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Literature summary for 1.8.1.13 extracted from

  • Kim, J.; Copley, S.D.
    The orphan protein bis-?-glutamylcystine reductase joins the pyridine nucleotide disulfide reductase family (2013), Biochemistry, 52, 2905-2913.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
-
Halobacterium salinarum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.1
-
bis-gamma-glutamylcystine pH 6.7, temperature not specified in the publication Halobacterium salinarum

Organism

Organism UniProt Comment Textmining
Halobacterium salinarum Q9HSN0
-
-
Halobacterium salinarum NRC 1 Q9HSN0
-
-

Purification (Commentary)

Purification (Comment) Organism
both native enzyme and recombinant enzyme, from inclusion bodies Halobacterium salinarum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
bis-gamma-glutamylcystine + NADPH + H+
-
Halobacterium salinarum 2 gamma-glutamylcysteine + NADP+
-
?
bis-gamma-glutamylcystine + NADPH + H+
-
Halobacterium salinarum NRC 1 2 gamma-glutamylcysteine + NADP+
-
?
additional information enzyme is annotated as mercuric reductase. Enzyme that is expressed in Escherichia coli and refolded from inclusion bodies has robust bis-gamma-glutamylcystine reductase activity but no mercuric reductase activity Halobacterium salinarum ?
-
?
additional information enzyme is annotated as mercuric reductase. Enzyme that is expressed in Escherichia coli and refolded from inclusion bodies has robust bis-gamma-glutamylcystine reductase activity but no mercuric reductase activity Halobacterium salinarum NRC 1 ?
-
?

Synonyms

Synonyms Comment Organism
GCR
-
Halobacterium salinarum

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
54
-
bis-gamma-glutamylcystine pH 6.7, temperature not specified in the publication Halobacterium salinarum

General Information

General Information Comment Organism
physiological function enzyme is a member of the pyridine nucleotide disulfide oxidoreductase family Halobacterium salinarum

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
49
-
bis-gamma-glutamylcystine pH 6.7, temperature not specified in the publication Halobacterium salinarum