Structural Basis for Regulation of GPR56/ADGRG1 by Its Alternatively Spliced Extracellular Domains.
Structural Basis for Regulation of GPR56/ADGRG1 by Its Alternatively Spliced Extracellular Domains.
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DOI:
10.1016/j.neuron.2016.08.022
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发表时间:
2016-09-21
期刊:
影响因子:
16.2
通讯作者:
Araç D
中科院分区:
文献类型:
--
作者:
Salzman GS;Ackerman SD;Ding C;Koide A;Leon K;Luo R;Stoveken HM;Fernandez CG;Tall GG;Piao X;Monk KR;Koide S;Araç D
Adhesion G-protein-coupled receptors (aGPCRs) play critical roles in diverse neurobiological processes including brain development, synaptogenesis, and myelination. aGPCRs have large alternatively spliced extracellular regions (ECRs) that likely mediate intercellular signaling; however, the precise roles of ECRs remain unclear. The aGPCR GPR56/ADGRG1 regulates both oligodendrocyte and cortical development. Accordingly, human GPR56 mutations cause myelination defects and brain malformations. Here, we determined the crystal structure of the GPR56 ECR, the first structure of any complete aGPCR ECR, in complex with an inverse-agonist monobody, revealing a GPCR-Autoproteolysis-Inducing domain and a previously unidentified domain that we term Pentraxin/Laminin/neurexin/sex-hormone-binding-globulin-Like (PLL). Strikingly, PLL domain deletion caused increased signaling and characterizes a GPR56 splice variant. Finally, we show that an evolutionarily conserved residue in the PLL domain is critical for oligodendrocyte development in vivo. Thus, our results suggest that the GPR56 ECR has unique and multifaceted regulatory functions, providing novel insights into aGPCR roles in neurobiology.
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DOI:
10.1126/science.1244392
发表时间:
2014-02-14
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Bae BI;Tietjen I;Atabay KD;Evrony GD;Johnson MB;Asare E;Wang PP;Murayama AY;Im K;Lisgo SN;Overman L;Šestan N;Chang BS;Barkovich AJ;Grant PE;Topçu M;Politsky J;Okano H;Piao X;Walsh CA
通讯作者:
Walsh CA
影响因子:
4.8
作者:
Kishore, Ayush;Purcell, Ryan H.;Hall, Randy A.
通讯作者:
Hall, Randy A.
影响因子:
3.5
作者:
Jin, Zhaohui;Tietjen, Ian;Piao, Xianhua
通讯作者:
Piao, Xianhua
影响因子:
64.5
作者:
Braunschweig U;Gueroussov S;Plocik AM;Graveley BR;Blencowe BJ
通讯作者:
Blencowe BJ
影响因子:
11.4
作者:
Arac, Demet;Boucard, Antony A.;Bolliger, Marc F.;Nguyen, Jenna;Soltis, S. Michael;Suedhof, Thomas C.;Brunger, Axel T.
通讯作者:
Brunger, Axel T.