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. 2018 Apr 30;8:6755. doi: 10.1038/s41598-018-25133-0

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© The Author(s) 2018

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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Hydrodynamic radius analysis from SEC and DLS. (a) SEC analysis showing the normalized elution peaks for individual runs of αS-1 (green), αS-2 (blue), αS-4 (red), and αS-8 (yellow). (b) Volume-averaged size distribution curves from triplicate DLS measurements of αS-1 (green), αS-2 (blue), αS-4 (red), and αS-8 (yellow). (c) Comparison of R_h determined from SEC (circles) and DLS (squares) for αS-1 (green), αS-2 (blue), αS-4 (red), and αS-8 (yellow) (error bars: s.e.m.). The results are comparable: R_h increases sublinearly with molecular mass. Black crosses: results for standard proteins of known molecular weight and R_h.