scholarly journals Negative regulatory mechanism of phospholipase C signaling triggered by G protein—coupled receptor

2009 ◽  
Vol 134 (5) ◽  
pp. 254-258 ◽  
Author(s):  
Isao Matsuoka ◽  
Masaaki Ito
1998 ◽  
Vol 273 (14) ◽  
pp. 8161-8168 ◽  
Author(s):  
Derrick T. Brazill ◽  
David F. Lindsey ◽  
John D. Bishop ◽  
Richard H. Gomer

2011 ◽  
Vol 124 (19) ◽  
pp. 3292-3304 ◽  
Author(s):  
A. Cartier ◽  
A. Parent ◽  
P. Labrecque ◽  
G. Laroche ◽  
J.-L. Parent

2000 ◽  
Vol 275 (42) ◽  
pp. 32603-32610 ◽  
Author(s):  
Martina Schmidt ◽  
Markus Frings ◽  
Marie-Luise Mono ◽  
Yuanjian Guo ◽  
Paschal A. Oude Weernink ◽  
...  

2007 ◽  
Vol 104 (39) ◽  
pp. 15543-15548 ◽  
Author(s):  
S. Citro ◽  
S. Malik ◽  
E. A. Oestreich ◽  
J. Radeff-Huang ◽  
G. G. Kelley ◽  
...  

2008 ◽  
Vol 295 (3) ◽  
pp. E665-E671 ◽  
Author(s):  
Susanne U. Miedlich ◽  
Abdul B. Abou-Samra

The parathyroid hormone (PTH)/PTH-related peptide (PTHrP) receptor (PTH1R) belongs to family B of seven-transmembrane-spanning receptors and is activated by PTH and PTHrP. Upon PTH stimulation, the rat PTH1R becomes phosphorylated at seven serine residues. Elimination of all PTH1R phosphorylation sites results in prolonged cAMP accumulation and impaired internalization in stably transfected LLC-PK1 cells. The present study explores the role of individual PTH1R phosphorylation sites in PTH1R signaling through phospholipase C, agonist-dependent receptor internalization, and regulation by G protein-coupled receptor kinases. By means of transiently transfected COS-7 cells, we demonstrate that the phosphorylation-deficient (pd) PTH1R confers dramatically enhanced coupling to Gq/11 proteins upon PTH stimulation predominantly caused by elimination of Ser491/492/493, Ser501, or Ser504. Reportedly, impaired internalization of the pd PTH1R, however, is not dependent on a specific phosphorylation site. In addition, we show that G protein-coupled receptor kinase 2 interferes with pd PTH1R signaling to Gq/11 proteins at least partially by direct binding to Gq/11 proteins.


2016 ◽  
Vol 28 (6) ◽  
pp. 595-605 ◽  
Author(s):  
Sabrina M. de Munnik ◽  
Rosan van der Lee ◽  
Daniëlle M. Velders ◽  
Jody van Offenbeek ◽  
Laura Smits-de Vries ◽  
...  

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