Cloned (Comment) | Organism |
---|---|
gene CYP707A3, recombinant expression in Escherichia coli | Arabidopsis thaliana |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
(1E,3R)-1-(3-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3R)-1-(4-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | (-)-Abz-E2B, selective inhibitor | Arabidopsis thaliana | |
(1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | strong and selective inhibitor, effects of the inhibitor on stomatal closure and drought tolerance, overview | Arabidopsis thaliana | |
(1E,3R)-4,4-dimethyl-1-[4-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3S)-1-(3-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3S)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | i.e. S-uniconazole | Arabidopsis thaliana | |
(1E,3S)-1-(4-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3S)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | (+)-Abz-E2B | Arabidopsis thaliana | |
(1E,3S)-4,4-dimethyl-1-[3-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
(1E,3S)-4,4-dimethyl-1-[4-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | - |
Arabidopsis thaliana | |
additional information | development of a selective inhibitor of CYP707A, (1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol, by structurally modifying S-uniconazole, which functions as an inhibitor of CYP707A and as a gibberellin biosynthetic enzyme, but with low yield. Design of CYP707A inhibitors, Abz-T compounds, that have simpler structures in which the 1,2,3-triazolyl ring of (1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol has been replaced with a triple bond, by successful synthesis in shorter steps, resulting in greater yields than that of (1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol. In the enzymatic assays, Abz-T compound (1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol acts as a strong and selective inhibitor and is a more practical and effective inhibitor of CYP707A than (-)-Abz-E2B. Analysis of the biological effects in Arabidopsis thaliana reveals that (1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol enhances abscisic acid effects more than (1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol in seed germination and in the expression of ABA-responsive genes. Treatment with (1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol induces stomatal closure and improves drought tolerance in Arabidopsis thaliana | Arabidopsis thaliana |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
(+)-abscisate + [reduced NADPH-hemoprotein reductase] + O2 | Arabidopsis thaliana | - |
8'-hydroxyabscisate + [oxidized NADPH-hemoprotein reductase] + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | Q9FH76 | - |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
(+)-abscisate + [reduced NADPH-hemoprotein reductase] + O2 | - |
Arabidopsis thaliana | 8'-hydroxyabscisate + [oxidized NADPH-hemoprotein reductase] + H2O | - |
? |
Synonyms | Comment | Organism |
---|---|---|
abscisic acid 8'-hydroxylase | - |
Arabidopsis thaliana |
CYP707A | - |
Arabidopsis thaliana |
CYP707A3 | - |
Arabidopsis thaliana |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
cytochrome P-450 | - |
Arabidopsis thaliana | |
NADPH-hemoprotein reductase | A flavoprotein containing both FMN and FAD. This enzyme catalyses the transfer of electrons from NADPH, an obligatory two-electron donor, to microsomal P-450 monooxygenases, EC 1.14.14._ | Arabidopsis thaliana |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.000035 | - |
(1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | pH 7.6, 22°C, recombinant isozyme CYP707A12 | Arabidopsis thaliana |
IC50 Value | IC50 Value Maximum | Comment | Organism | Inhibitor | Structure |
---|---|---|---|---|---|
0.000012 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A8 | Arabidopsis thaliana | (1E,3R)-1-(3-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.000054 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A4 | Arabidopsis thaliana | (1E,3R)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.000064 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A12 | Arabidopsis thaliana | (1E,3R)-4,4-dimethyl-1-[3-[4-(2,5,8,11-tetraoxadodecan-1-yl)-1H-1,2,3-triazol-1-yl]phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.0002 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A6 | Arabidopsis thaliana | (1E,3R)-1-(4-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.00024 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A7 | Arabidopsis thaliana | (1E,3S)-1-(3-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.001 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A5 | Arabidopsis thaliana | (1E,3S)-1-(4-[3-[2-(2-butoxyethoxy)ethoxy]prop-1-yn-1-yl]phenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.0011 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A3 | Arabidopsis thaliana | (1E,3S)-1-[4-(4-[[2-(2-butoxyethoxy)ethoxy]methyl]-1H-1,2,3-triazol-1-yl)phenyl]-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.0012 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A11 | Arabidopsis thaliana | (1E,3S)-4,4-dimethyl-1-[3-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.0015 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A10 | Arabidopsis thaliana | (1E,3R)-4,4-dimethyl-1-[4-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol | |
0.0077 | - |
pH 7.6, 22°C, recombinant isozyme CYP707A9 | Arabidopsis thaliana | (1E,3S)-4,4-dimethyl-1-[4-(2,5,8,11-tetraoxatetradec-13-yn-14-yl)phenyl]-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol |