FOXO4 Recombinant Monoclonal Antibody for ELISA FOXO4 (Forkhead box O4) is encoded by the FOXO4 gene located on the X chromosome. It is also known as AFX1 or MLLT7 (Myeloid/Lymphoid or Mixed-Lineage Leukemia (Trithorax Homolog, Translocated To, 7) and is