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(4-coumaroyl)acetyl-CoA + feruloyl-CoA + H2O
demethoxycurcumin + CO2 + 2 CoA
preferred activity of CURS1, CURS2, and CURS3
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
preferred activity of CURS1, CURS2, and CURS3
-
-
?
(4-coumaroyl)acetyl-CoA + feruloyl-CoA + H2O
demethoxycurcumin + CO2 + 2 CoA
preferred activity of CURS1, CURS2, and CURS3
-
-
?
cinnamoyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + dicinnamoylmethane + N-acetylcysteamine
-
low activity
-
-
?
feruloyl-CoA + 3-oxo-5-phenyl-4-pentenoic acid + H2O
CoA + cinnamoylferuloylmethane + CO2
-
-
-
?
feruloyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + cinnamoylferuloylmethane + N-acetylcysteamine + CO2
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
additional information
?
-
feruloyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + cinnamoylferuloylmethane + N-acetylcysteamine + CO2
-
-
-
-
?
feruloyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + cinnamoylferuloylmethane + N-acetylcysteamine + CO2
-
-
-
?
feruloyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + cinnamoylferuloylmethane + N-acetylcysteamine + CO2
via 3-oxo-5-phenyl-4-pentenoic acid
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
-
-
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
-
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
preferred activity of CURS1, CURS2, and CURS3
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
-
feruloyl-CoA is the preferred starter substrate
product identification by LC-ESI MS/MS
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
two-step reaction of hydrolysis and decarboxylative condensation
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
CURS1 catalyzes the hydrolysis of diketide-CoA to yield a 2-oxoacid (ii) and decarboxylative condensation of the 2-oxoacid with feruloyl-CoA to yield curcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA, cf. EC 2.3.1.219. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA, cf. EC 2.3.1.219. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA, cf. EC 2.3.1.219. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA, cf. EC 2.3.1.219. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
-
substrate specificity, overview. CURS2 prefers feruloyl-CoA as a starter substrate, while CURS3 is equally active with both feruloyl-CoA and 4-coumaroyl-CoA. Thus, CURS2 synthesizes curcumin or demethoxycurcumin and CURS3 synthesizes curcumin, bisdemethoxycurcumin and demethoxycurcumin
-
-
?
additional information
?
-
-
the enzyme can also convert diketide-CoA esters into 2-oxoacids and CoA, which are then converted into curcuminoids. For activity assays, cinnamoyl-CoA, 4-coumaroyl-CoA, or feruloyl-CoA are used as starter substrates and malonyl-CoA or cinnamoyl-diketide-N-acetylcysteamine as extender substrates, cf. EC 2.3.1.218 and EC 2.31.219
-
-
?
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(4-coumaroyl)acetyl-CoA + feruloyl-CoA + H2O
demethoxycurcumin + CO2 + 2 CoA
preferred activity of CURS1, CURS2, and CURS3
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
preferred activity of CURS1, CURS2, and CURS3
-
-
?
(4-coumaroyl)acetyl-CoA + feruloyl-CoA + H2O
demethoxycurcumin + CO2 + 2 CoA
preferred activity of CURS1, CURS2, and CURS3
-
-
?
feruloyl-CoA + cinnamoyl-diketide-N-acetylcysteamine + H2O
CoA + cinnamoylferuloylmethane + N-acetylcysteamine + CO2
-
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
additional information
?
-
CURS1 catalyzes the hydrolysis of diketide-CoA to yield a 2-oxoacid (ii) and decarboxylative condensation of the 2-oxoacid with feruloyl-CoA to yield curcumin
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
-
-
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
-
-
-
?
feruloyl-CoA + feruloylacetyl-CoA + H2O
2 CoA + curcumin + CO2
preferred activity of CURS1, CURS2, and CURS3
-
-
?
