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. 2015 Jul 14;6:716. doi: 10.3389/fmicb.2015.00716

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Copyright © 2015 Valladares, Graves, Wright, Gardner, Lorca and Gonzalez.

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) or licensor 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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Analysis of oligomeric status of FRedA, FRedB, and FRedA/B using size exclusion chromatography. Proteins (250 μg total) were run alone (Blue) or after incubation with 50 μM FMN (Red). The elution profile of the 50 μM FMN control is indicated by the dotted line (Black). Peaks corresponding to the expected elution volume for monomeric (∼21 kDa) and dimeric (∼43 kDa) proteins are indicated by M and D, respectively. (A) The elution profile for individually purified FRedB; (B) the elution profile for copurified FRedA/B.