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. 2020 Feb 5;8:51. doi: 10.3389/fchem.2020.00051

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Copyright © 2020 Bai, Lao, Chen, Tang and Wei.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Influences of C₆₀ and C₆₀(OH)₈ on the hIAPP protofibril. The average probability of each type of secondary structure (A), the β-sheet probability of each amino acid of hIAPP (B), the snapshots of hIAPP protofibril at t = 300 ns (C), the PDF of the inter-chain contact number (abbreviated as #) (D) and the inter-chain H-bond number (E) for hIAPP-fibril, hIAPP-fibril + C₆₀, and hIAPP-fibril + C₆₀(OH)₈ systems, contact number between C₆₀/C₆₀(OH)₈ and each amino acid of hIAPP (F), the number of H-bond formed between C₆₀(OH)₈ and the main-chain (MC) and side-chain (SC) atoms of each amino acid (G). The β1, β2, and turn regions are highlighted by rectangles in (C) and by yellow arrows and light blue line in (F,G).