tissues, cell types, and stages within development. There are seven groups of Sox genes that are classified on their amino acid sequence and genomic structure. Sox17, Sox7, and Sox18 are in the Sox group F. Genes are grouped into this family if they contain HMG domain levels with strong amino acid similarities to the HMG domain of SRY. The SoxF subgroup has a critical role in the differentiation of different cell types, which includes visceral and definitive endoderm and hematopoietic cells. The SoxF