Using a knock-in mouse model of Brugada syndrome (BrS) with an SCN5A mutation identified in multiple BrS families (Scn5aG1746R/+), a team of scientists from various research institutions evaluated the effects of upregulation of MOG1 (ran guanine nucleotide release factor, RanGNRF) via adeno-associated virus serotype 9 (AAV9) vector delivery on BrS features.