IRX6 (Iroquois Homeobox 6) is a gene that encodes a transcription factor belonging to the Iroquois homeobox family, known for its role in early embryonic development. It plays a key part in the formation and patterning of organs and tissues, especially in the heart and craniofacial areas. Changes in IRX6 may be associated with developmental abnormalities and are of interest in research on congenital and craniofacial disorders.