Western Blot: 1/500 - 1/1000. Immunohistochemistry: 1/50 - 1/200. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
FKHR (for forkhead in rhabdomyosarcoma), FKHRL1, and AFX1 are members of a subfamily of the forkhead family of transcription factors. AFX1, also known as FoxO4, is expressed in a wide variety of tissues and, like other FKHR proteins, AFX1 contains a single forkhead domain and serineproline-rich region, which mediate DNA binding. AFX1-mediated transcriptional activation is regulated by the serine/threonine kinase Akt1, which phosphorylates AFX1 (in humans, this phosphorylation can occur at several sites, including Ser 197) and in turn, sequesters AFX1 in the cytosol, thereby blocking nuclear localization and DNA binding. Genetic mutations in FKHR genes, including the t(2,13) and t(1,3) translocations, are commonly found in alveolar rhabdomyosarcomas. Additionally, the t(x,11) translocation of the AFX1 gene, which involves the fusion of a serine-prolinerich sequence of AFX1 to the carboxyterminus of a truncated MLL, results in acute lymphocytic leukemia.Synonyms: Fork head domain transcription factor AFX1, Forkhead box protein O4