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Literature summary extracted from

  • Guggenheim, S.
    beta-Cystathionase (Salmonella) (1971), Methods Enzymol., 17B, 439-442.
No PubMed abstract available

General Stability

EC Number General Stability Organism
4.4.1.13 rapid loss of activity during dialysis Salmonella enterica subsp. enterica serovar Typhimurium

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.4.1.13 Cys substrate inhibition above 2 mM Salmonella enterica subsp. enterica serovar Typhimurium

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.4.1.13 0.22
-
L-cystathionine
-
Salmonella enterica subsp. enterica serovar Typhimurium
4.4.1.13 0.29
-
L-cysteine in presence of 10 mM dithiothreitol Salmonella enterica subsp. enterica serovar Typhimurium
4.4.1.13 0.8
-
L-cystine
-
Salmonella enterica subsp. enterica serovar Typhimurium

Organism

EC Number Organism UniProt Comment Textmining
4.4.1.13 Salmonella enterica subsp. enterica serovar Typhimurium
-
me-A15
-
4.4.1.13 Salmonella enterica subsp. enterica serovar Typhimurium me-A15
-
me-A15
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.4.1.13
-
Salmonella enterica subsp. enterica serovar Typhimurium

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.4.1.13 7.9
-
-
Salmonella enterica subsp. enterica serovar Typhimurium

Storage Stability

EC Number Storage Stability Organism
4.4.1.13 -15°C or 4°C, weeks to months, slow loss of activity Salmonella enterica subsp. enterica serovar Typhimurium

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.4.1.13 L-cystathionine + H2O
-
Salmonella enterica subsp. enterica serovar Typhimurium L-homocysteine + NH3 + pyruvate
-
?
4.4.1.13 L-cystathionine + H2O
-
Salmonella enterica subsp. enterica serovar Typhimurium me-A15 L-homocysteine + NH3 + pyruvate
-
?
4.4.1.13 L-cysteine + H2O 7.5% of the activity with cystathionine Salmonella enterica subsp. enterica serovar Typhimurium ?
-
?
4.4.1.13 L-cysteine + H2O 7.5% of the activity with cystathionine Salmonella enterica subsp. enterica serovar Typhimurium me-A15 ?
-
?
4.4.1.13 L-cystine + H2O 87% of the activity with cystathionine Salmonella enterica subsp. enterica serovar Typhimurium L-thiocysteine + pyruvate + NH3
-
?
4.4.1.13 L-cystine + H2O 87% of the activity with cystathionine Salmonella enterica subsp. enterica serovar Typhimurium me-A15 L-thiocysteine + pyruvate + NH3
-
?