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Literature summary for 4.1.1.22 extracted from

  • Furutani, A.; Harada, Y.; Shozen, K.; Yokoi, K.; Saito, M.; Satomi, M.
    Purification and properties of a histidine decarboxylase from Staphylococcus epidermidis TYH1 isolated from Japanese fish-miso (2014), Fish. Sci., 80, 93-101.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
NaCl 2 M, 50% residual activity, 4.3 M, residual activity is 80%, 69%, and 38% of that of the enzyme in NaCl-free conditions at pH 5.0, 5.5, 6.0, respectively Staphylococcus epidermidis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.1
-
L-histidine pH 4.8, 37°C Staphylococcus epidermidis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
121000
-
gel filtration Staphylococcus epidermidis

Organism

Organism UniProt Comment Textmining
Staphylococcus epidermidis B3Y006
-
-
Staphylococcus epidermidis TYH1 B3Y006
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Staphylococcus epidermidis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
32.75
-
pH 4.8, 37°C Staphylococcus epidermidis

Storage Stability

Storage Stability Organism
-30°C, stable for 7 days Staphylococcus epidermidis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-histidine
-
Staphylococcus epidermidis histamine + CO2
-
?
L-histidine
-
Staphylococcus epidermidis TYH1 histamine + CO2
-
?
additional information no substrates: lysine, arginine, tyrosine, tryptophan or ornithine Staphylococcus epidermidis ?
-
?
additional information no substrates: lysine, arginine, tyrosine, tryptophan or ornithine Staphylococcus epidermidis TYH1 ?
-
?

Subunits

Subunits Comment Organism
multimer putative alpha-chain of 27-30 kDa, beta-chain of 7-9 kDa, and a third 35-37 kDa band, SDS-PAGE Staphylococcus epidermidis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Staphylococcus epidermidis

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
83
-
83% of maximum activity Staphylococcus epidermidis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Staphylococcus epidermidis

pH Range

pH Minimum pH Maximum Comment Organism
4
-
about 50% of maximum activity Staphylococcus epidermidis
7
-
sharp decline in activiy above Staphylococcus epidermidis