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Literature summary for 2.1.1.6 extracted from

  • Masuda, M.; Tsunoda, M.; Imai, K.
    High-performance liquid chromatography-fluorescent assay of catechol-O-methyltransferase activity in rat brain (2003), Anal. Bioanal. Chem., 376, 1069-1073.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0055
-
norepinephrine corebral cortex, membrane-bound form Rattus norvegicus
0.00587
-
norepinephrine cerebellum, membrane-bound form Rattus norvegicus
0.00697
-
S-adenosyl-L-methionine soluble enzyme Rattus norvegicus
0.00837
-
norepinephrine brain stem, membrane-bound form Rattus norvegicus
0.00912
-
norepinephrine hippocampus, membrane-bound form Rattus norvegicus
0.0105
-
norepinephrine hypophysis, membrane-bound form Rattus norvegicus
0.0113
-
S-adenosyl-L-methionine membrane-bound enzyme Rattus norvegicus
0.0114
-
norepinephrine hypothalamus, membrane-bound form Rattus norvegicus
0.304
-
norepinephrine corebral cortex, soluble enzyme Rattus norvegicus
0.305
-
norepinephrine hippocampus, soluble enzyme Rattus norvegicus
0.313
-
norepinephrine cerebellum, soluble enzyme Rattus norvegicus
0.39
-
norepinephrine brain stem, soluble enzyme Rattus norvegicus
0.443
-
norepinephrine hypothalamus, soluble enzyme Rattus norvegicus
0.465
-
norepinephrine hypophysis, soluble enzyme Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane bound to.In all brain areas membrane-bound enzyme activity is lower than soluble enzyme activity Rattus norvegicus 16020
-
soluble in all brain areas membrane-bound enzyme activity is lower than soluble enzyme activity Rattus norvegicus
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ Km: 0.22 mM for soluble enzyme, 0.17 mM for membrane-bound enzyme Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
brain highest activity in hippocampus. In all brain areas membrane-bound enzyme activity is lower than soluble enzyme activity Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + 3,4-dihydroxybenzoic acid
-
Rattus norvegicus S-adenosyl-L-homocysteine + ?
-
?
S-adenosyl-L-methionine + norepinephrine
-
Rattus norvegicus S-adenosyl-L-homocysteine + ?
-
?

Synonyms

Synonyms Comment Organism
COMT
-
Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
membrane-bound enzyme Rattus norvegicus
7.8
-
soluble enzyme Rattus norvegicus