Fig. 1From: CD44 as a tumor biomarker and therapeutic targetStructure of CD44 gene. Human CD44 is encoded by 19 exons with the absence of exon 6. Pink color exons constantly encode CD44s. The middle gray color exons can be inserted by alternative splicing and form diverse CD44v. Full-length CD44, CD44s, CD44v3, CD44v6, CD44v9, CD44v4-10 and CD44v8-10 are displayed schematicallyBack to article page