Application | Comment | Organism |
---|---|---|
nutrition | improvement of strawberry flavor, down-regulation of UGT71K3 transcript expression in strawberry receptacles led to a significant reduction in the level of 4-hydroxy-2,5-dimethyl-3(2H)-furanone-glucoside and a smaller decline in 4-hydroxy-2,5-dimethyl-3(2H)-furanone-glucoside-malonate compared with the level in control fruits | Fragaria x ananassa |
Cloned (Comment) | Organism |
---|---|
heterologously expression as GST-Tag-fusion proteins in Escherichia coli | Fragaria x ananassa |
Protein Variants | Comment | Organism |
---|---|---|
V383A | mutant of UGT71K3b, mutation leads to enhanced 4-hydroxy-2,5-dimethyl-3(2H)-furanone glucosylation activity compared to the wild-type enzyme, 2fold increase in 5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone glycosylation activity relative to the wild-type enzyme | Fragaria x ananassa |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.213 | - |
5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3b | Fragaria x ananassa | |
0.397 | - |
5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3a | Fragaria x ananassa | |
0.406 | - |
4-hydroxy-2,5-dimethyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3b | Fragaria x ananassa | |
0.9 | - |
4-hydroxy-2,5-dimethyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3a | Fragaria x ananassa |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Fragaria x ananassa | A0A387IZV4 | - |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
UDP-alpha-D-glucose + 4-hydroxy-2,5-dimethyl-3(2H)-furanone | the enzyme catalyzes the glucosylation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone, the key strawberry flavor compound in strawberry fruit. UGT71K3b is the more efficient enzyme compared with UGT71K3a for the glucosylation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone | Fragaria x ananassa | UDP + 2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-yl beta-D-glucopyranoside | - |
? | |
UDP-alpha-D-glucose + 5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone | - |
Fragaria x ananassa | UDP + 2-ethyl-5-methyl-4-oxo-4,5-dihydrofuran-3-yl beta-D-glucopyranoside | - |
? | |
UDP-alpha-D-glucose + benzoic acid | UGT71K3a/b exhibits minor catalytic activity toward benzoic acid (6-10% relative activity). Other alcohols are not converted (less than 3%) | Fragaria x ananassa | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
UDP-Glc:HDMF glucosyltransferase | - |
Fragaria x ananassa |
UGT71K3a | - |
Fragaria x ananassa |
UGT71K3b | - |
Fragaria x ananassa |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | - |
assay at | Fragaria x ananassa |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | - |
assay at | Fragaria x ananassa |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0552 | - |
4-hydroxy-2,5-dimethyl-3(2H)-furanone | pH 7.0, 30°C, UGT71K3a | Fragaria x ananassa | |
0.146 | - |
4-hydroxy-2,5-dimethyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3b | Fragaria x ananassa | |
0.184 | - |
5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3a | Fragaria x ananassa | |
0.387 | - |
5-ethyl-4-hydroxy-2-methyl-3(2H)-furanone | pH 7.0, 30°C, allelic protein UGT71K3b | Fragaria x ananassa |