2.4.1.82: galactinol-sucrose galactosyltransferase
This is an abbreviated version!
For detailed information about galactinol-sucrose galactosyltransferase, go to the full flat file.
Word Map on EC 2.4.1.82
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2.4.1.82
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oligosaccharide
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stachyose
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verbascose
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monogastric
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agriculture
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cold-responsive
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antinutritional
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synthesis
- 2.4.1.82
- oligosaccharide
- stachyose
- verbascose
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monogastric
- agriculture
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cold-responsive
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antinutritional
- synthesis
Reaction
Synonyms
alkaline alpha galactosidase 1, At4g01970, galactinol:sucrose 6-galactosyl transferase, galactosyltransferase, galactinol-sucrose, More, raffinose synthase, raffinose synthase 1, raffinose synthase 2, raffinose synthase 3, raffinose synthase 4, raffinose synthase 5, raffinose synthase 6, RafS, RFO synthase/galactosylhydrolase, RFS4, RFS5, RS1, RS2, RS3, RS4, RS5, RS6, ZmRAFS
ECTree
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Substrates Products
Substrates Products on EC 2.4.1.82 - galactinol-sucrose galactosyltransferase
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REACTION DIAGRAM
1-alpha-D-galactosyl-myo-inositol + D-ononitol
myo-inositol + alpha-D-galactosyl-D-ononitol
D-ononitol is 1-D-4-O-methyl-myo-inositol
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r
1-alpha-D-galactosyl-myo-inositol + D-pinitol
myo-inositol + galactopinitol A
D-pinitol is 1-D-3-O-methyl-chiro-inositol
i.e. O-alpha-D-galactopyranosyl-(1,2)-4-O-methyl-D-chiro-inositol
r
alpha-D-galactosyl-D-ononitol + sucrose
D-ononitol + raffinose
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?
myo-inositol + D-galactose
hydrolysis, in the absence of acceptor substrate
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?
1-alpha-D-galactosyl-myo-inositol + H2O
myo-inositol + D-galactose
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hydrolysis, in the absence of acceptor substrate
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?
myo-inositol + raffinose
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r
1-alpha-D-galactosyl-myo-inositol + sucrose
myo-inositol + raffinose
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r
1-alpha-D-galactosyl-myo-inositol + sucrose
myo-inositol + raffinose
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r
1-alpha-D-galactosyl-myo-inositol + sucrose
myo-inositol + raffinose
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r
1-alpha-D-galactosyl-myo-inositol + sucrose
myo-inositol + raffinose
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first step in biosynthesis of raffinose sugars
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?
4-nitrophenol + raffinose
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r
4-nitrophenol-alpha-D-galactopyranoside + sucrose
4-nitrophenol + raffinose
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?
4-nitrophenol-alpha-D-galactopyranoside + sucrose
4-nitrophenol + raffinose
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?
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose
myo-inositol + raffinose
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?
myo-inositol + raffinose
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ir
1-alpha-D-galactosyl-1D-myo-inositol + sucrose
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r
myo-inositol + raffinose
1-alpha-D-galactosyl-1D-myo-inositol + sucrose
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r
myo-inositol + raffinose
1-alpha-D-galactosyl-1D-myo-inositol + sucrose
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r
?
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the multifunctional enzyme is a raffinose and high affinity stachyose synthase, EC 2.4.1.82 and EC 2.4.1.67, as well as stachyose and galactinol specific galactosylhydrolase
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?
additional information
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the multifunctional enzyme is a raffinose and high affinity stachyose synthase, EC 2.4.1.82 and EC 2.4.1.67, as well as stachyose and galactinol specific galactosylhydrolase
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?
additional information
?
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the multifunctional enzyme is a raffinose and high affinity stachyose synthase, EC 2.4.1.82 and EC 2.4.1.67, as well as stachyose and galactinol specific galactosylhydrolase
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?
additional information
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catalysis best fits to a Ping-Pong Bi-Bi mechanism. The reaction is reversible, the forward reactions synthesizing raffinose approach equilibrium after 4 h, and the Keq is calculated to be 4.46
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