Mouse models to study GCAP functions in intact photoreceptors.
Mouse models to study GCAP functions in intact photoreceptors.
复制标题
研究完整光感受器 GCAP 功能的小鼠模型。
DOI:
10.1007/978-1-4615-0121-3_22
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发表时间:
2002
影响因子:
--
通讯作者:
Chen,Jeannie
中科院分区:
文献类型:
--
作者:
Mendez,Ana;Chen,Jeannie
In photoreceptor cells cGMP is the second messenger that transduces light into an electrical response. Regulation of cGMP synthesis by Ca2+is one of the key mechanisms by which Caz+exerts negative feedback to the phototransduction cascade in the process of light adaptation.This Ca2+feedback to retinal guanylyl cyclases (Ret-GCs) is conferred by the guanylate cyclase-activating proteins (GCAPs). Mutations in GCAP1 that disrupt the Ca2+regulation of Ret-GCs in vitro have been associated with severe human vision disorders. This chapter focuses on recent data obtained from biochemical and electrophysiological studies of GCAP I /GCAP2 knockout mice and other GCAP transgenic mice, addressing:1. the quantitative aspects of the Ca2+-feedback to Ret-GCs in regulating the light sensitivity and adaptation in intact rods;2. functional differences between GCAPI and GCAP2 in intact rod photore-ceptors; and3. whether GCAP mutants with impaired Ca2+ binding lead to retinal disease in vivo by constitutive activation ofRet-GCs and elevation of intracellular cOMP, as predicted from in vitro studies.
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DOI:
10.1006/geno.1996.4513
发表时间:
1997
期刊:
Genomics.
影响因子:
--
作者:
Surguchov,A;Bronson,JD;Banerjee,P;Knowles,JA;Ruiz,C;Subbaraya,I;Palczewski,K;Baehr,W
通讯作者:
Baehr,W
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1085/jgp.94.4.649
发表时间:
1989-10
期刊:
The Journal of general physiology
影响因子:
--
作者:
Kawamura S;Murakami M
通讯作者:
Murakami M
影响因子:
4.8
作者:
Karl
通讯作者:
Karl
影响因子:
4.8
作者:
CALVERT, PD;KLENCHIN, VA;BOWNDS, MD
通讯作者:
BOWNDS, MD