EC Number |
Protein Variants |
Reference |
---|
1.1.1.195 | A278V |
the isoform CAD4 mutant shows strongly decreased catalytic efficiency compared to the wild type enzyme |
762157 |
1.1.1.195 | D57A |
about 4fold increase in catalytic efficiency |
726086 |
1.1.1.195 | F226A |
site-directed mutagenesis, the mutation leads to an enlarged phenolic binding site resulting in a 4fold increase in activity with sinapaldehyde, which in comparison to the smaller coumaraldehyde and coniferaldehyde substrates is disfavored by wild-type CAD2 |
741161 |
1.1.1.195 | G301F |
the isoform CAD4 mutant enzyme displays slightly elevated Km values for 4-coumaryl aldehyde but decreased Km for coniferyl aldehyde compared with those values of wild type. The mutant becomes more dedicated toward sinapyl aldehyde, with substantially decreased efficiency for coniferyl aldehyde compared to the wild type enzyme |
762157 |
1.1.1.195 | G575A/G192D |
the nucleotide substitution G575A occurs in BdCAD1 of the Bd4179 line, and consequently induces the G192D change in the highly conserved glycine-rich NADPH binding site GLGGVG |
741173 |
1.1.1.195 | H52A |
about 40% decrease in catalytic efficiency |
726086 |
1.1.1.195 | K169A |
site-directed mutagenesis, inactive mutant |
741161 |
1.1.1.195 | L119W |
the isoform CAD4 mutant displays a slightly reduced Km value for both 4-coumaryl aldehyde and coniferyl aldehyde compared to the wild type enzyme. The mutant becomes more efficient toward coniferaldehyde due to the very small Km value, with substantially decreased efficiency for both sinapyl aldehyde and 4-coumaryl aldehyde |
762157 |
1.1.1.195 | L119W/G301F |
the isoform CAD4 double mutant displays its substrate preference in the order coniferyl aldehyde over 4-coumaryl aldehyde over sinapyl aldehyde, with higher catalytic efficiency than that of wild type enzyme. The mutant displays 10 and 800fold increases in its catalytic efficiency for coniferyl aldehyde and 4-coumaryl aldehyde, respectively, and a 50% decrease in catalytic efficiency for sinapyl aldehyde as compared to the wild type enzyme |
762157 |
1.1.1.195 | more |
BdCAD1 targeted silencing via highly specific artificial microRNA, Transgenic growth and developmental phenotype, overview. Downregulation of BdCAD1 is associated with a significant decrease in S units and a slight yet not statistically significant increase in G units, resulting in a reduced S/G ratio in lignin composition |
733569 |