Regulatory proteins that act as molecular switches. They control a wide range of biological processes including: receptor signaling, intracellular signal transduction pathways, and protein synthesis. Their activity is regulated by factors that control their ability to bind to and hydrolyze GTP to GDP. EC 3.6.1.-. (mesh:D019204)
| Synonym | Reference | Specificity |
| G proteins | Exact | |
| G protein | Exact |
| Identifier | Name | Relation |
| FPLX:G_12 | G_12 | isa |
| FPLX:G_q | G_q | isa |
| FPLX:G_s | G_s | isa |
| FPLX:G_i | G_i | isa |