RIC8B (RIC8 guanine nucleotide exchange factor B) is a molecular chaperone that specifically mediates the biosynthetic folding and maturation of nascent Gαs and Gαolf (G(olf)-alpha) G protein α-subunits prior to heterotrimeric G protein assembly 1. RIC8B functions as a chaperone for nucleotide-free Gα-subunit states and also possesses guanine nucleotide exchange factor (GEF) activity that stimulates GDP release and GTP binding 1. Unlike RIC8A, which serves as the dedicated chaperone for Gαi/Gαo, Gαq, and Gα12/Gα13 subfamilies, RIC8B has exclusive responsibility for Gαs/Gαolf protein maturation 2. RIC8B plays a critical role in olfactory signal transduction by promoting GNAL (Gαolf-alpha) folding, thereby facilitating cAMP accumulation in olfactory sensory neurons and supporting odorant receptor surface expression and function in heterologous cell systems 34. Additionally, RIC8B localizes to primary ciliary compartments and is required for ciliogenesis in retinal pigment epithelial cells 5. RIC8B expression is dynamically regulated during embryonic development and in specific brain regions, with CREB transcription factor playing a key role in controlling RIC8B gene transcription through CRE binding sites in the promoter region 6. Pathological relevance emerges from studies of pediatric encephalopathies, where pathogenic Gαo mutations abnormally gain interaction with RIC8B, causing its relocalization and disrupting G protein signaling balance, with interaction strength correlating with disease severity 2. RIC8B has been proposed as a therapeutic target for attenuating disease-causing G protein mutations 1.