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Literature summary for 4.4.1.13 extracted from

  • Ravanel, S.; Job, D.; Douce, R.
    Purification and properties of cystathionine beta-lyase from Arabidopsis thaliana overexpressed in Escherichia coli (1996), Biochem. J., 320, 383-392.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
overexpression in Escherichia coli Arabidopsis thaliana

Inhibitors

Inhibitors Comment Organism Structure
aminoethoxyvinylglycine irreversible Arabidopsis thaliana
iodoacetamide
-
Arabidopsis thaliana
L-alpha-(2-aminoethoxyvinyl)glycine
-
Arabidopsis thaliana
NEM
-
Arabidopsis thaliana
rhizobitoxine
-
Arabidopsis thaliana

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
46000
-
4 * 46000, SDS-PAGE Arabidopsis thaliana
170000
-
gel filtration Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
cystathionine + H2O Arabidopsis thaliana enzyme is involved in methionine biosynthesis ?
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
var. columbia
-

Purification (Commentary)

Purification (Comment) Organism
-
Arabidopsis thaliana

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
24.5
-
-
Arabidopsis thaliana

Storage Stability

Storage Stability Organism
-80°C, stable for several months Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cystathionine + H2O enzyme is involved in methionine biosynthesis Arabidopsis thaliana ?
-
?
L-cystathionine + H2O
-
Arabidopsis thaliana L-homocysteine + NH3 + pyruvate
-
?
L-djenkolate + H2O
-
Arabidopsis thaliana pyruvate
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 46000, SDS-PAGE Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Arabidopsis thaliana

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
60 90 60°C: optimum, 90°C: 17% of maximal activity Arabidopsis thaliana

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
15 min, 90% loss of activity Arabidopsis thaliana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate each subunit of the tetramer is associated with one molecule of pyridoxal 5'-phosphate. Schiff-base formation between the cofactor and the holoenzyme occurs at Lys278 Arabidopsis thaliana