On activation of p53, Mdm2 is also activated, setting up a feedback loop. MAIT cells can also be activated through MR1-independent signaling. Enzymes can be either activated or inhibited by other molecules. Abilities can be manually activated and passively upgraded. Each receptor can be activated by several FGFs. When TSC2 is activated it inhibits mTORC1. PD-1 is a protein on the surface of activated T cells. After DNA damage, cell cycle checkpoints are activated. This process is activated by the p75 receptors. It may be activated by two mechanisms. The installations were simultaneously activated in the room and recorded. Passes are activated immediately upon purchase. Gastric chief cells are primarily activated by ACh. Wind shear alarm later activated again once more. This pathway is excessively activated in septic shock.