5. Isomerizations of C40 beta,psi carotenoid
        Cyclization from psi to epsilon
            Reaction center(s): C1 and C6 in beta,psi carotenoid

beta,psi  ->  beta,epsilon
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psi'  ->  epsilon'

psi'  ->  epsilon(Down)'

Marchantia polymorpha

Ref.596 : Miho Takemura1, Takashi Maoka, and Norihiko Misawa, Plant Cell Physiol. 55(1): 194–200 (2014) doi:10.1093/pcp/pct170, "Carotenoid Analysis of a Liverwort Marchantia polymorpha and Functional Identification of its Lycopene b- and e-Cyclase Genes"

KEGG ENZYME: 5.5.1.18
BRENDA: 5.5.1.18
IUBMB: 5.5.1.18