Catalytic Subunit | Regulatory Subunits | Substrate | Product | |
---|---|---|---|---|
Class 1A | p110α p110β p110δ |
p85α, p85β, p55α, p55γ, p50α | PI-4,5-P2 | PIP3 |
Class 1B | p110γ | p101, p84 | PI-4,5-P2 | PIP3 |
Class II | PIK3-C2α PIK3-C2β PIK3-C2γ |
PI-4-P PI |
PI-3,4-P2 PI-3-P |
|
Class III | VPS34 | p150 | PI | PI-3-P |