The enzyme is involved in biosynthesis of 2-O-(α-D-glucopyranosyl)-D-glycerate via the two-step pathway in which EC 2.4.1.266 (glucosyl-3-phosphoglycerate synthase) catalyses the conversion of GDP-glucose and 3-phospho-D-glycerate into 2-O-(α-D-glucopyranosyl)-3-phospho-D-glycerate, which is then converted to 2-O-(α-D-glucopyranosyl)-D-glycerate by glucosyl-3-phosphoglycerate phosphatase. In vivo the enzyme catalyses the dephosphorylation of 2-O-(α-D-mannopyranosyl)-3-phospho-D-glycerate with lower efficiency [1,2]. Divalent metal ions (Mg2+, Mn2+ or Co2+) stimulate activity [1,2].
The expected taxonomic range for this enzyme is: Bacteria, Archaea
The enzyme is involved in biosynthesis of 2-O-(alpha-D-glucopyranosyl)-D-glycerate via the two-step pathway in which EC 2.4.1.266 (glucosyl-3-phosphoglycerate synthase) catalyses the conversion of GDP-glucose and 3-phospho-D-glycerate into 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate, which is then converted to 2-O-(alpha-D-glucopyranosyl)-D-glycerate by glucosyl-3-phosphoglycerate phosphatase. In vivo the enzyme catalyses the dephosphorylation of 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate with lower efficiency [1,2]. Divalent metal ions (Mg2+, Mn2+ or Co2+) stimulate activity [1,2].
Substrates: in Persephonella marina two pathways for synthesis of glucosylglycerate are present: 1. the single-step pathway in with glucosylglycerate synthase (Ggs) catalyzes the synthesis of 2-O-(alpha-D-glucopyranosyl)-D-glycerate in one-step from ADP-glucose and D-glycerate, and 2. the two-step pathway in which glucosyl-3-phosphoglycerate synthase (GpgS) catalyzes the conversion of NDP-glucose and D-3-phosphoglycerate into glucosyl-3-phosphoglycerate, which is then converted to 2-O-(alpha-D-glucopyranosyl)-D-glycerate by glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
Substrates: synthesis of the solute glucosylglycerate proceeds via a two-step pathway involving glucosyl-3-phosphoglycerate synthase (GpgS) and glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is 6-7fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate, depending on assay temperature Products: -
Substrates: synthesis of the solute glucosylglycerate proceeds via a two-step pathway involving glucosyl-3-phosphoglycerate synthase (GpgS) and glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 30Ā°C and at 50Ā°C. The Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is similar to the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 70Ā°C and at 90Ā°C Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is 6-7fold higher than the value for 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate, depending on assay temperature Products: -
Substrates: the Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 30Ā°C and at 50Ā°C. The Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is similar to the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 70Ā°C and at 90Ā°C Products: -
Substrates: in Persephonella marina two pathways for synthesis of glucosylglycerate are present: 1. the single-step pathway in with glucosylglycerate synthase (Ggs) catalyzes the synthesis of 2-O-(alpha-D-glucopyranosyl)-D-glycerate in one-step from ADP-glucose and D-glycerate, and 2. the two-step pathway in which glucosyl-3-phosphoglycerate synthase (GpgS) catalyzes the conversion of NDP-glucose and D-3-phosphoglycerate into glucosyl-3-phosphoglycerate, which is then converted to 2-O-(alpha-D-glucopyranosyl)-D-glycerate by glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
Substrates: synthesis of the solute glucosylglycerate proceeds via a two-step pathway involving glucosyl-3-phosphoglycerate synthase (GpgS) and glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
Substrates: synthesis of the solute glucosylglycerate proceeds via a two-step pathway involving glucosyl-3-phosphoglycerate synthase (GpgS) and glucosyl-3-phosphoglycerate phosphatase (GpgP) Products: -
at 30Ā°C, GpgP retains 37% of its enzyme activity towards 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate and 12% activity towards 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate in a reaction mixture without cations compared to the activity with 10 mM K+ and Co2+. Potassium chloride, in the concentration range of 10 to 100 mM, stimulates enzyme activity about 40% at 50Ā°C, but only when 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate is the substrate. However, at 30Ā°C, K+ has a stimulatory effect towards 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate, but not with 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate as the substrate
at 50Ā°C, divalent cations are absolutely required for GpgP activity with 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate as the substrate. Mg2+ and, to a lesser extent, Ni2+ can replace Co2+
at 50Ā°C, divalent cations are absolutely required for GpgP activity with 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate as the substrate. However, when 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate is the substrate, 3% activity is detected without cations, and the preferred metal ion with both substrates is Co2+ (10 mM). At 30Ā°C, GpgP retains 37% of its enzyme activity towards 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate and 12% activity towards 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate in a reaction mixture without cations compared to the activity with 10 mM K+ and Co2+
at 50Ā°C, divalent cations are absolutely required for GpgP activity with 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate as the substrate. Mg2+ and, to a lesser extent, Ni2+ can replace Co2+
0.1 mM is sufficient to promote the dephosphorylation of 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate. Maximal activation of dephosphorylation of 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate at 0.1 mM Mg2+. Maximal activation of dephosphorylation of 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 10 mM Mg2+
enzyme activity is not detected with Mn2+ when 2-O-(alpha-D-glucosyl)-3-phospho-D-glycerate is used, while Mn2+ had a strong stimulatory effect (85% of the maximal activity with Co2+) with 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate
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DISEASE
TITLE OF PUBLICATION
LINK TO PUBMED
Tuberculosis
Identification of glucosyl-3-phosphoglycerate phosphatase as a novel drug target against resistant strain of Mycobacterium tuberculosis (XDR1219) by using comparative metabolic pathway approach.
Mycobacterium tuberculosis Rv2419c, the missing glucosyl-3-phosphoglycerate phosphatase for the second step in methylglucose lipopolysaccharide biosynthesis.
the Vmax/Km-value for 2-O-(alpha-D-glucopyranisyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 30Ā°C and at 50Ā°C. The Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is similat to the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 70Ā°C and at 90Ā°C
the Vmax/Km-value for 2-O-(alpha-D-glucopyranisyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 30Ā°C and at 50Ā°C. The Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is similat to the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate at 70Ā°C and at 90Ā°C
the Vmax/Km-value for 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate is about 2fold higher than the value for 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate
pH 5.3: about 60% of maximal activity with 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate or 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate as substrate, pH 8.5: about 35% of maximal activity with 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate as substrate, about 80% of maximal activity with 2-O-(alpha-D-mannosyl)-3-phospho-D-glycerate as substrate
60Ā°C: about 30% of maximal activity with 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate as substrate, about 50% of maximal activity with 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate as substrate, 100Ā°C: about 15% of maximal activity with 2-O-(alpha-D-glucopyranosyl)-3-phospho-D-glycerate or 2-O-(alpha-D-mannopyranosyl)-3-phospho-D-glycerate as substrate
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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
crystal structures of apo-, vanadate-bound, and phosphate-bound MtbGpgP are refined to 1.95 A, 2.3 A and 1.77 A, respectively. Enzyme consists of a single domain made up of a central beta-sheet flanked by alpha-helices on either side. The active site is located in a positively charged cleft situated above the central beta-sheet
Glucosylglycerate biosynthesis in the deepest lineage of the bacteria: characterization of the thermophilic proteins GpgS and GpgP from Persephonella marina
Identification of glucosyl-3-phosphoglycerate phosphatase as a novel drug target against resistant strain of Mycobacterium tuberculosis (XDR1219) by using comparative metabolic pathway approach