirect connection. Using a retinal “regulator of G-protein signaling” (RGS9-1) and its fragments, we show that the N-terminus of RGS9-1 inhibits retGC activity. We also indicate that the GGL domain and/or the RGS domain function as an internal suppressor against the N-terminus, suggesting that proteins bound to these domains regulate the inhibitory activity of the N-terminus. Direct interaction of retGC with RGS9-1 and its N-terminus is also proved by immunoprecipitation and an overlay technique. Since RGS9-1 also controls the lifetime of transducin-activated PDE through regulating GTPase activity of transducin, this study strongly suggests that RGS9-1 mediates the direct interaction between PDE and retGC systems, and that this ingenious mechanism plays an important role in tuning of cGMP concentration in photoreceptors.
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DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Yamazaki,A;Hayashi,F;Tatsumi,M;Bitensky,MW;George,JS
通讯作者:
George,JS
影响因子:
15.9
作者:
Y. Koutalos;K. Yau
通讯作者:
K. Yau
DOI:
--
发表时间:
1998
期刊:
Molecular pharmacology.
影响因子:
--
作者:
Granneman,JG;Zhai,Y;Zhu,Z;Bannon,MJ;Burchett,SA;Schmidt,CJ;Andrade,R;Cooper,J
通讯作者:
Cooper,J
影响因子:
64.8
作者:
KAWAMURA, S;MURAKAMI, M
通讯作者:
MURAKAMI, M
DOI:
10.1016/b978-0-12-185279-5.50022-4
发表时间:
1993
期刊:
Methods in Neurosciences
影响因子:
--
作者:
F. Hayashi;L. Hutson;A. Kishigami;S. Nagao;A. Yamazaki
通讯作者:
A. Yamazaki