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5.4.99.39: beta-amyrin synthase

This is an abbreviated version!
For detailed information about beta-amyrin synthase, go to the full flat file.

Word Map on EC 5.4.99.39

Reaction

(3S)-2,3-epoxy-2,3-dihydrosqualene
=
beta-amyrin

Synonyms

AMS1, amyrin synthase, B-AS, bAS, BAS-like 2, BAS1, BAS2, beta-amyrin cyclase, beta-amyrin synthase, beta-AS, betaAS, BPY, CbbAS, CrAS, EsBAS, EtAS, GmAMS1, GsAS1, GsAS2, MdOSC1, MtAMY1, multifunctional OSC, ObAS1, OPSC 1, OSC, OSC1, OSC2, OXA1, Oxidosqualene cyclase, PBA, PlgOSC1, PNY, PSY, PtBS, SITTS1, SlTTS1, SvBS

ECTree

     5 Isomerases
         5.4 Intramolecular transferases
             5.4.99 Transferring other groups
                5.4.99.39 beta-amyrin synthase

Expression

Expression on EC 5.4.99.39 - beta-amyrin synthase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
after 24 h of elicitation, beta-amyrin synthase transcripts are increased at 0.1, 1, and 2 mM of methyl jasmonate, and they are increased at 0.1 and 1 mM salicylic acid
CrAS is preferentially expressed in leaf epidermis, in younger leaves and during the earlier stages of seedling development in Catharanthus roseus
-
GsAS1 transcription is 9.8fold induced by methyl jasmonate (MeJA) treatment with increased oleanolic acid content, while salicylic acid has no effect
GsAS2 transcription is 12.2fold induced by methyl jasmonate (MeJA) treatment with increased oleanolic acid content, while salicylic acid has no effect
highest expression in roots
-
RNAi-directed suppression of GsAS1 in Gentiana straminea decreases oleonolic acid levels by 65.9%
RNAi-directed suppression of GsAS2 in Gentiana straminea decreases oleonolic acid levels by 21.0%
the enzyme is induced by methyl jasmonate (MeJA). The transcription of EsBAS is clearly enhanced at 12 and 24 h after MeJA treatment and reduced to the level of the control (without MeJA treatment) at 72 h after MeJA treatment
the enzyme is inducible by methyl jasmonate by 50fold in cell suspension cultures
-
the transcription of gene CbbAS is upregulated 4-24 h after treatment of seedlings with methyl jasmonate
the treatment with 0.1 mM methyl jasmonate yields greater accumulation of beta-amyrin as well as B-AS activity