The role of G protein conformation in receptor-G protein selectivity.
The role of G protein conformation in receptor-G protein selectivity.
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DOI:
10.1038/s41589-022-01231-z
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发表时间:
2023-06
影响因子:
14.8
通讯作者:
Lambert, Nevin A.
中科院分区:
文献类型:
--
作者:
Jang, Wonjo;Lu, Sumin;Xu, Xin;Wu, Guangyu;Lambert, Nevin A.
G protein-coupled receptors (GPCRs) selectively activate at least one of the four families of heterotrimeric G proteins, but the mechanism of coupling selectivity remains unclear. Structural studies emphasize structural complementarity of GPCRs and nucleotide-free G proteins, but selectivity is likely to be determined by transient intermediate state complexes that exist prior to nucleotide release. Here we study coupling to nucleotide-decoupled G protein variants that can adopt conformations similar to receptor-bound G proteins without releasing nucleotide, and are therefore able to bypass intermediate state complexes. We find that selectivity is degraded when nucleotide release is not required for GPCR-G protein complex formation, to the extent that most GPCRs interact with most nucleotide-decoupled G proteins. These findings demonstrate the absence of absolute structural incompatibility between noncognate receptor-G protein pairs, and are consistent with the hypothesis that transient intermediate states are partly responsible for coupling selectivity.
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影响因子:
14.9
作者:
Kooistra AJ;Mordalski S;Pándy-Szekeres G;Esguerra M;Mamyrbekov A;Munk C;Keserű GM;Gloriam DE
通讯作者:
Gloriam DE
影响因子:
64.8
作者:
Koehl A;Hu H;Maeda S;Zhang Y;Qu Q;Paggi JM;Latorraca NR;Hilger D;Dawson R;Matile H;Schertler GFX;Granier S;Weis WI;Dror RO;Manglik A;Skiniotis G;Kobilka BK
通讯作者:
Kobilka BK
DOI:
10.1093/protein/gzw049
发表时间:
2016-12
期刊:
Protein engineering, design & selection : PEDS
影响因子:
--
作者:
Carpenter B;Tate CG
通讯作者:
Tate CG
DOI:
10.1016/j.bbrc.2006.06.175
发表时间:
2006-09-01
影响因子:
3.1
作者:
Kohno, Masashi;Hasegawa, Hitoshi;Yasukawa, Masaki
通讯作者:
Yasukawa, Masaki
影响因子:
64.5
作者:
Du, Yang;Duc, Nguyen Minh;Chung, Ka Young
通讯作者:
Chung, Ka Young