1.1.1.237: hydroxyphenylpyruvate reductase
This is an abbreviated version!
For detailed information about hydroxyphenylpyruvate reductase, go to the full flat file.
Word Map on EC 1.1.1.237
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1.1.1.237
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rosmarinic
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coronary
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clopidogrel
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post-treatment
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salvia
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miltiorrhiza
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adp-induced
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percutaneous
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aggregometry
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verifynow
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antiplatelet
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lamiaceae
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p-selectin
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cilostazol
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bunge
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coleus
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4-hydroxyphenyllactic
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lithospermic
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blumei
- 1.1.1.237
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rosmarinic
- coronary
- clopidogrel
-
post-treatment
- salvia
- miltiorrhiza
-
adp-induced
-
percutaneous
-
aggregometry
-
verifynow
-
antiplatelet
- lamiaceae
-
p-selectin
- cilostazol
- bunge
-
coleus
-
4-hydroxyphenyllactic
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lithospermic
- blumei
Reaction
Synonyms
4-hydroxyphenylpyruvate reductase, At1g12940, At1g79870, H(P)PR, HPPR, HPPR2, HPPR3, HPR2, HPR3, HPRP, hydroxy(phenyl)pyruvate reductase, hydroxyphenylpyruvate reductase, hydroxyphenylpyruvic acid reductase, Ppr, pprA
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General Information
General Information on EC 1.1.1.237 - hydroxyphenylpyruvate reductase
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evolution
malfunction
metabolism
physiological function
additional information
Coleus scutellarioides
the enzyme belongs to the family of D-isomer-specific 2-hydroxyacid dehydrogenases
evolution
comparison of HPPR gene sequences from Perilla frutescens and other species reveals that the HPPR genes are structurally conserved and might possess similar functions
evolution
Coleus scutellarioides
HPPR belongs to the family of D-isomer-specific 2-hydroxyacid dehydrogenases
evolution
no hydroxyphenylpyruvate reductase (HPPR) activity by isozyme HPPR4 from Arabidopsis thaliana. Isozyme HPPR2 mainly shows hydroxypyruvate reductase (HPR) activity (EC 1.1.1.81), while isozyme HPPR3 mainly shows 4-hydroxyphenylpyruvate reductase activity. Enzyme HPPR3 belongs to the family of D-isomer-specific 2-hydroxyacid dehydrogenases, group II
evolution
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no hydroxyphenylpyruvate reductase (HPPR) activity by isozyme HPPR4 from Arabidopsis thaliana. Isozyme HPPR2 mainly shows hydroxypyruvate reductase (HPR) activity (EC 1.1.1.81), while isozyme HPPR3 mainly shows 4-hydroxyphenylpyruvate reductase activity. Enzyme HPPR3 belongs to the family of D-isomer-specific 2-hydroxyacid dehydrogenases, group II
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Arabidopsis thaliana mutants defective in either HPPR2 or HPPR3 isozyme contain lower amounts of pHPL and are impaired in conversion of tyrosine to pHPL. Furthermore, a loss-of-function mutation in tyrosine aminotransferase (TAT) also reduces the pHPL accumulation in plants. HPR mutants show impaired growth and contain less chlorophyll, phenotypes, detailed overview
malfunction
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Arabidopsis thaliana mutants defective in either HPPR2 or HPPR3 isozyme contain lower amounts of pHPL and are impaired in conversion of tyrosine to pHPL. Furthermore, a loss-of-function mutation in tyrosine aminotransferase (TAT) also reduces the pHPL accumulation in plants. HPR mutants show impaired growth and contain less chlorophyll, phenotypes, detailed overview
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HPPR is a key enzyme involved in the rosmarinic acid biosynthesis via the tyrosine-dependent pahtway
metabolism
hydroxyphenylpyruvate reductase is involved in rosmarinic acid biosynthesis via the tyrosine pathway
metabolism
Coleus scutellarioides
the enzyme is involved in biosynthesis of rosmarinic acid via the tyrosine-derived pathway, overview. Activity of HPPR seems to be a arte-limiting point in rosmarinic acid biosynthesis
metabolism
