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(A) Ribbon drawing of the SQD1 structure shown in stereoview. The large domain is shown in blue with additional 7th strand of Rossmann motif in green; small domain is gold; the C terminus is labeled C. Bound NAD (aqua) and UDP-glucose (red) are shown as space-filling models. Asterisk indicates β-hairpin insertion loop. (B) View of SQD1 homodimer along C2 dimer axis showing interaction of four-helix bundle. The figure was generated by using molscript (46) and raster3d (47).
