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Literature summary extracted from

  • Yamamoto, K.; Kobayashi, N.; Yoshitama, K.; Teramoto, S.; Komamine, A.
    Isolation and purification of tyrosine hydroxylase from callus cultures of Portulaca grandiflora (2001), Plant Cell Physiol., 42, 969-975.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.14.16.2 additional information inhibited by metal chelating agents Portulaca grandiflora

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.14.16.2 0.15
-
 6-methyl-5,6,7,8-tetrahydrobiopterin
-
 Portulaca grandiflora
1.14.16.2 0.5
-
 tyrosine
-
 Portulaca grandiflora

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.14.16.2 Iron Fe2+ activates Portulaca grandiflora
1.14.16.2 Mn2+ activates Portulaca grandiflora

Organism

EC Number Organism UniProt Comment Textmining
1.14.16.2 Portulaca grandiflora
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.14.16.2
-
 Portulaca grandiflora

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.16.2 callus cell culture Portulaca grandiflora
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.16.2 L-tyrosine + 2-amino-4-hydroxy-6,7-dimethyltetrahydropterin + O2 synthetic pterin as electron donor Portulaca grandiflora ?
-
 ?
1.14.16.2 L-tyrosine + 2-amino-4-hydroxy-6-methyltetrahydropterin + O2 synthetic pterin as electron donor Portulaca grandiflora ?
-
 ?
1.14.16.2 L-tyrosine + 6-methyl-5,6,7,8-tetrahydrobiopterin + O2
-
 Portulaca grandiflora 3,4-dihydroxy-L-phenylalanine + 6-methyl-4a-hydroxytetrahydrobiopterin
-
 r
1.14.16.2 L-tyrosine + tetrahydrobiopterin + O2
-
 Portulaca grandiflora 3,4-dihydroxy-L-phenylalanine + dihydrobiopterin + H2O 3,4-dihydroxy-L-phenylalanine is identical with dopa ?