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Figure 4
Thermograms and binding isotherms with theoretical fits for the binding of (GlcNAc)3–6 to the OfChtI-CAD E148Q mutant: (a) (GlcNAc)3, (b) (GlcNAc)4, (c) (GlcNAc)5, (d) (GlcNAc)6. (e) Free-energy changes for (GlcNAc)3–6 binding to OfChtI-CAD E148Q and (GlcNAc)4–6 binding to SmChiB E144Q (from Norberg et al., 2010BB27) relative to the number of GlcNAc units in the saccharide chain. (GlcNAc)3 binds to OfChtI-CAD E148Q at two sites. S1 is the strong binding site with a low Kd value and S2 is the weak binding site with a high Kd value.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 70| Part 4| April 2014| Pages 932-942
https://doi.org/10.1107/S1399004713033841
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