1.1.1.79: glyoxylate reductase (NADP+)
This is an abbreviated version!
For detailed information about glyoxylate reductase (NADP+), go to the full flat file.
Reaction
Synonyms
aac4036, At3g25530, AtGLYR1, AtGLYR2, AtGR1, AtGR2, D-2-hydroxy-acid dehydrogenase, GhrA, glycerate dehydrogenase, glyoxylate reductase, glyoxylate reductase 1, glyoxylate reductase 2, glyoxylate reductase isoform 1, glyoxylate reductase/hydroxypyruvate reductase, glyoxylate/succinic semialdehyde reductase, GLYR1, GLYR2, GOR1, Gor1p, GR/HPR, GR1, GR2, GRHPR, GRHRP, HPR2, HPR3, More, NAD(P)H-dependent GR, NADPH/NADH-dependent glyoxylate/hydroxypyruvate reductases, PfuGRHPR, PhoGRHPR, PtGR, PyaGRHPR, TthGR1
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General Information
General Information on EC 1.1.1.79 - glyoxylate reductase (NADP+)
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evolution
malfunction
metabolism
physiological function
additional information
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role in the substrate binding mode and role of Leu53 and Trp138 in substrate trafficking is conserved between human and archeal enzymes, modelling, overview
evolution
role in the substrate binding mode and role of Leu53 and Trp138 in substrate trafficking is conserved between human and archeal enzymes, modelling, overview
evolution
role in the substrate binding mode and role of Leu53 and Trp138 in substrate trafficking is conserved between human and archeal enzymes, modelling, overview
evolution
the deduced amino acid sequence of the enzyme from Paecilomyes thermophila has low similarities to the reported glyoxylate reductases
evolution
the enzyme belongs to the beta-HAD (beta-hydroxyacid dehydrogenase) protein family
evolution
the enzyme belongs to the beta-HAD (beta-hydroxyacid dehydrogenase) protein family. AtHPR2 and AtHPR3 are 45% identical to each other at the amino acid level, but only 19-25% identical to AtHPR1, the NADH-dependent form, and 8-9% identical to the AtGLYRs. None of the AtHPRs contains the active-site residues conserved in AtGLYR1 and AtGLYR2, indicating that the sites responsible for reducing glyoxylate differ greatly between the AtGLYRs and AtHPRs
evolution
the enzyme belongs to the group of enzymes with the most common NAD(P)-binding fold, the Rossmann fold, as well as other, less common cofactor binding folds (TIM barrel and dihydroquinoate synthase-like folds)
evolution
the primary sequence of cytosolic AtGLYR1 reveals several sequence elements that are consistent with the beta-HAD (beta-hydroxyacid dehydrogenase) protein family, sequence alignment of AtGLYR1 and beta-HAD family members, overview. AtHPR2 and AtHPR3 are 45% identical to each other at the amino acid level, but only 19-25% identical to AtHPR1, the NADH-dependent form, and 8-9% identical to the AtGLYRs. None of the AtHPRs contains the active-site residues conserved in AtGLYR1 and AtGLYR2, indicating that the sites responsible for reducing glyoxylate differ greatly between the AtGLYRs and AtHPRs
evolution
the primary sequence of plastidial AtGLYR2 reveals several sequence elements that are consistent with the beta-HAD (beta-hydroxyacid dehydrogenase) protein family, sequence alignment of AtGLYR2 and beta-HAD family members, overview. AtHPR2 and AtHPR3 are 45% identical to each other at the amino acid level, but only 19-25% identical to AtHPR1, the NADH-dependent form, and 8-9% identical to the AtGLYRs. None of the AtHPRs contains the active-site residues conserved in AtGLYR1 and AtGLYR2, indicating that the sites responsible for reducing glyoxylate differ greatly between the AtGLYRs and AtHPRs
evolution
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the deduced amino acid sequence of the enzyme from Paecilomyes thermophila has low similarities to the reported glyoxylate reductases
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evolution
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role in the substrate binding mode and role of Leu53 and Trp138 in substrate trafficking is conserved between human and archeal enzymes, modelling, overview
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malfunction
