Activating Compound | Comment | Organism | Structure |
---|---|---|---|
glycine-HCl | glycine-HCl buffer stimulates about 2fold at pH 9 in comparison with Tris-HCl buffer | Petroselinum crispum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
additional information | enzyme is inhibited in the crude extract | Petroselinum crispum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.001 | - |
quercetin | less than 0.001 mM | Petroselinum crispum | |
0.5 | - |
UDPglucose | - |
Petroselinum crispum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
UDPglucose + a flavonol | Petroselinum crispum | the enzyme is involved in the flavone glycoside pathway in parsley. Enzyme activity is increased by prior illumination of the cell cultures, maximal activity is reached about 24 h after onset of illumination | UDP + a flavonol 3-O-D-glucoside | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Petroselinum crispum | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cell suspension culture | - |
Petroselinum crispum | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | no activity with dihydroquercetin | Petroselinum crispum | ? | - |
? | |
UDPglucose + 3'-O-methylquercetin | 28% of the activity with quercetin | Petroselinum crispum | UDP + 3'-O-methylquercetin 3-O-glucoside | - |
? | |
UDPglucose + 4,7-dihydroxyflavonol | 27% of the activity with quercetin | Petroselinum crispum | UDP + 4,7-dihydroxyflavonol 3-O-glucoside | - |
? | |
UDPglucose + 5-deoxyquercetin | 57% of the activity with quercetin | Petroselinum crispum | UDP + 5-deoxyquercetin 3-O-glucoside | - |
? | |
UDPglucose + a flavonol | the enzyme is involved in the flavone glycoside pathway in parsley. Enzyme activity is increased by prior illumination of the cell cultures, maximal activity is reached about 24 h after onset of illumination | Petroselinum crispum | UDP + a flavonol 3-O-D-glucoside | - |
? | |
UDPglucose + kaempferol | 70% of the activity with quercetin | Petroselinum crispum | UDP + kaempferol 3-O-glucoside | - |
? | |
UDPglucose + kaempferol-4'-O-methylether | 57% of the activity with quercetin | Petroselinum crispum | UDP + ? | - |
? | |
UDPglucose + quercetin | quercetin is the best acceptor | Petroselinum crispum | UDP + quercetin 3-O-glucoside | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8 | - |
broad pH-optimum around pH 8 | Petroselinum crispum |