ID   5.5.1.19
DE   lycopene beta-cyclase.
CA   a carotenoid psi-end group = a carotenoid beta-end derivative.
CC   -!- Lycopene has a psi-end group at both ends.
CC   -!- When acting on one end, this enzyme forms gamma-carotene.
CC   -!- When acting on both ends it forms beta-carotene.
CC   -!- It also acts on neurosporene to give beta-zeacarotene.
CC   -!- Formerly EC 5.5.1.n2.
DR   B0R753, CRTY_HALS3 ;  Q9HNE5, CRTY_HALSA ;  P21687, CRTY_PANAN ;
DR   P54974, CRTY_PARSN ;  Q01331, CRTY_PSEVU ;  E4UPP6, LCPS_ARTGP ;
DR   A2QM49, LCPS_ASPNC ;  Q2U4X9, LCPS_ASPOR ;  Q67GH9, LCPS_BLATR ;
DR   E3Q717, LCPS_COLGM ;  S0EQ07, LCPS_GIBF5 ;  Q8X0Z1, LCPS_GIBFU ;
DR   E4ZUB5, LCPS_LEPMJ ;  Q9UUQ6, LCPS_MUCCL ;  P37295, LCPS_NEUCR ;
DR   Q0V6M5, LCPS_PHANO ;  Q7Z859, LCPS_PHARH ;  Q9P854, LCPS_PHYB8 ;
DR   B2ATB0, LCPS_PODAN ;  B2WAQ3, LCPS_PYRTR ;  D1Z4K7, LCPS_SORMK ;
DR   E6ZZ11, LCPS_SPORE ;  D4D802, LCPS_TRIVH ;  Q4P0S6, LCPS_USTMA ;
DR   Q38933, LCYB_ARATH ;  Q43415, LCYB_CAPAN ;  Q40424, LCYB_NARPS ;
DR   D9IL23, LCYB_ONCHC ;  Q43503, LCYB_SOLLC ;  Q55276, LCYB_SYNE7 ;
DR   Q43578, LCYB_TOBAC ;  K4C9E2, NSY_SOLLC  ;
//