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Figure 5.
Figure 5. Stereo views of the sugar binding structures in
the XBD with the F[obs] - F[calc] omit electron density maps
contoured at 3s. (a) In the subdomain a in the FXYN/X2 complex,
(b) subdomain g in the FXYN/X3 complex, (c) subdomain g in the
FXYN/Glc complex, (d) subdomain a in the FXYN/Gal complex, (e)
subdomain g in the FXYN/Lac complex, and (f) subdomain a in the
FXYN/Lac complex from a different view point. Hydrogen bonding
interactions between the enzyme and sugars are indicated by
broken lines. Carbon numbers of bound xylose are indicated.
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