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EC 5.5.1.20 Details

show Brenda entry

EC number

5.5.1.20

Accepted name

prosolanapyrone-III cycloisomerase

Reaction

prosolanapyrone III = (–)-solanapyrone A

Other name(s)

Sol5 (ambiguous), SPS (ambiguous), solanapyrone synthase (bifunctional enzyme: prosolanapyrone II oxidase/prosolanapyrone III cyclosiomerase)

Systematic name

prosolanapyrone-III:(–)-solanapyrone A isomerase

Comment

The enzyme is involved in the biosynthesis of the phytotoxin solanapyrone in some fungi. The bifunctional enzyme catalyses the oxidation of prosolanapyrone II and the subsequent Diels Alder cycloisomerization of the product prosolanapyrone III to (–)-solanapyrone A (cf. EC 1.1.3.42, prosolanapyrone II oxidase).

History

created 2011

EC Tree

5.1 Racemases and epimerases

5.2 cis-trans-Isomerases

5.3 Intramolecular oxidoreductases

5.4 Intramolecular transferases

5.5 Intramolecular lyases

5.5.1 Intramolecular lyases (only sub-subclass identified to date)

5.5.1.1 muconate cycloisomerase

5.5.1.2 3-carboxy-cis,cis-muconate cycloisomerase

5.5.1.3 tetrahydroxypteridine cycloisomerase

5.5.1.4 inositol-3-phosphate synthase

5.5.1.5 carboxy-cis,cis-muconate cyclase

5.5.1.6 chalcone isomerase

5.5.1.7 chloromuconate cycloisomerase

5.5.1.8 (+)-bornyl diphosphate synthase

5.5.1.9 cycloeucalenol cycloisomerase

5.5.1.10 α-pinene-oxide decyclase

5.5.1.11 dichloromuconate cycloisomerase

5.5.1.12 copalyl diphosphate synthase

5.5.1.13 ent-copalyl diphosphate synthase

5.5.1.14 syn-copalyl-diphosphate synthase

5.5.1.15 terpentedienyl-diphosphate synthase

5.5.1.16 halimadienyl-diphosphate synthase

5.5.1.17 (S)-β-macrocarpene synthase

5.5.1.18 lycopene ε-cyclase

5.5.1.19 lycopene β-cyclase

5.5.1.20 prosolanapyrone-III cycloisomerase

5.5.1.21 copal-8-ol diphosphate synthase

5.5.1.22 (–)-bornyl diphosphate synthase

5.5.1.23 aklanonic acid methyl ester cyclase

5.5.1.24 tocopherol cyclase

5.5.1.25 3,6-anhydro-L-galactonate cycloisomerase

5.5.1.26 nogalonic acid methyl ester cyclase

5.5.1.27 D-galactarolactone cycloisomerase

5.5.1.28 (–)-kolavenyl diphosphate synthase

5.5.1.29 (+)-kolavenyl diphosphate synthase

5.5.1.30 labda-7,13-dienyl diphosphate synthase

5.5.1.31 hapalindole H synthase

5.5.1.32 12-epi-hapalindole U synthase

5.5.1.33 12-epi-fischerindole U synthase

5.5.1.34 (+)-cis,trans-nepetalactol synthase

5.5.1.35 (+)-cis,cis-nepetalactol synthase

5.6 Isomerases altering macromolecular conformation

5.99 Other isomerases

6 Ligases

7 Translocases