the enzyme is involved in biosynthesis of rosmarinic acid via the tyrosine-derived pathway, tyrosine is metabolized to 4-hydroxyphenyllactate by tyrosine aminotransferase (TAT, EC 2.6.1.5) and 4-hydroxyphenylpyruvate reductase (HPPR, EC 1.1.1.237), pathway overview. 4-Hydroxyphenylpyruvated dioxygenase transforms 4-hydroxyphenylpyruvate acid to homogentisic acid, therefore competing for the same substrate with HPPR in the tyrosine-derived pathway. Regulation of water-soluble phenolic acid biosynthesis in Salvia miltiorrhiza via regulators at molecular level, such as the phenylalanine ammonia-lyase gene (PAL), cinnamic acid 4-hydroxylase gene (C4H), 4-coumarate-CoA ligase gene (4CL), tyrosine aminotransferase gene (TAT), 4-hydroxyphenylpyruvate reductase gene (HPPR), 4-hydroxyphenylpyruvated dioxygenase gene (HPPD), hydroxycinnamoyl-CoA:hydroxyphenyllactate hydroxycinnamoyl transferase-like gene (RAS-like), and v-myb avian myeloblastosis viral oncogene homolog 4 gene (MYB4), and production of anthocyanin pigmentation 1 gene (AtPAP1), and via regulators at cell level, such as methyl jasmonate, salicylic acid, abscisic acid, polyamines, metal ions, hydrogen peroxide (H2O2), ultraviolet-B radiation, and yeast elicitor, overview
metabolism
the key enzyme is involved in biosynthesis of rosmarinic acid via the tyrosine-derived pathway
metabolism
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the key enzyme is involved in biosynthesis of rosmarinic acid via the tyrosine-derived pathway, overview
metabolism
Coleus scutellarioides
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the key enzyme is involved in rosmarinic acid biosynthesis
metabolism
in vitro characterization of the recombinant proteins reveals that HPPR2 has both hydroxypyruvate reductase (HPR EC 1.1.1.81) and hydroxyphenylpyruvate reductase (HPPR) activities, whereas HPPR3 has a strong preference for pHPP, and both enzymes are localized in the cytosol. In Arabidopsis thaliana, HPPR2 and HPPR3, together with tyrosine aminotransferase 1 (TAT1), constitute to a probably conserved biosynthetic pathway from tyrosine to 4-hydroxyphenyllactic acid (pHPL), from which some specialized metabolites, such as rosmarinic acid (RA), can be generated in specific groups of plants. Role of HPPR in the tyrosine conversion pathway, overview
metabolism
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in vitro characterization of the recombinant proteins reveals that HPPR2 has both hydroxypyruvate reductase (HPR EC 1.1.1.81) and hydroxyphenylpyruvate reductase (HPPR) activities, whereas HPPR3 has a strong preference for pHPP, and both enzymes are localized in the cytosol. In Arabidopsis thaliana, HPPR2 and HPPR3, together with tyrosine aminotransferase 1 (TAT1), constitute to a probably conserved biosynthetic pathway from tyrosine to 4-hydroxyphenyllactic acid (pHPL), from which some specialized metabolites, such as rosmarinic acid (RA), can be generated in specific groups of plants. Role of HPPR in the tyrosine conversion pathway, overview
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Wickerhamia fluorescens efficiently converts phenylalanine and phenylpyruvate to D-phenyllactate. These compounds up-regulate the transcription of enzyme gene pprA
physiological function
enzyme HPPR catalyzes the first specific biosynthetic step in the biosynthesis of rosmarinic acid from the aromatic amino acids phenylalanine and tyrosine
physiological function
Arabidopsis mutants defective in either isoform HPPR2 or HPPR3 contain lower amounts of 4-hydroxyphenyllactic acid and are impaired in conversion of tyrosine to 4-hydroxyphenyllactic acid
physiological function
hydroxyphenylpyruvate reductase (HPPR), which catalyzes the reduction of 4-hydroxyphenylpyruvic acid (pHPP) to 4-hydroxyphenyllactic acid (pHPL), is the key enzyme in the biosynthesis of rosmarinic acid (RA) from tyrosine and, so far, HPPR activity is reported only from the RA-accumulating plants
physiological function
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Wickerhamia fluorescens efficiently converts phenylalanine and phenylpyruvate to D-phenyllactate. These compounds up-regulate the transcription of enzyme gene pprA
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physiological function
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Arabidopsis mutants defective in either isoform HPPR2 or HPPR3 contain lower amounts of 4-hydroxyphenyllactic acid and are impaired in conversion of tyrosine to 4-hydroxyphenyllactic acid
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physiological function
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hydroxyphenylpyruvate reductase (HPPR), which catalyzes the reduction of 4-hydroxyphenylpyruvic acid (pHPP) to 4-hydroxyphenyllactic acid (pHPL), is the key enzyme in the biosynthesis of rosmarinic acid (RA) from tyrosine and, so far, HPPR activity is reported only from the RA-accumulating plants
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Coleus scutellarioides
movement of the two domains after cosubstrate binding in order to close the inter-domain cleft for catalysis. The amino acids participating in the contacts are Leu205, Arg232 and His279 from the cosubstrate-binding domain and Ser53, Gly77 and Asp79 from the substrate-binding domain. The active site of H(P)PR is formed by the amino-acid residues Arg232 and His279, active site structure, overview