GNAT3 and susceptibility to pneumonia measurement: Here, we investigated the role of TAS2R signaling in Staphylococcus aureus-induced murine pneumonia via wild-type (WT) and several mutants (mTas2r104-/-/105-/-, mTas2r105-/-/114-/-, mTas2r104-/-/105-/-/114-/-, Gnat3-/- and Gnat3-/–mTas2r104-/-/105-/-) mice.