Fig. 4
From: Microbial production of next-generation stevia sweeteners
RMSD between the tertiary structure of UGT76G1 and the four crystal based structural templates. Blue <1 Å; Green 1–2 Å; Yellow 2–3 Å; Orange 3–4 Å and Red >4 Å. Numbering is according to the UGT76G1 amino acid sequence. S UGT76G1 residues selected for site-saturation mutagenesis. C residues considered for site-saturation mutagenesis but found to be fully conserved