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Literature summary for 2.7.1.20 extracted from

  • Chen, C.M.; Eckert, R.L.
    Phosphorylation of cytokinin by adenosine kinase from wheat germ (1977), Plant Physiol., 59, 443-447.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
ATP required for phosphorylation of adenosine and N6-delta2-isopentenyl-adenosine Triticum aestivum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0087
-
adenosine pH 7.0, 37ºC Triticum aestivum
0.031
-
N6-delta2-isopentenyl-adenosine pH 7.0, 37ºC Triticum aestivum

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ requirement Triticum aestivum
Mg2+ requirement Nicotiana tabacum

Organism

Organism UniProt Comment Textmining
Nicotiana tabacum
-
tobacco
-
Triticum aestivum
-
wheat
-

Purification (Commentary)

Purification (Comment) Organism
partial Triticum aestivum

Source Tissue

Source Tissue Comment Organism Textmining
callus
-
Nicotiana tabacum
-
germ
-
Triticum aestivum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + adenosine
-
Nicotiana tabacum ADP + AMP
-
?
ATP + adenosine
-
Triticum aestivum ADP + AMP 55% of AMP formed ?
ATP + ADP
-
Triticum aestivum ADP + ATP traces of ATP formed ?
ATP + AMP
-
Triticum aestivum ADP + ADP 45% of ADP formed ?
ATP + N6-delta2-isopentenyl-adenosine
-
Triticum aestivum ADP + N6-delta2-isopentenyl-adenosine 5'-phosphate
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Triticum aestivum
37
-
assay at Nicotiana tabacum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8 7.2 for adenosine and N6-delta2-isopentenyl-adenosine Triticum aestivum