Additional file 4: Figure S4.

Sox2 and Foxp1 expression was not altered in Sox9Δ/Δ tracheal epithelium. Immunofluorescence staining for Sox2 and Foxp1 did not show any qualitative or quantitative alterations of expression of these transcriptional factors in the mutant trachea.

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Turcatel et al. BMC Biology 2013 11:117   doi:10.1186/1741-7007-11-117