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Literature summary for 2.3.1.15 extracted from

  • Pellon-Maison, M.; Garcia, C.F.; Cattaneo, E.R.; Coleman, R.A.; Gonzalez-Baro, M.R.
    Macrobrachium borellii hepatopancreas contains a mitochondrial glycerol-3-phosphate acyltransferase which initiates triacylglycerol biosynthesis (2009), Lipids, 44, 337-344.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
Polymyxin B
-
Macrobrachium borellii

General Stability

General Stability Organism
since enzyme is unstable after long freezing periods, all experiments are performed within two weeks of fractionation Macrobrachium borellii

Inhibitors

Inhibitors Comment Organism Structure
palmitoleoyl-CoA shows substrate inhibition, therfore Km value is not determined Macrobrachium borellii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0312
-
oleoyl-CoA Vmax value calculated with oleoyl-CoA as a substrate is 4fold lower than the value obtained with palmitoyl-CoA Macrobrachium borellii

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrion higly active in mitochondria Macrobrachium borellii 5739
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
70000
-
SDS-PAGE Macrobrachium borellii

Organism

Organism UniProt Comment Textmining
Macrobrachium borellii
-
-
-

Purification (Commentary)

Purification (Comment) Organism
enzyme is isolated using subcellular fractions Macrobrachium borellii

Source Tissue

Source Tissue Comment Organism Textmining
hepatopancreas in hepatopancreas mitochondria, a GPAT activity with characteristics similar to those of mammalian GPAT1 is identified Macrobrachium borellii
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.000023
-
specific activity in total homogenate Macrobrachium borellii
0.0000342
-
specific activity in microsomes Macrobrachium borellii
0.000322
-
specific activity in mitochondria Macrobrachium borellii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
oleoyl-CoA + sn-glycerol 3-phosphate
-
Macrobrachium borellii CoA + 1-oleoyl-sn-glycerol 3-phosphate
-
?
palmitoyl-CoA + sn-glycerol 3-phosphate preferred substrate is palmitoyl-CoA Macrobrachium borellii CoA + 1-palmitoleoyl-sn-glycerol 3-phosphate
-
?

Synonyms

Synonyms Comment Organism
glycerol-3-phosphate acyltransferase
-
Macrobrachium borellii
GPAT
-
Macrobrachium borellii

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Macrobrachium borellii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4
-
assay at Macrobrachium borellii