Krueppel-like factor 17 (Klf17)

Transcription repressor that binds to the promoter of target genes and prevents their saying. Acts as a negative regulator of epithelial-mesenchymal transition and metastasis in breast cancer.

Specifically binds the 5'-CACCC-3' sequence in the promoter of ID1, a key metastasis regulator in breast cancer, and repress its own expression. Might be a germ cell-specific transcription factor that plays important roles in spermatid differentiation and oocyte development.