enzyme deficiency is the underlying cause of primary hyperoxaluria type 2 (PH2) and leads to increased urinary oxalate levels, formation of kidney stones and renal failure. Upregulation of glyoxylate reductase/hydroxypyruvate reductase (GRHPR) is associated with intestinal epithelial cells apoptosis in TNBS-induced experimental colitis, the phenomenon also occurs in patients with Crohn's disease. Overexpression of GRHPR is accompanied by active caspase-3 and cleaved poly ADP-ribose polymerase (PARP) accumulation. Knockdown of GRHPR inhibits the accumulation of active caspase-3 and cleaved PARP in TNF-alpha treated HT-29 cells
glyoxylate reductase is an important enzyme involved in theglyoxylate metabolism in organism
metabolism
glyoxylate reductase/hydroxypyruvate reductase (GRHPR) is a key enzyme in the glyoxylate cycle
metabolism
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glyoxylate reductase is an important enzyme involved in theglyoxylate metabolism in organism
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GLYR1 scavenges succinic semialdehyde and glyoxylate that escape from mitochondria and peroxisomes, respectively
physiological function
upregulation of glyoxylate reductase/hydroxypyruvate reductase is associated with intestinal epithelial cells apoptosis in trinitrobenzenesulfonic acid-induced colitis
physiological function
human glyoxylate reductase/hydroxypyruvate reductase (GRHPR) is a D-2 hydroxy-acid dehydrogenase that plays a critical role in the removal of the metabolic by-product glyoxylate from the liver
physiological function
the NADPH/NADH-dependent glyoxylate/hydroxypyruvate reductases (GRHPR) regulate the glyoxylate content within cells, highly conserved enzymes with a dual activity as they are able to reduce glyoxylate to glycolate and to convert hydroxypyruvate into D-glycerate. The enzyme from the hyperthermophilic archaeon, displays a higher preference for glyoxylate than hydroxypyruvate in presence of NADH, whereas no activity is detected in presence of NADPH
physiological function
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the NADPH/NADH-dependent glyoxylate/hydroxypyruvate reductases (GRHPR) regulates the glyoxylate content within cells, highly conserved enzymes with a dual activity as they are able to reduce glyoxylate to glycolate and to convert hydroxypyruvate into D-glycerate. The enzyme from the hyperthermophilic archaeon, displays a higher preference for glyoxylate than hydroxypyruvate in presence of NADH, whereas no activity is detected in presence of NADPH
physiological function
the NADPH/NADH-dependent glyoxylate/hydroxypyruvate reductases (GRHPR) regulates the glyoxylate content within cells, highly conserved enzymes with a dual activity as they are able to reduce glyoxylate to glycolate and to convert hydroxypyruvate into D-glycerate. The enzyme from the hyperthermophilic archaeon, displays a higher preference for glyoxylate than hydroxypyruvate in presence of NADH, whereas no activity is detected in presence of NADPH
physiological function
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isoforms GR1 and GR2 function redundantly in detoxifying glyoxylate in rice plants under normal growth conditions, whereas both are simultaneously required under high photorespiration conditions
physiological function
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the NADPH/NADH-dependent glyoxylate/hydroxypyruvate reductases (GRHPR) regulates the glyoxylate content within cells, highly conserved enzymes with a dual activity as they are able to reduce glyoxylate to glycolate and to convert hydroxypyruvate into D-glycerate. The enzyme from the hyperthermophilic archaeon, displays a higher preference for glyoxylate than hydroxypyruvate in presence of NADH, whereas no activity is detected in presence of NADPH
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due to the glutamate at the -1 position, GLYR1 C-terminal tripeptide, -SRE, does not function as a type 1 peroxisomal targeting signal, PTS1. GLYR1 is not relocalized from the cytosol to peroxisomes in response to abiotic stress
additional information
