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Literature summary for 2.7.11.2 extracted from

  • Tovar-Mendez, A.; Hirani, T.A.; Miernyk, J.A.; Randall, D.D.
    Analysis of the catalytic mechanism of pyruvate dehydrogenase kinase (2005), Arch. Biochem. Biophys., 434, 159-168.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
PDK DNA sequence determination and analysis, expression of His6-tagged wild-type and mutant PDKs in Escherichia coli strain BL21(DE3) Arabidopsis thaliana

Protein Variants

Protein Variants Comment Organism
E238A site-directed mutagenesis, highly reduced activity compared to the wild-type PDK Arabidopsis thaliana
E238H site-directed mutagenesis, highly reduced activity compared to the wild-type PDK Arabidopsis thaliana
E238Q site-directed mutagenesis, highly reduced activity compared to the wild-type PDK Arabidopsis thaliana
H233A site-directed mutagenesis, reduced activity compared to the wild-type PDK Arabidopsis thaliana
K241A site-directed mutagenesis, highly reduced activity compared to the wild-type PDK Arabidopsis thaliana
L234A site-directed mutagenesis, reduced activity compared to the wild-type PDK Arabidopsis thaliana
L234H site-directed mutagenesis, reduced activity compared to the wild-type PDK Arabidopsis thaliana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetics Arabidopsis thaliana
0.05
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant L234H Arabidopsis thaliana
0.05
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant wild-type PDK Arabidopsis thaliana
0.075
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant L234A Arabidopsis thaliana
0.2
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant H233A Arabidopsis thaliana
0.28
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant E238A Arabidopsis thaliana
0.4
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant E238Q Arabidopsis thaliana
3.5
-
pyruvate dehydrogenase about, pH 7.5, 37°C, recombinant PDK mutant E238H Arabidopsis thaliana

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + pyruvate dehydrogenase Arabidopsis thaliana
-
ADP + phosphorylated pyruvate dehydrogenase
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q9SBJ1
-
-

Purification (Commentary)

Purification (Comment) Organism
recombinant His6-tagged wild-type and mutant PDKs from Escherichia coli strain BL21(DE3) by nickel affinity chromatography and gel filtration Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + pyruvate dehydrogenase
-
Arabidopsis thaliana ADP + phosphorylated pyruvate dehydrogenase
-
?

Synonyms

Synonyms Comment Organism
PDK
-
Arabidopsis thaliana
pyruvate dehydrogenase kinase
-
Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at, temperature-dependency of wild-type and mutant PDKs, overview Arabidopsis thaliana

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.0004
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant E238A Arabidopsis thaliana
0.0005
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant E238H Arabidopsis thaliana
0.07
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant L234A Arabidopsis thaliana
0.28
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant H233A Arabidopsis thaliana
0.39
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant PDK mutant L234H Arabidopsis thaliana
0.55
-
pyruvate dehydrogenase pH 7.5, 37°C, recombinant wild-type PDK Arabidopsis thaliana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at, pH-dependency of wild-type and mutant PDKs, overview Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
ATP
-
Arabidopsis thaliana