Average molecular weights of different recombinant fragments, calculated from the SEC/MALLS data.

<p>Domain compositions of each molecule, including protein fusion tags, are shown in Supplementary <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0037872#pone.0037872.s005" target="_blank">Figure S5</a>.</p>