KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0036 | - |
trans-cinnamate | isoforms C4H1/C4H2/p-coumaroyl ester 3-hydroxylase C3H3 complex, pH 7.0, 20°C | Populus trichocarpa | |
0.0037 | - |
trans-cinnamate | isoforms C4H1/C4H2 complex, pH 7.0, 20°C | Populus trichocarpa | |
0.0048 | - |
trans-cinnamate | isoform C4H1/p-coumaroyl ester 3-hydroxylase C3H3 complex, pH 7.0, 20°C | Populus trichocarpa | |
0.0059 | - |
trans-cinnamate | isoform C4H2/p-coumaroyl ester 3-hydroxylase C3H3 complex, pH 7.0, 20°C | Populus trichocarpa | |
0.007 | - |
trans-cinnamate | isoform C4H1, pH 7.0, 20°C | Populus trichocarpa | |
0.04 | - |
trans-cinnamate | isoform C4H2, pH 7.0, 20°C | Populus trichocarpa |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Populus trichocarpa | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
trans-cinnamate + [reduced NADPH-hemoprotein reductase] + O2 | - |
Populus trichocarpa | 4-hydroxycinnamate + [oxidized NADPH-hemoprotein reductase] + H2O | - |
? |
General Information | Comment | Organism |
---|---|---|
physiological function | cinnamic acid 4-hydroxylases isoforms C4H1 and C4H2 and a p-coumaroyl ester 3-hydroxylase C3H3 interact, forming heterodimeric C4H1/C4H2, C4H1/C3H3, and C4H2/C3H3 and heterotrimeric PtrC4H1/C4H2/C3H3 membrane protein complexes. Enzyme kinetics demonstrates that the enzymatic efficiency for any of the complexes is 70-6500 times greater than that of the individual proteins | Populus trichocarpa |