Activating Compound | Comment | Organism | Structure |
---|---|---|---|
cAMP | PI 3-kinase is activated in response to cAMP or IGF-I, the PI 3-kinase activity bound to its p85 regulatory subunit increases by 1.7fold. cAMP-dependent PI 3-kinase activation plays an important role in the increase in cyclin D1 translation. In contrast, IGF-I-dependent PI 3-kinase activation is required for the increase in cyclin D1 mRNA levels and degradation of p27Kip1 | Rattus norvegicus | |
IGF-I | PI 3-kinase is activated in response to cAMP or IGF-I. cAMP-dependent PI 3-kinase activation plays an important role in the increase in cyclin D1 translation. In contrast, IGF-I-dependent PI 3-kinase activation is required for the increase in cyclin D1 mRNA levels and degradation of p27Kip1 | Rattus norvegicus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
LY294002 | - |
Rattus norvegicus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | - |
Rattus norvegicus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rattus norvegicus | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
FRTL-5 cell | thyroid follicular cell line | Rattus norvegicus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate | - |
Rattus norvegicus | ADP + 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate | - |
? | |
ATP + 1-phosphatidyl-1D-myo-inositol 4-phosphate | - |
Rattus norvegicus | ADP + 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate | - |
? | |
additional information | a p110alpha/beta-subunit binds to a p85 regulatory subunit, and this heterodimer is recruited to the membrane through the association with phosphotyrosyl proteins, leading to production of phosphatidylinositol 3,4,5-triphosphate, PIP3, followed by activation of downstream signal pathway(s) | Rattus norvegicus | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
heterodimer | a p110alpha/beta-subunit binds to a p85 regulatory subunit, and this heterodimer is recruited to the membrane through the association with phosphotyrosyl proteins, leading to production of phosphatidylinositol 3,4,5-triphosphate, PIP3, followed by activation of downstream signal pathway(s) | Rattus norvegicus |
Synonyms | Comment | Organism |
---|---|---|
PI 3-kinase | - |
Rattus norvegicus |
PI3K | - |
Rattus norvegicus |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
assay at | Rattus norvegicus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | - |
assay at | Rattus norvegicus |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ATP | - |
Rattus norvegicus |
General Information | Comment | Organism |
---|---|---|
physiological function | PI 3-kinase activated in response to cAMP or IGF-I stimulus plays important roles in increasing the translation rate or mRNA levels of cyclin D1, respectively. Activation of PI 3-kinase in response to cAMP or IGF-I are essential for marked increases in G1 CDK activities and DNA synthesis. cAMP-dependent PI 3-kinase activation plays an important role in the increase in cyclin D1 translation. In contrast, IGF-I-dependent PI 3-kinase activation is required for the increase in cyclin D1 mRNA levels and degradation of p27Kip1 | Rattus norvegicus |