From: Structure-based directed evolution improves S. cerevisiae growth on xylose by influencing in vivo enzyme performance
Residue
Amino acids
Codons
Freq. WTa
V270
V A G
GBT
0.33
A273
A G
GST
0.5
T274
T I K Q
AYCā+āMAA
0.25
W307
W F Y I S T N
WHTā+āTGG
0.14
T309
T S K R N Q
AVSā+āCAG
0.29