Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli | Medicago sativa |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0084 | - |
4,2',4'-trihydrochalcone | pH 7.5, 25°C | Medicago sativa | |
0.0227 | - |
2',4'-dihydroxychalcone | pH 7.5, 25°C | Medicago sativa | |
0.0425 | - |
4,2'-dihydrochalcone | pH 7.5, 25°C | Medicago sativa | |
0.112 | - |
4,2',4',6'-tetrahydrochalcone | pH 7.5, 25°C | Medicago sativa |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
24000 | - |
gel filtration | Medicago sativa |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Medicago sativa | P28012 | - |
- |
Purification (Comment) | Organism |
---|---|
- |
Medicago sativa |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2',4'-dihydroxychalcone | - |
Medicago sativa | 7-hydroxy-2-phenyl-chroman-4-one | - |
? | |
2',4-dihydroxychalcone | - |
Medicago sativa | ? | - |
? | |
4,2',4',6'-tetrahydrochalcone | - |
Medicago sativa | ? | - |
? | |
4,2',4'-trihydrochalcone | - |
Medicago sativa | ? | - |
? | |
4,2'-dihydrochalcone | - |
Medicago sativa | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | 1 * 24000, SDS-PAGE | Medicago sativa |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
5526 | - |
4,2'-dihydrochalcone | pH 7.5, 25°C | Medicago sativa | |
5530 | - |
4,2'-dihydrochalcone | pH 7.5, 25°C | Medicago sativa | |
45300 | - |
2',4'-dihydroxychalcone | pH 7.5, 25°C | Medicago sativa | |
135000 | - |
4,2',4'-trihydrochalcone | pH 7.5, 25°C | Medicago sativa | |
670800 | - |
4,2',4',6'-tetrahydrochalcone | pH 7.5, 25°C | Medicago sativa | |
671000 | - |
4,2',4',6'-tetrahydrochalcone | pH 7.5, 25°C | Medicago sativa |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
additional information | - |
at pH 7.5 reactions of 4,2',4',6'-tetrahydrochalcone and 4,2',4'-trihydrochalcone and 2',4'-dihydroxychalcone are 90% diffusion controlled, whereas cyclization of 4,2'-dihydroxychalcone is limited by a chemical step that likely reflects the higher pKa of the 2'-hydroxyl group. At pH 6.0 the reactions with 4,2',4',6'-tetrahydrochalcone and 4,2',4'-trihydroxychalcone are 50% diffusion limited, whereas the reactions of 2',4'-dihydroxychalcone and 4,2'-dihydroxychalcone are limited by chemical steps | Medicago sativa |