A complex structure of arrestin-2 bound to a G protein-coupled receptor
Arrestins comprise a family of signal regulators of G-protein-coupled receptors (GPCRs), which include arrestins 1 to 4. While arrestins 1 and 4 are visual arrestins dedicated to rhodopsin, arrestins 2 and 3 (Arr2 and Arr3) are β-arrestins known to regulate many nonvisual GPCRs. The dynamic and promiscuous coupling of Arr2 to nonvisual GPCRs has posed technical challenges to tackle the basis of arrestin binding to GPCRs. Here we report the structure of Arr2 in complex with neurotensin receptor 1 (NTSR1), which reveals an overall assembly that is strikingly different from the visual arrestin-rhodopsin complex by a 90° rotation of Arr2 relative to the receptor. In this new configuration, intracellular loop 3 (ICL3) and transmembrane helix 6 (TM6) of the receptor are oriented toward the N-terminal domain of the arrestin, making it possible for GPCRs that lack the C-terminal tail to couple Arr2 through their ICL3. Molecular dynamics simulation and crosslinking data further support the assembly of the Arr2‒NTSR1 complex. Sequence analysis and homology modeling suggest that the Arr2‒NTSR1 complex structure may provide an alternative template for modeling arrestin-GPCR interactions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
Cell research - 29(2019), 12 vom: 27. Dez., Seite 971-983 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yin, Wanchao [VerfasserIn] |
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| Links: |
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| Themen: |
ARRB2 protein, human |
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| Anmerkungen: |
Date Completed 14.09.2020 Date Revised 18.04.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1038/s41422-019-0256-2 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM303786698 |
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| 100 | 1 | |a Yin, Wanchao |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A complex structure of arrestin-2 bound to a G protein-coupled receptor |
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| 500 | |a Date Revised 18.04.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Arrestins comprise a family of signal regulators of G-protein-coupled receptors (GPCRs), which include arrestins 1 to 4. While arrestins 1 and 4 are visual arrestins dedicated to rhodopsin, arrestins 2 and 3 (Arr2 and Arr3) are β-arrestins known to regulate many nonvisual GPCRs. The dynamic and promiscuous coupling of Arr2 to nonvisual GPCRs has posed technical challenges to tackle the basis of arrestin binding to GPCRs. Here we report the structure of Arr2 in complex with neurotensin receptor 1 (NTSR1), which reveals an overall assembly that is strikingly different from the visual arrestin-rhodopsin complex by a 90° rotation of Arr2 relative to the receptor. In this new configuration, intracellular loop 3 (ICL3) and transmembrane helix 6 (TM6) of the receptor are oriented toward the N-terminal domain of the arrestin, making it possible for GPCRs that lack the C-terminal tail to couple Arr2 through their ICL3. Molecular dynamics simulation and crosslinking data further support the assembly of the Arr2‒NTSR1 complex. Sequence analysis and homology modeling suggest that the Arr2‒NTSR1 complex structure may provide an alternative template for modeling arrestin-GPCR interactions | ||
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| 650 | 7 | |a Receptors, Neurotensin |2 NLM | |
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| 650 | 7 | |a neurotensin type 1 receptor |2 NLM | |
| 700 | 1 | |a Li, Zhihai |e verfasserin |4 aut | |
| 700 | 1 | |a Jin, Mingliang |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Yu-Ling |e verfasserin |4 aut | |
| 700 | 1 | |a de Waal, Parker W |e verfasserin |4 aut | |
| 700 | 1 | |a Pal, Kuntal |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Yanting |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Xiang |e verfasserin |4 aut | |
| 700 | 1 | |a He, Yuanzheng |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiaoxi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Hu |e verfasserin |4 aut | |
| 700 | 1 | |a Melcher, Karsten |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Cong, Yao |e verfasserin |4 aut | |
| 700 | 1 | |a Edward Zhou, X |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Xuekui |e verfasserin |4 aut | |
| 700 | 1 | |a Eric Xu, H |e verfasserin |4 aut | |
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