Agonist-independent GPCR activity regulates anterior-posterior targeting of olfactory sensory neurons.
Agonist-independent GPCR activity regulates anterior-posterior targeting of olfactory sensory neurons.
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DOI:
10.1016/j.cell.2013.08.033
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发表时间:
2013-09-12
期刊:
影响因子:
64.5
通讯作者:
Sakano H
中科院分区:
文献类型:
--
作者:
Nakashima A;Takeuchi H;Imai T;Saito H;Kiyonari H;Abe T;Chen M;Weinstein LS;Yu CR;Storm DR;Nishizumi H;Sakano H
G-protein coupled receptors (GPCRs) are known to possess two different conformations, active and inactive, and spontaneously alternate between the two in the absence of ligands. Here, we analyzed the agonist-independent GPCR activity for its possible role in receptor-instructed axonal projection. We generated transgenic mice expressing activity mutants of the β2-adrenergic receptor, a well-characterized GPCR with the highest homology to odorant receptors (ORs). We found that mutants with altered agonist-independent activity changed the transcription levels of axon targeting molecules, e.g., Neuropilin-1 and Plexin-A1, but not of glomerular segregation molecules, e.g., Kirrel2 and Kirrel3, thus, causing shifts in glomerular locations along the anterior-posterior (A-P) axis. Knockout and in vitro experiments demonstrated that Gs, but not Golf, is responsible for mediating the agonist-independent GPCR activity. We conclude that the equilibrium of conformational transitions set by each OR is the major determinant of expression levels of A-P targeting molecules.
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影响因子:
3.4
作者:
Nakatani, H;Serizawa, S;Sakano, H
通讯作者:
Sakano, H
DOI:
10.1073/pnas.0408268102
发表时间:
2005-05-17
影响因子:
11.1
作者:
Chen, M;Gavrilova, O;Weinstein, LS
通讯作者:
Weinstein, LS
影响因子:
64.5
作者:
Mombaerts, P;Wang, F;Axel, R
通讯作者:
Axel, R
影响因子:
4.8
作者:
Ballesteros, JA;Jensen, AD;Javitch, JA
通讯作者:
Javitch, JA
影响因子:
56.9
作者:
Imai, Takeshi;Suzuki, Misao;Sakano, Hitoshi
通讯作者:
Sakano, Hitoshi