G protein‐coupled receptors: a count of 1001 conformations
G protein‐coupled receptors: a count of 1001 conformations
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G 蛋白偶联受体:1001 种构象
DOI:
10.1111/j.1472-8206.2005.00319.x
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发表时间:
2005
影响因子:
2.9
通讯作者:
I. Liefde
中科院分区:
文献类型:
--
作者:
Georges Vauquelin;I. Liefde
G protein‐coupled receptors (GPCRs) were initially regarded to adopt an inactive and an active conformation and to activate a single type of G protein. Studies with recombinant cell systems have led to a more complex picture. First, GPCRs can activate distinct G protein species. Second, GPCR multistate models have been invoked to explain their complex behaviour in the presence of agonists, antagonists and other binding partners. The occurrence of intermediate receptor conformational states during GPCR activation and antagonist binding is suggested by fluorescence measurements and studies with constitutively active receptor mutants and insurmountable antagonists. Different agonists may trigger distinct effector pathways through a single receptor by dictating its preference for certain G proteins (i.e. ‘agonist trafficking’). Structural modification and exogenous and endogenous (e.g. other cellular proteins, lipids) allosteric modulators also affect ligand–GPCR interaction and receptor activation. These new developments in GPCR research could lead to the development of more selective therapeutic drugs.
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DOI:
10.1016/s0021-9258(18)53442-6
发表时间:
1993-03
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Samama;S. Cotecchia;T. Costa;R. Lefkowitz
通讯作者:
P. Samama;S. Cotecchia;T. Costa;R. Lefkowitz
影响因子:
3.6
作者:
Berg, KA;Maayani, S;Clarke, WP
通讯作者:
Clarke, WP
影响因子:
56.9
作者:
Luttrell, LM;Ferguson, SSG;Lefkowitz, RJ
通讯作者:
Lefkowitz, RJ
影响因子:
4
作者:
L. Luttrell;R. Lefkowitz
通讯作者:
L. Luttrell;R. Lefkowitz
影响因子:
5.6
作者:
HENDERSON, R;BALDWIN, JM;DOWNING, KH
通讯作者:
DOWNING, KH