Zinc finger protein SNAI2 is a protein that in humans is encoded by the SNAI2 gene.
This gene encodes a member of the Snail superfamily of C2H2-type zinc finger transcription factors. The encoded protein acts as a transcriptional repressor that binds to E-box motifs and is also likely to repress E-cadherin transcription in breast carcinoma. This protein is involved in epithelial-mesenchymal transitions and has antiapoptotic activity. It regulates differentiation and migration of neural crest cells along with other genes (e.g. FOXD3, SOX9 and SOX10, BMPs) in embryonic life. Mutations in this gene may be associated with sporadic cases of neural tube defects.