ID 5.4.99.39 DE beta-amyrin synthase. AN 2,3-oxidosqualene beta-amyrin cyclase. CA (S)-2,3-epoxysqualene = beta-amyrin. CC -!- Some organism possess a monofunctional beta-amyrin synthase, other CC have a multifunctional enzyme that also catalyzes the synthesis of CC alpha-amyrin (EC 5.4.99.40) or lupeol (EC 5.4.99.41). CC -!- Formerly EC 5.4.99.n1. DR Q9LRH7, ABAMS_PEA ; A0A0U2U4F3, BAMS1_BARVU; O82140, BAMS1_PANGI; DR O82146, BAMS2_PANGI; Q8W3Z1, BAMS_BETPL ; Q9MB42, BAMS_GLYGL ; DR Q9LRH8, BAMS_PEA ; E7DN63, BAMS_SOLLC ; A0A0S2IHL6, BASM1_KALSE; DR A8CDT2, BAS_BRUGY ; E7DN64, DAMS_SOLLC ; Q9C5M3, LUP1_ARATH ; DR Q8RWT0, LUP2_ARATH ; B6EXY6, LUP4_ARATH ; //