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. 2019 Apr 5;10:604. doi: 10.3389/fmicb.2019.00604

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Copyright © 2019 Abdel-Nour, Su, Duncan, Li, Raju, Shamoun, Valton, Ginevra, Jarraud, Guyard, Kerman and Terebiznik.

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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Lcl forms collagenous triple helix structures. (A) Circular dichroism profiles of full length His-tagged Lcl (Lcl), His-tagged Lcl lacking the C-terminal domain (LclΔC) and His-tagged Lcl lacking the collagenous repeat domain (LclΔR). (B–D) Coomassie stained gels of purified His-tagged Lcl (B), His-tagged LclΔR (C), and His-tagged LclΔC (D) after incubation with trypsin for the indicated time points with or without heat denaturing at 95°C for 10 min. Black arrowheads with labels indicated the full-length proteins and open arrowheads denote digestion products.