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0.0043
feruloyl-CoA
pH 7.5, 37°C, CURS2
0.0012 - 0.138
3-oxo-5-phenyl-4-pentenoic acid
0.0017 - 0.113
cinnamoyl-diketide-N-acetylcysteamine
0.0022 - 0.018
feruloyl-CoA
additional information
additional information
-
kinetic analysis of CURS, overview
-
0.0012
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant mutant H303Q
0.0059
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant wild-type enzyme
0.138
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant mutant G211F
0.0017
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant wild-type enzyme
0.003
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant mutant H303Q
0.113
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant mutant G211F
0.0022
feruloyl-CoA
pH 7.5, 37°C, CURS3
0.018
feruloyl-CoA
pH 7.5, 37°C, CURS1
0.018
feruloyl-CoA
-
pH 8.0, 37°C, with cinnamoyl-diketide-N-acetylcysteaminyl-CoA
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0.0068
feruloyl-CoA
pH 7.5, 37°C, CURS2
0.0017 - 0.125
3-oxo-5-phenyl-4-pentenoic acid
0.00007 - 0.0043
cinnamoyl-diketide-N-acetylcysteamine
0.0032 - 0.0183
feruloyl-CoA
0.0017
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant mutant H303Q
0.0083
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant mutant G211F
0.125
3-oxo-5-phenyl-4-pentenoic acid
pH 7.5, 37°C, recombinant wild-type enzyme
0.00007
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant mutant H303Q
0.0015
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant mutant G211F
0.0043
cinnamoyl-diketide-N-acetylcysteamine
pH 7.5, 37°C, recombinant wild-type enzyme
0.0032
feruloyl-CoA
pH 7.5, 37°C, CURS3
0.0183
feruloyl-CoA
pH 7.5, 37°C, CURS1
0.0183
feruloyl-CoA
-
pH 8.0, 37°C, with cinnamoyl-diketide-N-acetylcysteaminyl-CoA
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evolution
the enzyme belongs to the Type III polyketide synthase family. A Cys-His-Asn catalytic triad is conserved in all known type III PKSs
evolution
-
the enzyme belongs to the Type III polyketide synthase family
evolution
the enzyme belongs to the Type III polyketide synthase family
evolution
the enzyme belongs to the Type III polyketide synthase family. A Cys-His-Asn catalytic triad is conserved in all known type III PKSs
evolution
the enzyme belongs to the type III polyketide synthase family. A Cys-His-Asn catalytic triad is conserved in all known type III polyketide synthases
metabolism
-
the enzyme catalyzes a step in the curcuminoid biosynthesis, pathway overview
metabolism
the enzyme catalyzes a step in the curcuminoid biosynthesis, pathway overview
additional information
active site residue His303 is important for 2-oxoacid condensation, involvement of the hydrophobic cavity around Phe265 in 2-oxoacid condensation, wild-type and mutant ligand binding structures and structure-function relationship, modeling, overview
additional information
-
CURS can collaborate with curcumin synthase, DCS, EC 2.3.1.218, which provides the substrate feruloylacetyl-CoA from condensation of feruloyl-CoA and malonyl-CoA, overview
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biofuel production
incorporation of curcumin and phenylpentanoids into lignin has a positive effect on saccharification yield after alkaline pretreatment. To design a lignin that is easier to degrade under alkaline conditions, curcumin (diferuloylmethane) is produced in the model plant Arabidopsis thaliana via simultaneous expression of the turmeric genes diketide-CoA synthase (DCS) and curcumin synthase 2 (CURS2). The transgenic plants produce a plethora of curcumin- and phenylpentanoid-derived compounds with no negative impact on growth. Catalytic hydrogenolysis gives evidence that both curcumin and phenylpentanoids are incorporated into the lignifying cell wall, thereby significantly increasing saccharification efficiency after alkaline pretreatment of the transgenic lines by 14-24% as compared with the wild type
analysis
-
method to detect expression differences between species in detail, based on RNA sequencing analysis. The difference in the contents of curcuminoids among the species can be explained by the changes in the expression of genes encoding diketide-CoA synthase, and curcumin synthase at the branching point of the curcuminoid biosynthesis pathway
synthesis
production of curcuminoids using an engineered artificial pathway in Escherichia coli. Expression of Arabidopsis thaliana 4-coumaroyl-CoA ligase and Curcuma longa diketide-CoA synthase (DCS) and curcumin synthase (CURS1) leads to synthesis of 70 mg/l of curcumin from ferulic acid. Bisdemethoxycurcumin and demethoxycurcumin are produced, but in lower concentrations, by feeding 4-coumaric acid or a mixture of 4-coumaric acid and ferulic acid, respectively. To produce caffeic acid, tyrosine ammonia lyase from Rhodotorula glutinis and 4-coumarate 3-hydroxylase from Saccharothrix espanaensis are used. Caffeoyl-CoA 3-O-methyltransferase from Medicago sativa converts caffeoyl-CoA to feruloyl-CoA. Using caffeic acid, 4-coumaric acid or tyrosine as a substrate, 3.9, 0.3, and 0.2 mg/l of curcumin are produced, respectively
synthesis
biosynthetic pathway of p-coumaric acid, caffeic acid and curcumin in Escherichia coli can be triggered by using heat shock promoters, suggesting its potential for the development of new industrial bioprocesses or even new bacterial therapies. p-Coumaric acid is successfully produced from tyrosine and caffeic acid produced either from tyrosine or p-coumaric acid using tyrosine ammonia lyase (TAL) from Rhodotorula glutinis, 4-coumarate 3-hydroxylase (C3H) from Saccharothrix espanaensis or cytochrome P450 CYP199A2 from Rhodopseudomonas palustris. The highest p-coumaric acid production obtained is 2.5 mM. Caffeic acid production reaches 0.370 mM. 0.017 mM cumin is produced using 4-coumarate-CoA ligase (4CL1) from Arabidopsis thaliana, diketide-CoA synthase (DCS) and curcumin synthase 1 (CURS1) from Curcuma longa
synthesis
design, construction and optimization of a heterologous pathway to produce curcuminoids in Escherichia coli. This pathway involves six enzymes, tyrosine ammonia lyase (TAL), 4-coumarate 3-hydroxylase (C3H), caffeic acid O-methyltransferase (COMT), 4-coumarate-CoA ligase (4CL), diketide-CoA synthase (DCS), and curcumin synthase (CURS1). Curcumin production is enhanced and reachs 43.2 mM, corresponding to an improvement of 160% comparing to mono-culture system
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Katsuyama, Y.; Kita, T.; Horinouchi, S.
