Botryococcene C-methyltransferase

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Botryococcene C-methyltransferase
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EC no. 2.1.1.263
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Botryococcene C-methyltransferase (EC 2.1.1.263, TMT-3) is an enzyme with systematic name S-adenosyl-L-methionine:botryococcene C-methyltransferase. [1]

Contents

Function

This enzyme catalyses the following chemical reaction:

2 S-adenosyl-L-methionine + C30 botryococcene 2 S-adenosyl-L-homocysteine + 3,20-dimethyl-1,2,21,22-tetradehydro-2,3,20,21-tetrahydrobotryococcene (overall reaction)
(1a) S-adenosyl-L-methionine + C30 botryococcene S-adenosyl-L-homocysteine + 3-methyl-1,2-didehydro-2,3-dihydrobotryococcene
(1b) S-adenosyl-L-methionine + 3-methyl-1,2-didehydro-2,3-dihydrobotryococcene S-adenosyl-L-homocysteine + 3,20-dimethyl-1,2,21,22-tetradehydro-2,3,20,21-tetrahydrobotryococcene
(2a) S-adenosyl-L-methionine + C30 botryococcene S-adenosyl-L-homocysteine + 20-methyl-21,22-didehydro-20,21-dihydrobotryococcene
(2b) S-adenosyl-L-methionine + 20-methyl-21,22-didehydro-20,21-dihydrobotryococcene S-adenosyl-L-homocysteine + 3,20-dimethyl-1,2,21,22-tetradehydro-2,3,20,21-tetrahydrobotryococcene

This enzyme is isolated from the green alga Botryococcus braunii BOT22.

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References

  1. ↑ Niehaus TD, Kinison S, Okada S, Yeo YS, Bell SA, Cui P, Devarenne TP, Chappell J (March 2012). "Functional identification of triterpene methyltransferases from Botryococcus braunii race B". The Journal of Biological Chemistry. 287 (11): 8163–73. doi: 10.1074/jbc.m111.316059 . PMC   3318757 . PMID   22241476.
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