Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:6.3.2.3 (
glutathione synthetase
)
678
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Glutathione synthetase was purified about 60-fold with 8.5% of activity yield from the cell extracts of Escherichia coli C600 cells transformed with a recombinant plasmid for the
glutathione synthetase
gene of E. coli B. The purified enzyme had a Mr of 152,000 and was composed of four identical subunits each with a Mr of 38,000. The Km values of the enzyme for gamma-glutamylcysteine, glycine, and ATP were 2.6, 2.0, and 1.8 mM, respectively. The enzyme was most active at pH 8.5 and at 45 degrees C and required divalent cations such as Mg2+,
Mn2+
, and Co2+ for activity. The activity was inhibited by oxidized glutathione (Ki = 4.4 mM). Reduced glutathione showed no effect on
glutathione synthetase
activity.
...
PMID:Purification and characterization of glutathione synthetase from Escherichia coli B. 638 79
