GαL1 (Gα14) Couples the Opioid Receptor-Like1 Receptor to Stimulation of Phospholipase C
GαL1 (Gα14) Couples the Opioid Receptor-Like1 Receptor to Stimulation of Phospholipase C
复制标题
GαL1 (Gα14) 将阿片类受体样 1 受体与磷脂酶 C 的刺激结合
DOI:
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Y. Wong
中科院分区:
文献类型:
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作者:
L. Yung;S. Joshi;R. Y. Chan;J. S. Chan;G. Pei;Y. Wong
In most tissues and cells the opioid receptor-like (ORL1) receptor regulates effectors primarily through the pertussis toxin (PTX)-sensitive guanine nucleotide-binding regulatory proteins (G proteins) Gi/Go. Many Gi-coupled receptors possess additional capability to interact with one or more PTX-insensitive G proteins. Using the βγ-induced stimulation of type 2 adenylyl cyclase as a readout, we screened the ability of ORL1 receptor to interact with a panel of PTX-insensitive G proteins. In the presence of PTX, activation of the ORL1 receptor resulted in the stimulation of type 2 adenylyl cyclase only in HEK 293 cells coexpressing the α subunit of Gz, G12, G14, or G16, but not in cells coexpressing G11, G13, or Gq. Coupling to both Gz and G16 was expected because close relatives of the ORL1 receptor, the opioid receptors, are known to couple productively to these G proteins. ORL1 receptor coupling to either G12 or G14 has not been demonstrated. As predicted by the type 2 adenylyl cyclase assays, activation of the ORL1 receptor resulted in the formation of inositol phosphates in COS-7 cells transiently cotransfected with Gα14. The ORL1receptor-mediated stimulation of phospholipase C was found to be Gα14 dependent, agonist dose dependent, ligand selective, and PTX insensitive. We conclude that G14 can link the ORL1 receptor to regulation of phopholipase C.
DOI:
10.1073/pnas.88.22.10049
发表时间:
1991-11-01
影响因子:
11.1
作者:
WILKIE, TM;SCHERLE, PA;SIMON, MI
通讯作者:
SIMON, MI
DOI:
10.1210/endo.137.8.8754733
发表时间:
1996
期刊:
Endocrinology.
影响因子:
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作者:
Maeda,S;Wu,S;Juppner,H;Green,J;Aragay,AM;Fagin,JA;Clemens,TL
通讯作者:
Clemens,TL
DOI:
10.1016/0169-328x(95)00096-b
发表时间:
1995
期刊:
Brain research. Molecular brain research
影响因子:
--
作者:
Wick,MJ;Minnerath,SR;Roy,S;Ramakrishnan,S;Loh,HH
通讯作者:
Loh,HH