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Literature summary for 4.4.1.13 extracted from

  • Tateishi, M.; Suzuki, S.; Shimizu, H.
    Cysteine conjugate beta-lyase in rat liver. A novel enzyme catalyzing formation of thiol-containing metabolites of drugs (1978), J. Biol. Chem., 253, 8854-8859.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
hydroxylamine
-
Rattus norvegicus
KCN no efffect Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.5
-
2,4-dinitrophenyl-L-cysteine
-
Rattus norvegicus

Metals/Ions

Metals/Ions Comment Organism Structure
additional information MgCl2 Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
kidney
-
Rattus norvegicus
-
liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Rattus norvegicus
0.0314
-
-
Rattus norvegicus

Storage Stability

Storage Stability Organism
-20°C, 10 days, no loss of activity Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(S)-2,4-dinitrophenyl-L-cysteine
-
Rattus norvegicus 2,4-dinitrobenzenethiol + pyruvate + NH3
-
?
2,4-dinitrophenyl-L-cysteine + H2O
-
Rattus norvegicus 2,4-dinitrobenzenethiol + pyruvate + NH3
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.6
-
-
Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
5.5 8
-
Rattus norvegicus

Cofactor

Cofactor Comment Organism Structure
additional information no cofactor requirement Rattus norvegicus
pyridoxal 5'-phosphate no effect Rattus norvegicus