Effects of the Sox17∆50/GFP mutation on SOX17 function in mouse embryonic liver development

To determine the role of specific cis-regulatory elements within the Sox17 endoderm-preferential TSS2 promoter, we generated Sox17∆50 mutant animals, crossed them to a Sox17GFPCre (a Sox17 null allele), and surveyed how this mutation affected Sox17 expression. Livers were isolated from E12.5 Sox17∆50/GFPCRe compound heterozygous and Sox17+/+ embryos (n = 4 of each genotype), RNA isolated, and bulk RNA-Seq performed.