identification of catalytically important amino acid residues for enzymatic reduction of glyoxylate in plants by bifunctional enzyme glyoxylate/succinic semialdehyde reductase 1, that converts both glyoxylate and succinic semialdehyde into their corresponding hydroxyacid equivalents. Residue Lys170 is essential for catalysis, Phe231, Asp239, Ser121 and Thr95 are more important in substrate binding than in catalysis, and Asn174 is more important in catalysis. Residues Thr95, Phe231 and Asp239 serve a more important role in substrate orientation and docking than in catalysis
additional information
identification of catalytically important amino acid residues for enzymatic reduction of glyoxylate in plants by bifunctional enzyme glyoxylate/succinic semialdehyde reductase 1, that converts both glyoxylate and succinic semialdehyde into their corresponding hydroxyacid equivalents. Residue Lys170 is essential for catalysis, Phe231, Asp239, Ser121 and Thr95 are more important in substrate binding than in catalysis, and Asn174 is more important in catalysis. Residues Thr95, Phe231 and Asp239 serve a more important role in substrate orientation and docking than in catalysis
additional information
identification of catalytically important amino acid residues for enzymatic reduction of glyoxylate in plants by bifunctional enzyme glyoxylate/succinic semialdehyde reductase 1, that converts both glyoxylate and succinic semialdehyde into their corresponding hydroxyacid equivalents. Residue Lys170 is essential for catalysis, Phe231, Asp239, Ser121 and Thr95 are more important in substrate binding than in catalysis, and Asn174 is more important in catalysis. Residues Thr95, Phe231 and Asp239 serve a more important role in substrate orientation and docking than in catalysis
additional information
identification of catalytically important amino acid residues for enzymatic reduction of glyoxylate in plants by bifunctional enzyme glyoxylate/succinic semialdehyde reductase 1, that converts both glyoxylate and succinic semialdehyde into their corresponding hydroxyacid equivalents. Residue Lys170 is essential for catalysis, Phe231, Asp239, Ser121 and Thr95 are more important in substrate binding than in catalysis, and Asn174 is more important in catalysis. Residues Thr95, Phe231 and Asp239 serve a more important role in substrate orientation and docking than in catalysis
additional information
-
identification of catalytically important amino acid residues for enzymatic reduction of glyoxylate in plants by bifunctional enzyme glyoxylate/succinic semialdehyde reductase 1, that converts both glyoxylate and succinic semialdehyde into their corresponding hydroxyacid equivalents. Residue Lys170 is essential for catalysis, Phe231, Asp239, Ser121 and Thr95 are more important in substrate binding than in catalysis, and Asn174 is more important in catalysis. Residues Thr95, Phe231 and Asp239 serve a more important role in substrate orientation and docking than in catalysis
additional information
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residues Leu53 and Trp138 act as gatekeepers at the entrance of a tunnel connecting the active site to protein surface. Substrate optimum position within the catalytic pocket is raised thought interactions with catalytic residues His288, Arg241, Val76, and Gly77, catalytic mechanism modelling, overview
additional information
residues Leu53 and Trp138 act as gatekeepers at the entrance of a tunnel connecting the active site to protein surface. Substrate optimum position within the catalytic pocket is raised thought interactions with catalytic residues His288, Arg241, Val76, and Gly77, catalytic mechanism modelling, overview
additional information
residues Leu53 and Trp138 act as gatekeepers at the entrance of a tunnel connecting the active site to protein surface. Substrate optimum position within the catalytic pocket is raised thought interactions with catalytic residues His288, Arg241, Val76, and Gly77, catalytic mechanism modelling, overview
additional information
-
residues Leu53 and Trp138 act as gatekeepers at the entrance of a tunnel connecting the active site to protein surface. Substrate optimum position within the catalytic pocket is raised thought interactions with catalytic residues His288, Arg241, Val76, and Gly77, catalytic mechanism modelling, overview
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