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. 2021 Nov 4;12:6410. doi: 10.1038/s41467-021-26735-5

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — a Structural alignment of the ghrelin-GHSR-G_i complex in Conformer 1 with the neurotensin-NTSR-G_i complex in the canonical state (PDB ID 6OS9). GHSR and NTSR are colored in slate and light gray, respectively. G_αi, G_β, and G_γ subunits are colored in cyan, pink, and light blue, respectively, in the structure with GHSR, and in dark purple, olive, and warm pink, respectively, in the structure with NTSR. The G_i-coupling mode is highly similar. b Structural alignment of the ghrelin-GHSR-G_i complex in Conformer 1 and 2. G_αi, G_β, and G_γ subunits are colored in cyan, pink and light blue, respectively, in Conformer 1, and in forest, ruby, and deep blue, respectively, in Conformer 2. GHSR is colored in slate in Conformer 1 and violet in Conformer 2.