The human tyrosine kinase gene (FER) maps to chromosome 5 and is deleted in myeloid leukemias with a del(5q).
A novel member of the SRC tyrosine kinase gene family was recently isolated and characterized (Hao et al., 1989). This FES/FPS-related gene, named FER, lacks the transmembrane and extracellular domains which characterize tyrosine kinases with receptor function. Expression of FER in a wide range of cell types indicates a general role in intracellular signalling or differentiation processes. We have now mapped FER to chromosome 5q14----q23 using in situ hybridization techniques and suggest a more precise location within bands 5q21----q22. This region lies adjacent to a complex domain of growth factors and receptors, many involved in regulation of haematopoiesis. FER maps within a critical segment frequently deleted from chromosome 5 in patients with acute myeloid leukemia or myelodysplastic syndromes and was shown to be deleted in two such patients. It also maps close to the familial polyposis coli locus at 5q22.
Department of Pathology, Children's Hospital of Los Angeles, CA.
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C
Morris
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N
Heisterkamp
Q L
QL
Hao
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JR
Testa
J
J
Groffen
D002872:Chromosome Deletion; D002874:Chromosome Mapping; D002895:Chromosomes, Human, Pair 5; D004247:DNA / Q000235:genetics; D015342:DNA Probes; D006801:Humans; D007951:Leukemia, Myeloid / Q000235:genetics*; D009693:Nucleic Acid Hybridization; D011505:Protein-Tyrosine Kinases / Q000235:genetics*; D011518:Proto-Oncogene Proteins / Q000235:genetics*; D051578:Proto-Oncogene Proteins c-fes
D015342:DNA Probes; D011518:Proto-Oncogene Proteins; D004247:DNA; D011505:Protein-Tyrosine Kinases; C496645:FES protein, human; D051578:Proto-Oncogene Proteins c-fes