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. 2022 Feb 8;17(1):2024405. doi: 10.1080/15592324.2021.2024405

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© 2022 The Author(s). Published with license by Taylor & Francis Group, LLC.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Structural comparison of unconventional G protein OsYchF1 with the Rattus norvegicus heterotrimeric G protein α-subunit and small human Ras-related G protein C. (a-c) Cartoon surface representation of the nucleotide-free 3-D structure of OsYchF1, R. norvegicus heterotrimeric G protein α-subunit, and human Ras-related G protein C. The G1 motif/P-loop (GxxxxGK(S/T)), the G2 motif (xT/Sx)the G3 motif (hhhDxxG) the G4 motif ((N/T)(M/L)xD), and the G5 motif ((T/G) (C/S) A) re indicated. (d-f) Details of the G1 motif (GxxxxGK(S/T)), P-loop, structure of OsYchF1, R. norvegicus heterotrimeric G protein α-subunit with GppNHp that is shown as sticks, and human Ras-related G protein C in the presence of GDP that is shown as sticks. (g-i) Details of G4 ((N/T)KxD) and G5 ((T/G) (C/S) A) motif structure of OsYchF1, R. norvegicus heterotrimeric G protein α-subunit with GppNHp that is shown as sticks, and small human Ras-related G protein C in the presence of GDP that is shown as sticks.