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Figure 4.
Fig. 4. Ribbon representation of crystal structure of the
QPDWGH mutant of MBP complexed with GalNAc. Stereo ribbon
drawing shows the vicinity of the GalNAc binding site with the
sugar and selected residues drawn as balls-and-sticks. The
glycine-rich loop stacked against Trp189 is highlighted in gray
and Ca^2+ 1 and 2 are shown as gray spheres. The hydrogen bond
between Ser154 and His202 is drawn as a dashed line.
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