ExplorEnz: EC 4.2.3.222

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4.2.3.222

Accepted name:

phomopsene synthase

Reaction:

geranylgeranyl diphosphate = phomopsene + diphosphate

Glossary:

phomopsene = (1S,6aS,6bR,9aR,10aS)-1,4,7,7,9a-pentamethyl-1,2,3,5,6,6a,6b,7,8,9,9a,10-dodecahydrodicyclopenta[a,d]indene

Other name(s):

PaPS; NtPS; NrPS; PmS

Systematic name:

geranylgeranyl-diphosphate diphosphate-lyase (cyclizing, phomopsene-formimg)

Comments:

A diterpene synthase from the fungus Diaporthe amygdali. Phomopsene synthase has also been isolated from the bacteria Nocardia testacea, Nocardia rhamnosiphila, and Allokutzneria albata. The Allokutzneria albata enzyme also generates allokutznerene (EC 4.2.3.224, allokutznerene synthase), bonnadiene (EC 4.2.3.223, bonnadiene synthase) and traces of (–)-spiroviolene (EC 4.2.3.158, (–)-spiroviolene synthase).

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Toyomasu, T., Kaneko, A., Tokiwano, T., Kanno, Y., Kanno, Y., Niida, R., Miura, S., Nishioka, T., Ikeda, C., Mitsuhashi, W., Dairi, T., Kawano, T., Oikawa, H., Kato, N. and Sassa, T. Biosynthetic gene-based secondary metabolite screening: a new diterpene, methyl phomopsenonate, from the fungus Phomopsis amygdali. J. Org. Chem. 74 (2009) 1541–1548. [DOI] [PMID: 19161275]
2.	Shinde, S.S., Minami, A., Chen, Z., Tokiwano, T., Toyomasu, T., Kato, N., Sassa, T. and Oikawa, H. Cyclization mechanism of phomopsene synthase: mass spectrometry based analysis of various site-specifically labeled terpenes. J. Antibiot. (Tokyo) 70 (2017) 632–638. [DOI] [PMID: 28270685]
3.	Lauterbach, L., Rinkel, J. and Dickschat, J.S. Two bacterial diterpene synthases from Allokutzneria albata produce bonnadiene, phomopsene, and allokutznerene. Angew. Chem. Int. Ed. Engl. 57 (2018) 8280–8283. [DOI] [PMID: 29758116]
4.	Rinkel, J., Steiner, S.T. and Dickschat, J.S. Diterpene biosynthesis in actinomycetes: studies on cattleyene synthase and phomopsene synthase. Angew. Chem. Int. Ed. Engl. 58 (2019) 9230–9233. [DOI] [PMID: 31034729]

[EC 4.2.3.222 created 2024]