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Literature summary for 3.2.1.147 extracted from

  • Pontoppidan, B.; Ekbom, B.; Eriksson, S.; Meijer, J.
    Purification and characterization of myrosinase from the cabbage aphid (Brevicoryne brassicae), a brassica herbivore (2001), Eur. J. Biochem., 268, 1041-1048.
    View publication on PubMed

General Stability

General Stability Organism
some loss of activity upon freezing Brevicoryne brassicae

Inhibitors

Inhibitors Comment Organism Structure
ascorbate 0.3 mM, strong activation Brevicoryne brassicae

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.41
-
sinigrin 37°C, pH 4.5 Brevicoryne brassicae
0.52
-
glucotropaeolin 37°C, pH 4.5 Brevicoryne brassicae

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
126000
-
sucrose density gradient sedimentation Brevicoryne brassicae

Organism

Organism UniProt Comment Textmining
Brevicoryne brassicae
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Brevicoryne brassicae

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
28
-
-
Brevicoryne brassicae

Storage Stability

Storage Stability Organism
4°C, stable for more than 6 months Brevicoryne brassicae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glucotropaeolin + H2O
-
Brevicoryne brassicae ?
-
?
p-nitrophenyl beta-D-glucopyranoside + H2O
-
Brevicoryne brassicae p-nitrophenol + D-glucose
-
?
sinigrin + H2O
-
Brevicoryne brassicae D-glucose + (1Z)-N-(sulfooxy)but-3-enimidothioic acid
-
?

Subunits

Subunits Comment Organism
dimer 2 * 57000-58000, SDS-PAGE Brevicoryne brassicae

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
hydrolysis of sinigrin Brevicoryne brassicae

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3 6 sinigrin 37°C, pH 4.5 Brevicoryne brassicae
22.8
-
glucotropaeolin 37°C, pH 4.5 Brevicoryne brassicae

pI Value

Organism Comment pI Value Maximum pI Value
Brevicoryne brassicae isoelectric focusing, pH-range 3-9
-
4.9