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. 2016 Oct 10;6:34869. doi: 10.1038/srep34869

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Copyright © 2016, The Author(s)

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The first three illustrate the NbHul6 series. FERG-VGLW mutations are highlighted in red, while the W111R substitution is in blue. The last two are the wt sequences corresponding to the VHHs used for swapping. The fragments swapped between frameworks are underlined. In green are reported the discrepancies between literature and the PDB data.