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Information on EC 2.4.1.137 - sn-glycerol-3-phosphate 2-alpha-galactosyltransferase
for references in articles please use BRENDA:EC2.4.1.137
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EC Tree 2 Transferases
2.4 Glycosyltransferases
2.4.1 Hexosyltransferases
2.4.1.137 sn-glycerol-3-phosphate 2-alpha-galactosyltransferase
IUBMB Comments
The product is hydrolysed by a phosphatase to floridoside (cf. EC 2.4.1.96 sn-glycerol-3-phosphate 1-galactosyltransferase).
The enzyme appears in viruses and cellular organisms
Reaction Schemes
showSynonyms
floridoside phosphate synthase, floridoside phosphate synthase/phosphatase fusion protein, floridoside-phosphate synthase, FPS, synthetase, floridoside phosphate, UDP-galactose, sn-3-glycerol phosphate:1-2' galactosyltransferase, UDP-galactose:sn-glycerol-3-phosphate-2-D-galactosyl transferase, more
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
floridoside phosphate synthase
floridoside phosphate synthase/phosphatase fusion protein
floridoside-phosphate synthase
-
-
-
-
FPS
-
-
-
-
synthetase, floridoside phosphate
-
-
-
-
UDP-galactose, sn-3-glycerol phosphate:1-2' galactosyltransferase
-
-
-
-
UDP-galactose:sn-glycerol-3-phosphate-2-D-galactosyl transferase
-
-
-
-
floridoside phosphate synthase
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-
-
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
UDP-alpha-D-galactose + sn-glycerol 3-phosphate = UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
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-
-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hexosyl group transfer
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-
-
-
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SYSTEMATIC NAME
IUBMB Comments
UDP-galactose:sn-glycerol-3-phosphate 2-alpha-D-galactosyltransferase
The product is hydrolysed by a phosphatase to floridoside (cf. EC 2.4.1.96 sn-glycerol-3-phosphate 1-galactosyltransferase).
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CAS REGISTRY NUMBER
COMMENTARY
80747-34-8
-
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
LITERATURE
COMMENTARY
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
UDP-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: the enzyme is involved in synthesis and degradation of floridoside. Decrease in enzyme activity during nutrient limitation. Addition of nutrients causes an increase in enzyme activity and a decrease in the content of starch and floridoside
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: -
Products: -
?
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
Lomentaria umbellata
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
Lomentaria umbellata
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: the product is hydrolyzed by a phosphatase to floridoside
Products: the product is hydrolyzed by a phosphatase to floridoside
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: high substrate specificity
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: key enzyme in floridoside biosynthesis
Products: -
Products: -
?
additional information
?
-
-
Substrates: metabolite analysis by mass spectrometry
Products: -
Products: -
?
additional information
?
-
-
Substrates: metabolite analysis by mass spectrometry
Products: -
Products: -
?
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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
LITERATURE
COMMENTARY
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
UDP-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: the enzyme is involved in synthesis and degradation of floridoside. Decrease in enzyme activity during nutrient limitation. Addition of nutrients causes an increase in enzyme activity and a decrease in the content of starch and floridoside
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: -
Products: -
?
UDP-alpha-D-galactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: -
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
Lomentaria umbellata
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: involved in biosynthesis of floridoside, a typical low-molecular weight red algal carbohydrate
Products: -
Products: -
?
UDPgalactose + sn-glycerol 3-phosphate
UDP + 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate
-
Substrates: key enzyme in floridoside biosynthesis
Products: -
Products: -
?
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COFACTOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
7.5
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TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
20
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ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
additional information
additional information
-
cells are grown in basal medium containing 25mM glucose as sole carbon source
brenda
additional information
-
cells are grown in basal medium containing 25mM glucose as sole carbon source
-
brenda
Highest Expressing Human Cell Lines
Cell Line LinksPlease wait a moment until the data is sorted. This message will disappear when the data is sorted.
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
physiological function
physiological function
-
key enzyme floridoside phosphate synthase catalyzes the formation of floridoside phosphate from glycerol-3-phosphate and UDP-galactose. The intermediate is dephosphorylated by the floridoside phosphate phosphatase reaction to yield floridoside
physiological function
-
key enzyme floridoside phosphate synthase catalyzes the formation of floridoside phosphate from glycerol-3-phosphate and UDP-galactose. The intermediate is dephosphorylated by the floridoside phosphate phosphatase reaction to yield floridoside
-
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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
gene Gasu_10960, DNA and amino acid sequence determination and analysis, phylogenetic analysis and tree. Complementation of a salt-sensitive, glucosylglycerol-defective mutant of Synechocystis sp. PCC 6803 with Gasu_10960
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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Kremer, B.P.; Kirst, G.O.
Biosynthesis of 2-O-D-glycerol-alpha-D-galactopyranoside (floridoside) in marine Rhodophyceae
Plant Sci. Lett.
23
349-357
1981
Catenella nipae, Catenella nipae Zan., Chondrus crispus, Chondrus crispus Stackh., Corallina officinalis, Cystoclonium purpureum, Dumontia incrassata, Lomentaria umbellata, Porphyra umbilicalis
-
brenda
Meng, J.; Srivastava, L.M.
Partial purification and characterization of floridoside phosphate synthase from Porphyra perforata
Phytochemistry
30
1763-1766
1991
Pyropia perforata
-
brenda
Collen, P.N.; Camitz, A.; Hancock, R.D.; Viola, R.; Pedersen, M.
Effect of nutrient deprivation and resupply on metabolites and enzymes related to carbon allocation in Gracilaria tenuistipitata (Rhodophyta)
J. Phycol.
40
305-314
2004
Gracilaria tenuistipitata
-
brenda
Pade, N.; Linka, N.; Ruth, W.; Weber, A.P.; Hagemann, M.
Floridoside and isofloridoside are synthesized by trehalose 6-phosphate synthase-like enzymes in the red alga Galdieria sulphuraria
New Phytol.
205
1227-1238
2015
Galdieria sulphuraria, Galdieria sulphuraria 074G
brenda
EXTERNAL LINKS (specific for EC-Number 2.4.1.137)
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