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Literature summary for 1.10.3.1 extracted from

  • Olianas, A.; Sanjust, E.; Pellegrini, M.; Rescigno, A.
    Tyrosinase activity and hemocyanin in the hemolymph of the slipper lobster Scyllarides latus (2005), J. Comp. Physiol. B, 175, 405-411.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
chymotrypsin proteolytic 2.5fold activation Scyllarides latus
Trypsin proteolytic 3.5fold activation Scyllarides latus

Inhibitors

Inhibitors Comment Organism Structure
kojic acid 99% inhibition of diphenolase activity at 1 mM Scyllarides latus
papain proteolytic inactivation Scyllarides latus
tropolone 97% inhibition of diphenolase activity at 1 mM Scyllarides latus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.427
-
dopamine pH 6.5, 25°C Scyllarides latus

Metals/Ions

Metals/Ions Comment Organism Structure
Cu2+
-
Scyllarides latus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
78000
-
6 * 78000, SDS-PAGE Scyllarides latus
440000
-
gel filtration Scyllarides latus

Organism

Organism UniProt Comment Textmining
Scyllarides latus
-
mediterranean slipper lobster
-

Posttranslational Modification

Posttranslational Modification Comment Organism
proteolytic modification proteolytic activation by trypsin and chymotrypsin, proteolytic inactivation by papain Scyllarides latus

Purification (Commentary)

Purification (Comment) Organism
native tyrosinase from hemolymph to homogeneity by anion exchange and hydrophobic interaction chromatography Scyllarides latus

Source Tissue

Source Tissue Comment Organism Textmining
hemolymph
-
Scyllarides latus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
dopamine + O2
-
Scyllarides latus ?
-
?
additional information the purified tyrosinase from hemolymph shows both monophenolase, EC 1.14.18.1, and diphenolase, EC 1.10.3.1, activity and therefore it can be defined as a true tyrosinase, the purified hemocynin does not show any tyrosinase activity Scyllarides latus ?
-
?

Subunits

Subunits Comment Organism
hexamer 6 * 78000, SDS-PAGE Scyllarides latus

Synonyms

Synonyms Comment Organism
catecholase
-
Scyllarides latus
CO
-
Scyllarides latus
More cf. EC 1.14.18.1 Scyllarides latus
o-diphenol: dioxygen oxidoreductase, dehydrogenating
-
Scyllarides latus
phenoloxidase
-
Scyllarides latus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Scyllarides latus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
282
-
dopamine pH 6.5, 25°C Scyllarides latus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
assay at Scyllarides latus