EC Number | Activating Compound | Comment | Organism | Structure |
---|---|---|---|---|
4.2.3.20 | Mn2+ | inhibition above 0.6 mM, activation below | Citrus limon |
EC Number | Cloned (Comment) | Organism |
---|---|---|
4.2.3.20 | - |
Citrus limon |
4.2.3.114 | expression in Escherichia coli | Citrus limon |
4.2.3.120 | expression in Escherichia coli | Citrus limon |
EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
4.2.3.20 | geranyl diphosphate | substrate inhibition above 0.01 mM; substrate inhibition above 0.01 mM | Citrus limon | |
4.2.3.20 | K+ | maximum inhibition above 100 mM; maximum inhibition above 100 mM | Citrus limon | |
4.2.3.20 | Mn2+ | above 0.6 mM, activation below; above 0.6 mM, activation below | Citrus limon |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
4.2.3.20 | 0.0007 | - |
geranyl diphosphate | - |
Citrus limon | |
4.2.3.114 | 0.0027 | - |
geranyl diphosphate | pH 7.0, 30°C | Citrus limon | |
4.2.3.120 | 0.0031 | - |
geranyl diphosphate | pH 7.0, 30°C | Citrus limon |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
4.2.3.20 | additional information | divalent metal ion required, probably Mn2+ | Citrus limon | |
4.2.3.114 | Mg2+ | or Mn2+, Mn2+ is preferred over Mg2+ | Citrus limon | |
4.2.3.114 | Mn2+ | or Mg2+, Mn2+ is preferred over Mg2+, optimum concentration 0.6 mM | Citrus limon | |
4.2.3.120 | Mg2+ | or Mn2+, Mn2+ is preferred over Mg2+ | Citrus limon | |
4.2.3.120 | Mn2+ | or Mg2+, Mn2+ is preferred over Mg2+, optimum concentration 0.6 mM | Citrus limon |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
4.2.3.20 | geranyl diphosphate | Citrus limon | - |
(+)-(R)-limonene + diphosphate | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
4.2.3.20 | Citrus limon | Q8L5K1 | - |
- |
4.2.3.20 | Citrus limon | Q8L5K3 | - |
- |
4.2.3.114 | Citrus limon | Q8L5K4 | - |
- |
4.2.3.120 | Citrus limon | Q8L5K2 | - |
- |
EC Number | Reaction | Comment | Organism | Reaction ID |
---|---|---|---|---|
4.2.3.20 | geranyl diphosphate = (R)-limonene + diphosphate | requires a divalent metal ion (preferably Mn2+) for catalysis | Citrus limon |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
4.2.3.20 | fruit | peel of young developing fruit | Citrus limon | - |
4.2.3.114 | fruit | glants of fruit lavedo and fruit peel | Citrus limon | - |
4.2.3.120 | fruit | glants of fruit lavedo and fruit peel | Citrus limon | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
4.2.3.20 | geranyl diphosphate | - |
Citrus limon | (+)-(R)-limonene + diphosphate | - |
? | |
4.2.3.20 | geranyl diphosphate | - |
Citrus limon | (+)-(R)-limonene + diphosphate | product is exclusively R-(+)-limonene | ? | |
4.2.3.114 | geranyl diphosphate | - |
Citrus limon | gamma-terpinene + diphosphate | products are 71.4% gamma-terpinene, with lower amounts of limonene (9.1%), alpha-pinene (5.6%), beta-pinene (4.7%), alpha-terpinolene (3.7%), alpha-thujene (2.5%), alpha-terpinene (1.7%), myrcene (0.9%), sabinene (0.4%) and a trace of p-cymene | ? | |
4.2.3.120 | geranyl diphosphate | - |
Citrus limon | (-)-beta-pinene + diphosphate | products are beta-pinene (81.4%, almost exclusively (-)-beta-pinene), sabinene (11%), alpha-pinene (4.1%), limonene (3.5%) and a trace of gamma-terpinene | ? |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
4.2.3.20 | 7 | - |
- |
Citrus limon |