Figure 4
Capsaicin binding in PaGT3. (a) mFo − DFc polder map (purple mesh) for capsaicin (wheat sticks) contoured at 5σ. The distances from the putative glycosylation site on capsaicin to the catalytic histidine (His20) and the C1 carbon of UDP-2FGlc (yellow sticks) are indicated. (b) The interaction between capsaicin and PaGT3 residues shows that the acceptor is mainly stabilized through the hydrophobic interactions in the acceptor-binding pocket. |