Mining the published single-cell NGS data (Kaminski/Rosas, Banovich, www.ipflcellatlas.org, (accessed on 15 December 2021)) of IPF lungs, we determined the CD274 mRNA expression in AT2s, aberrant basaloid, and KRT5-/KRT17+ epithelial cells. Here, KRT5 is linked to idiopathic pulmonary fibrosis.