MBOAT7 and Hepatic steatosis: Given the fact that the rs641738 polymorphism is located in exon 1 of the TMC4 gene, and we unexpectedly found that Mboat7 ASO treatment also reduces Tmc4 expression (Figure 3B,E), we wanted to examine whether alteration in Tmc4 may also be a key regulator of hepatic steatosis.