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Literature summary for 1.14.17.1 extracted from

  • Long, R.A.; Weppelman, R.M.; Taylor, J.E.; Tolman, R.L.; Olson, G.
    Purification and characterization of avian dopamine beta-hydroxylase (1981), Biochemistry, 20, 7423-7431.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
acetate
-
Gallus gallus
dehydroascorbate
-
Gallus gallus
fumarate
-
Gallus gallus

Inhibitors

Inhibitors Comment Organism Structure
ascorbate
-
Gallus gallus
norepinephrine
-
Gallus gallus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.2
-
dopamine
-
Gallus gallus
2
-
ascorbate
-
Gallus gallus

Localization

Localization Comment Organism GeneOntology No. Textmining
chromaffin granule
-
Gallus gallus 42583
-

Metals/Ions

Metals/Ions Comment Organism Structure
NaCl
-
Gallus gallus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
80000
-
4 * 80000, SDS-PAGE after treatment with 2-mercaptoethanol, subunits joined in pairs by disulfide bonds Gallus gallus
316000
-
gel filtration Gallus gallus

Organism

Organism UniProt Comment Textmining
Gallus gallus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein
-
Gallus gallus

Purification (Commentary)

Purification (Comment) Organism
-
Gallus gallus

Reaction

Reaction Comment Organism Reaction ID
dopamine + 2 ascorbate + O2 = noradrenaline + 2 monodehydroascorbate + H2O uni-uni bi-uni ping pong mechanism Gallus gallus

Source Tissue

Source Tissue Comment Organism Textmining
adrenal gland
-
Gallus gallus
-

Storage Stability

Storage Stability Organism
-20°C, stable for at least 6 weeks Gallus gallus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3,4-dihydroxyphenethylamine + ascorbate + O2 3,4-dihydroxyphenethylamine is identical with 4-(2-aminoethyl)-1,2-benzendiol i.e. dopamine, ferricyanide can replace ascorbate Gallus gallus noradrenaline + dehydroascorbate + H2O norepinephrine ?

Subunits

Subunits Comment Organism
tetramer 4 * 80000, SDS-PAGE after treatment with 2-mercaptoethanol, subunits joined in pairs by disulfide bonds Gallus gallus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
-
4 24 h, 10-15% loss of activity Gallus gallus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5 6
-
Gallus gallus

pH Range

pH Minimum pH Maximum Comment Organism
4.5 6.5 sharp decrease in activity between pH 4.5 and 5.0 and between pH 6.0 and 6.5 Gallus gallus

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
5
-
norepinephrine
-
Gallus gallus
20
-
ascorbate
-
Gallus gallus