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Literature summary extracted from

  • Usuda, Y.; Shimaoka, M.; Kawasaki, H.; Utagawa, T.
    Expression of the guanosine-inosine kinase gene from Exiguobacterium acetylicum in Corynebacterium ammoniagenes and phosphorylation of inosine to produce inosine 5'-monophosphate (2011), World J. Microbiol. Biotechnol., 27, 709-712.
    View publication on PubMed

Application

EC Number Application Comment Organism
2.7.1.73 synthesis the recombinant strain, which expresses gene gsk and has both inosine kinase activity and ATP-regenerating activity, is used to induce the phosphorylation of inosine to produce inosine 5'-monophosphate, which is widely used as a flavor enhancer Exiguobacterium acetylicum

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.7.1.73 gene gsk, recombinant expression in Corynebacterium ammoniagenes ATP-regenerating strain ATCC 21477, the Escherichia coli trp promoter proves to be most efficient with regard to inducing the expression of gsk, as compared to tac promoter Exiguobacterium acetylicum

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.1.73 Mg2+ required Exiguobacterium acetylicum

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.7.1.73 ATP + guanosine Exiguobacterium acetylicum
-
ADP + GMP
-
?
2.7.1.73 ATP + inosine Exiguobacterium acetylicum
-
ADP + IMP
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.7.1.73 Exiguobacterium acetylicum
-
gene gsk
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.1.73 ATP + guanosine
-
Exiguobacterium acetylicum ADP + GMP
-
?
2.7.1.73 ATP + inosine
-
Exiguobacterium acetylicum ADP + IMP
-
?

Synonyms

EC Number Synonyms Comment Organism
2.7.1.73 guanosine-inosine kinase
-
Exiguobacterium acetylicum

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.7.1.73 30
-
assay at Exiguobacterium acetylicum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.1.73 7.5
-
assay at Exiguobacterium acetylicum

Cofactor

EC Number Cofactor Comment Organism Structure
2.7.1.73 ATP
-
Exiguobacterium acetylicum