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. 2016 May 31;8(6):1136–1155. doi: 10.1080/19420862.2016.1193659

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© 2016 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-Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.

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Figure 3. — Identification of the primary sequences of SB4 and the reference product. (A) Mirror images of chromatograms of Lys-C–generated peptides of SB4 and the reference product, etanercept. (B) Comparison of peptide maps resulting from digestion with trypsin, Lys-C, and Asp-N.