Figure 2.

Immunofluorescence staining of K19, K8, K18, and K7 in the K19 gene heterozygous and homozygous mutant mouse intestines. Frozen sections of the adult mice were fixed with methanol and stained with TROMA-3 (anti–K19), -1 (anti–K8), and -2 (anti–K18), and an anti–K7 mAb.