Identification and characterization of multiple curcumin synthases from the herb Curcuma longa
FEBS Lett.
583
2799-2803
2009
Curcuma longa (C0SVZ6), Curcuma longa (C6L7V8), Curcuma longa (C6L7V9), Curcuma longa
brenda
Katsuyama, Y.; Kita, T.; Funa, N.; Horinouchi, S.
Curcuminoid biosynthesis by two type III polyketide synthases in the herb Curcuma longa
J. Biol. Chem.
284
11160-11170
2009
Curcuma longa
brenda
Katsuyama, Y.; Miyazono, K.; Tanokura, M.; Ohnishi, Y.; Horinouchi, S.
Structural and biochemical elucidation of mechanism for decarboxylative condensation of beta-keto acid by curcumin synthase
J. Biol. Chem.
286
6659-6668
2011
Curcuma longa (C0SVZ6)
brenda
Rodrigues, J.L.; Araujo, R.G.; Prather, K.L.; Kluskens, L.D.; Rodrigues, L.R.
Production of curcuminoids from tyrosine by a metabolically engineered Escherichia coli using caffeic acid as an intermediate
Biotechnol. J.
10
599-609
2015
Curcuma longa (C0SVZ6), Curcuma longa
brenda
Li, D.; Ono, N.; Sato, T.; Sugiura, T.; Altaf-Ul-Amin, M.; Ohta, D.; Suzuki, H.; Arita, M.; Tanaka, K.; Ma, Z.; Kanaya, S.
Targeted integration of RNA-Seq and metabolite data to elucidate curcuminoid biosynthesis in four Curcuma species
Plant Cell Physiol.
56
843-851
2015
Curcuma longa
brenda
Rodrigues, J.; Couto, M.; Arajo, R.; Prather, K.; Kluskens, L.; Rodrigues, L.
Hydroxycinnamic acids and curcumin production in engineered Escherichia coli using heat shock promoters
Biochem. Eng. J.
125
41-49
2017
Curcuma longa (C0SVZ6)
-
brenda
Rodrigues, J.L.; Gomes, D.; Rodrigues, L.R.
A combinatorial approach to optimize the production of curcuminoids from tyrosine in Escherichia coli
Front. Bioeng. Biotechnol.
8
59
2020
Curcuma longa (C0SVZ6)
brenda
Oyarce, P.; De Meester, B.; Fonseca, F.; de Vries, L.; Goeminne, G.; Pallidis, A.; De Rycke, R.; Tsuji, Y.; Li, Y.; Van den Bosch, S.; Sels, B.; Ralph, J.; Vanholme, R.; Boerjan, W.
Introducing curcumin biosynthesis in Arabidopsis enhances lignocellulosic biomass processing
Nat. Plants
5
225-237
2019
Curcuma longa (C6L7V8), Curcuma longa
brenda
Sandeep, I.S.; Das, S.; Nasim, N.; Mishra, A.; Acharya, L.; Joshi, R.K.; Nayak, S.; Mohanty, S.
Differential expression of CURS gene during various growth stages, climatic condition and soil nutrients in turmeric (Curcuma longa) Towards site specific cultivation for high curcumin yield
Plant Physiol. Biochem.
118
348-355
2017
Curcuma longa (C0SVZ6), Curcuma longa
brenda