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EC Tree
The enzyme appears in viruses and cellular organisms
Synonyms
IMTI, inositol 3-O-methyltransferase, inositol D-1-methyltransferase, inositol methyl transferase, methyltransferase, inositol, D-1-, myo-inositol 3-O-methyltransferase, S-adenosyl-L-methionine:1D-myo-inositol 3-O-methyltransferase, S-adenosylmethionine:myo-inositol 3-methyltransferase, S-adenosylmethionine:myo-inositol 3-O-methyltransferase,
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inositol 3-O-methyltransferase
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inositol D-1-methyltransferase
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inositol methyl transferase
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methyltransferase, inositol, D-1-
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myo-inositol 3-O-methyltransferase
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S-adenosyl-L-methionine:1D-myo-inositol 3-O-methyltransferase
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S-adenosylmethionine:myo-inositol 3-methyltransferase
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S-adenosylmethionine:myo-inositol 3-O-methyltransferase
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S-adenosyl-L-methionine + myo-inositol = S-adenosyl-L-homocysteine + 1D-1-O-methyl-myo-inositol
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methyl group transfer
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S-adenosyl-L-methionine:1D-myo-inositol 1-O-methyltransferase
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D-bornesitol + S-adenosyl-L-methionine
1,3-di-O-methyl-myo-inositol + S-adenosyl-L-homocysteine
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low reaction rate
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D-chiro-inositol + S-adenosyl-L-methionine
quebrachitol + S-adenosyl-L-homocysteine
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L-bornesitol + S-adenosyl-L-methionine
1,3-di-O-methyl-myo-inositol + S-adenosyl-L-homocysteine
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low reaction rate
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L-chiro-inositol + S-adenosyl-L-methionine
quebrachitol + pinitol + S-adenosyl-L-homocysteine
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S-adenosyl-L-methionine + myo-inositol
S-adenosyl-L-homocysteine + D-bornesitol
scyllo-inositol + S-adenosyl-L-methionine
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low reaction rate
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S-adenosyl-L-methionine + myo-inositol
S-adenosyl-L-homocysteine + D-bornesitol
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S-adenosyl-L-methionine + myo-inositol
S-adenosyl-L-homocysteine + D-bornesitol
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S-adenosyl-L-methionine + myo-inositol
S-adenosyl-L-homocysteine + D-bornesitol
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biosynthesis of cyclitols
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S-adenosyl-L-methionine + myo-inositol
S-adenosyl-L-homocysteine + D-bornesitol
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biosynthesis of cyclitols
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p-chloromercuribenzoate
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2.5 - 3.2
S-adenosyl-L-methionine
2.3
myo-inositol
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2.5
S-adenosyl-L-methionine
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3.2
S-adenosyl-L-methionine
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6.7 - 7.6
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about 50% of activity maximum at pH 6.7 and 7.6
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brenda
pea
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brenda
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brenda
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brenda
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brenda
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physiological function
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transgenic tobacco plants co-expressing INO1 and IMT1 gene either in cytosol or in chloroplasts accumulate higher amount of total inositol (free and methyl inositol) compared to nontransgenic plants. These plants are more competent in terms of growth potential and photosynthetic activity and are less prone to oxidative stress under salt stress
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42000
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gel filtration, PAGE
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monomer
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1 * 42000, SDS-PAGE
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3
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24 h, 40% loss of activity
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glutathione stabilizes slightly
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expressed in Nicotiana tabacum
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Wagner, I.; Hofmann, H.; Hoffmann-Ostenhof, O.
Biosynthesis of cyclitols. 23. A soluble enzyme from pea seedlings methylating myo-inositol to D-bornesitol
Hoppe-Seyler's Z. Physiol. Chem.
350
1460-1464
1969
Pisum sativum
brenda
Koller, F.; Hoffmann-Ostenhof, O.
Studies on the biosynthesis of cyclitols, XXXIV[l] Purification of myo-inositol 3-methyltransferase from Pisum sativum and of myo-inositol 1-methyltransferase from Vinca minor to homogeneity by affinity chromatography
Hoppe-Seyler's Z. Physiol. Chem.
357
1465-1468
1976
Pisum sativum
brenda
Vernon, D.M.; Bohnert, H.J.
Increased expression of a myo-inositol methyl transferase in Mesembryanthemum crystallinum is part of a stress response distinct from Crassulacean acid metabolism induction
Plant Physiol.
99
1695-1698
1992
Mesembryanthemum crystallinum
brenda
Patra, B.; Ray, S.; Richter, A.; Majumder, A.L.
Enhanced salt tolerance of transgenic tobacco plants by co-expression of PcINO1 and McIMT1 is accompanied by increased level of myo-inositol and methylated inositol
Protoplasma
245
143-152
2010
Mesembryanthemum crystallinum
brenda
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