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Literature summary for 2.7.1.105 extracted from
- Purification and characterization of myocardial fructose-6-phosphate,2-kinase and fructose-2,6-bisphosphatase [published erratum appears in J Biol Chem 1989 Jan 25;264(3):1901] (1988), J. Biol. Chem., 263, 9027-9033.
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.07 | - |
beta-D-fructose 6-phosphate | pH 7.5, 30°C | Bos taurus |  |
| 0.26 | - |
ATP | - |
Bos taurus | |
| 0.26 | - |
ATP | pH 7.5, 30°C | Rattus norvegicus | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 55000 | - |
2 * 55000, SDS-PAGE | Rattus norvegicus |
| 118000 | - |
gel filtration | Bos taurus |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Bos taurus | - |
- |
- |
| Rattus norvegicus | - |
- |
- |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| phosphoprotein | phosphorylation site | Bos taurus |
| phosphoprotein | MW 58000 enzyme form | Bos taurus |
| phosphoprotein | phophorylation by cAMP-dependent protein kinase causes activation | Rattus norvegicus |
| phosphoprotein | phophorylation by cAMP-dependent protein kinase causes activation | Bos taurus |
| phosphoprotein | phosphorylation by protein kinase C causes activation | Bos taurus |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Bos taurus |
Reaction
| Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|
| ATP + beta-D-fructose 6-phosphate = ADP + beta-D-fructose 2,6-bisphosphate | bifunctional protein: 6-phosphofructo-2-kinase/fructose 2,6-bisphosphatase, reverse reaction catalysed by fructose 2,6-bisphosphatase: 3.1.3.46 | Rattus norvegicus | |
| ATP + beta-D-fructose 6-phosphate = ADP + beta-D-fructose 2,6-bisphosphate | bifunctional protein: 6-phosphofructo-2-kinase/fructose 2,6-bisphosphatase, reverse reaction catalysed by fructose 2,6-bisphosphatase: 3.1.3.46 | Bos taurus |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| heart | - |
Rattus norvegicus | - |
| heart | - |
Bos taurus | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 0.075 | - |
- |
Bos taurus |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| ATP + beta-D-fructose 6-phosphate | - |
Rattus norvegicus | ADP + beta-D-fructose 2,6-bisphosphate | - |
r | |
| ATP + beta-D-fructose 6-phosphate | - |
Bos taurus | ADP + beta-D-fructose 2,6-bisphosphate | - |
r | |
| additional information | also catalyses the degradation of fructose 2,6-bisphosphate (EC 3.1.3.46) | Rattus norvegicus | ? | - |
? | |
| additional information | also catalyses the degradation of fructose 2,6-bisphosphate (EC 3.1.3.46) | Bos taurus | ? | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| dimer | - |
Bos taurus |
| dimer | 2 * 55000, SDS-PAGE | Rattus norvegicus |
| More | - |
Rattus norvegicus |
| More | two isozymes: 58000 Da and 54000 Da, SDS-Page | Bos taurus |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 30 | - |
assay at | Rattus norvegicus |
| 30 | - |
assay at | Bos taurus |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 6 | - |
of 54000 Da and 58000 Da isozymes | Bos taurus |
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