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Figure 4
(a) OMIT difference 2Fo − Fc electron density of xylohexaose in E177Q–X6 contoured at the 1.0σ level. (b) Chemical diagram of conventional direct hydrogen-bond interactions between X6 and E177Q residues. (c) Water-mediated interactions between X6 and the active-site residues and the unconventional C—H⋯O hydrogen bonds between Glu86 and the −1 xylose subunit in E177Q–X6.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 70| Part 1| December 2014| Pages 11-23
doi:10.1107/S1399004713023626
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