FOXO4 encodes a member of the O class of winged helix/forkhead transcription factor family. Proteins encoded by this class are regulated by factors involved in growth and differentiation indicating they play a role in these processes. A translocation involving FOXO4 on chromosome X and the homolog of the Drosophila trithorax gene, encoding a DNA binding protein, located on chromosome 11 is associated with leukemia. Multiple transcript variants encoding different isoforms have been found for FOXO4. FOXO4 (Forkhead Box O4) is a Protein Coding gene. Diseases associated with FOXO4 include Balloon Cell Malignant Melanoma and Sarcomatoid Squamous Cell Skin Carcinoma. Among its related pathways are AGE/RAGE pathway and RET signaling.