2.1.1.143: 24-methylenesterol C-methyltransferase
This is an abbreviated version!
For detailed information about 24-methylenesterol C-methyltransferase, go to the full flat file.
Word Map on EC 2.1.1.143
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2.1.1.143
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ergosterol
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zymosterol
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azasterols
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flagellate
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tomatine
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amphotericin
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phytosterols
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glycoalkaloid
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24-alkylated
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lanosterol
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phytomonas
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vacuolisation
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epoxidase
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serpens
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24-ethyl
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permeabilisation
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serrated
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stigmasterol
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trypanosomatidae
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sitosterol
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parasitise
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carbocation
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biotechnology
- 2.1.1.143
- ergosterol
- zymosterol
- azasterols
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flagellate
- tomatine
- amphotericin
- phytosterols
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glycoalkaloid
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24-alkylated
- lanosterol
- phytomonas
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vacuolisation
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epoxidase
- serpens
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24-ethyl
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permeabilisation
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serrated
- stigmasterol
- trypanosomatidae
- sitosterol
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parasitise
-
carbocation
- biotechnology
Reaction
Synonyms
(S)-adenosyl-L-methionine-DELTA24-sterol methyltransferase, (S)-adenosyl-L-methionine:DELTA24(25)-sterol methyltransferase, 24-methylenelophenol C-241-methyltransferase, 24-sterol methyltransferase, C-24 SMT, C24-SMT2, DELTA24(25)-sterol methyltransferase, DELTA24-methyltransferase, DELTA24-sterol methyltransferase, methyltransferase, DELTA24-sterol, S-adenosylmethionine:DELTA24-sterol methyltransferase, SAM-DELTA24 sterol transmethylase, SMT1, SMT2, SMT2-1, sterol 24C-methyltransferase, sterol methyl transferase 2, sterol methyltransferase, sterol methyltransferase 2, zymosterol-24-methyltransferase
ECTree
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Substrates Products
Substrates Products on EC 2.1.1.143 - 24-methylenesterol C-methyltransferase
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REACTION DIAGRAM
S-adenosyl-L-methionine + 24(28)-methylene cycloartenol
S-adenosyl-L-homocysteine + 24(28)-ethylidene cycloartenol
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?
S-adenosyl-L-methionine + 24(28)-methylene lophenol
S-adenosyl-L-homocysteine + 24(28)-ethylidene lophenol
S-adenosyl-L-methionine + 24-methylene-cholesta-5,7-dien-3beta-ol
S-adenosyl-L-homocysteine + cholesta-8,24-dien-3beta-ol
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + (Z)-24-ethylidenelophenol
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + 24-ethylidenelophenol
S-adenosyl-L-methionine + 4alpha-methyl zymosterol
S-adenosyl-L-homocysteine + ?
60% of the effectiveness of 24(28)-methylene lophenol
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?
S-adenosyl-L-methionine + cycloartenol
S-adenosyl-L-homocysteine + 24-methylenecycloartanol
S-adenosyl-L-methionine + cycloartenol
S-adenosyl-L-homocysteine + cyclolaudenol + 24(28)-methylene cycloartanol
reaction of EC 2.1.1.142
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?
S-adenosyl-L-methionine + ergosta-7,24(28)-dienol
S-adenosyl-L-homocysteine + ?
equally effective as 24(28)-methylene lophenol
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?
S-adenosyl-L-methionine + fecosterol
S-adenosyl-L-homocysteine + ?
equally effective as 24(28)-methylene lophenol
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?
S-adenosyl-L-methionine + lanosterol
S-adenosyl-L-homocysteine + 24beta-methyl lanosta-8,25(27)-enol + 24(28)-methylene lanosterol
reaction of EC 2.1.1.142
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?
S-adenosyl-L-methionine + lanosterol
S-adenosyl-L-homocysteine + ?
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12.4% of the activity with 24-methylenelophenol
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?
S-adenosyl-L-methionine + zymosterol
S-adenosyl-L-homocysteine + ?
70% of the effectiveness of 24(28)-methylene lophenol
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?
S-adenosyl-L-methionine + zymosterol
S-adenosyl-L-homocysteine + fecosterol
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?
S-adenosyl-L-methionine + zymosterol
S-adenosyl-L-homocysteine + fecosterol + episterol + stigmasta-8,24-dienol + DELTA7-avenasterol
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5.2% of the activity with 24-methylenelophenol
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?
additional information
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enzyme catalyzes both the reactions of EC 2.1.1.142, cycloartenol 24-C-methyltransferase and EC 2.1.1.143, 24-methylenesterol C-methyltransferase. SMT1 catalyzes a sterol methylation pathway by the algal Delta25(27)-olefin route, where methylation proceeds by a conserved SN2 reaction and deprotonation proceeds from the pro-Z methyl group on lanosterol corresponding to C27
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S-adenosyl-L-homocysteine + 24(28)-ethylidene lophenol
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?
S-adenosyl-L-methionine + 24(28)-methylene lophenol
S-adenosyl-L-homocysteine + 24(28)-ethylidene lophenol
best substrate
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?
S-adenosyl-L-homocysteine + cholesta-8,24-dien-3beta-ol
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?
S-adenosyl-L-methionine + 24-methylene-cholesta-5,7-dien-3beta-ol
S-adenosyl-L-homocysteine + cholesta-8,24-dien-3beta-ol
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?
S-adenosyl-L-homocysteine + (Z)-24-ethylidenelophenol
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?
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + (Z)-24-ethylidenelophenol
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?
S-adenosyl-L-homocysteine + 24-ethylidenelophenol
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?
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + 24-ethylidenelophenol
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second methylation step of plant sterol biosynthesis
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?
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + 24-ethylidenelophenol
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second methylation step of plant sterol biosynthesis
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?
S-adenosyl-L-methionine + 24-methylenelophenol
S-adenosyl-L-homocysteine + 24-ethylidenelophenol
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second methylation step of plant sterol biosynthesis
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?
S-adenosyl-L-homocysteine + 24-methylenecycloartanol
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6% of the activity with 24-methylenelophenol
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?
S-adenosyl-L-methionine + cycloartenol
S-adenosyl-L-homocysteine + 24-methylenecycloartanol
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?
S-adenosyl-L-methionine + cycloartenol
S-adenosyl-L-homocysteine + 24-methylenecycloartanol
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?
S-adenosyl-L-homocysteine + ?
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11.9% of the activity with 24-methylenelophenol
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?
S-adenosyl-L-methionine + obtusifoliol
S-adenosyl-L-homocysteine + ?
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?