AF4/FMR2 family member 1 is a protein that in humans is encoded by the AFF1gene.[5][6][7][8] At its same location was a record for a separate PBM1 gene, which has since been withdrawn and considered an alias. It was previously known as AF4 (ALL1-fused gene from chromosome 4).[8]
The gene is a member of the AF4/FMR2 (AFF) family, a group of nuclear transcriptional activators which encourage RNA elongation. It is a component of the super elongation complex.[9] It is recognized as a proto-oncogene: chromosomal translocations associated with leukemia can fuse this gene with others like KMT2A, producing an uncontrolled activator protein.[5]
^Gu Y, Nakamura T, Alder H, Prasad R, Canaani O, Cimino G, Croce CM, Canaani E (November 1992). "The t(4;11) chromosome translocation of human acute leukemias fuses the ALL-1 gene, related to Drosophila trithorax, to the AF-4 gene". Cell. 71 (4): 701–8. doi:10.1016/0092-8674(92)90603-A. PMID1423625. S2CID6257922.
Frestedt JL, Hilden JM, Kersey JH (August 1996). "AF4/FEL, a gene involved in infant leukemia: sequence variations, gene structure, and possible homology with a genomic sequence on 5q31". DNA and Cell Biology. 15 (8): 669–78. doi:10.1089/dna.1996.15.669. PMID8769569.
Isnard P, Depetris D, Mattei MG, Ferrier P, Djabali M (December 1998). "cDNA cloning, expression and chromosomal localization of the murine AF-4 gene involved in human leukemia". Mammalian Genome. 9 (12): 1065–8. doi:10.1007/s003359900927. PMID9880680. S2CID29956410.
Felix CA, Hosler MR, Slater DJ, Megonigal MD, Lovett BD, Williams TM, Nowell PC, Spinner NB, Owens NL, Hoxie J, Croce CM, Lange BJ, Rappaport EF (December 1999). "Duplicated regions of AF-4 intron 4 at t(4;11) translocation breakpoints". Molecular Diagnosis. 4 (4): 269–83. doi:10.1016/S1084-8592(99)80002-2. PMID10671636.
Bursen A, Moritz S, Gaussmann A, Moritz S, Dingermann T, Marschalek R (August 2004). "Interaction of AF4 wild-type and AF4.MLL fusion protein with SIAH proteins: indication for t(4;11) pathobiology?". Oncogene. 23 (37): 6237–49. doi:10.1038/sj.onc.1207837. PMID15221006. S2CID9645787.