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Literature summary for 2.7.1.73 extracted from

  • Combes, A.; Lefleuriel, J.; Le Floc'h, F.
    the inosine-guanosine kinase activity of mitochondria in tubers of Jerusalem artichoke (1989), Plant Physiol. Biochem., 27, 729-736.
No PubMed abstract available
Search for more literature for 2.7.1.73

Activating Compound

Activating Compound Comment Organism Structure
K+ increases activity, optimum concentration: 40 mM Helianthus tuberosus
Mg2+ reaction is dependent on presence of divalent cation Helianthus tuberosus

General Stability

General Stability Organism
very low stability Helianthus tuberosus

Inhibitors

Inhibitors Comment Organism Structure
guanosine inhibits phosphorylation of inosine Helianthus tuberosus
Inosine inhibits phosphorylation of guanosine Helianthus tuberosus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.014
-
 guanosine
-
 Helianthus tuberosus
0.07
-
 Inosine
-
 Helianthus tuberosus
1.45
-
 ATP ATP in form of MgATP2- Helianthus tuberosus

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrion intermembrane space Helianthus tuberosus 5739
-

Organism

Organism UniProt Comment Textmining
Helianthus tuberosus
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + guanosine
-
 Helianthus tuberosus ADP + GMP
-
 ?
ATP + inosine
-
 Helianthus tuberosus ADP + 5'-IMP
-
 ?
ATP + inosine
-
 Helianthus tuberosus ADP + IMP
-
 ?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8 7.6
-
 Helianthus tuberosus