PADI4 and hydrops fetalis: Whereas PADI3 is induced in response to Vitamin D Receptor and LEF1 (independent of β-Catenin activation) (Palmer et al., 2008), LEF1 ChIP-sequencing in HF progenitor cells identifies Padi4, but not Padi3, as a LEF1 target gene (Adam et al., 2018).