(Stratagene, Agilent Technologies, Santa Clara, CA) was used to introduce
alterations into FLAG-human GPR84-Gαi2 or FLAG-mouse
GPR84-Gαi2. Primers utilized for mutagenesis were
provided by MWG Operon (Acton, UK). Template DNA was digested with
DpnI to leave only the newly synthesized mutated plasmid, and sequencing
was carried out to confirm the introduction of the alterations.