BCR (also known as breakpoint cluster region) encodes a phosphoprotein that has serine/threonine kinase activity. The human c-ABL oncogene is translocated from chromosome 9 to a region on chromosome 22 (associated with BCR) in chronic myelocytic leukemia. In classical t(9;22) translocation, as observed in chronic granulocytic leukemia (CGL), a hybrid DNA unit is produced comprising the BCR gene product plus the translocated c-ABL gene from chromosome 9. The BCR-ABL hybrid protein (p210) is formed that displays increased tyrosine kinase activity. A similar DNA rearrangement of the p210 protein is also found in cases of Philadelphia-positive acute lymphoblastic leukemia (ALL).
In classical t(9;22) translocation, as observed in chronic granulocytic leukemia (CGL), a hybrid DNA unit is produced, including a rearranged PHL gene, previously known as bcr (breakpoint cluster region) plus the translocated c-abl gene from chromosome 9: a hybrid bcr-abl
Molecular and cellular biology, 7(5), 1955-1960 (1987-05-01)
In chronic myelocytic leukemia, the human c-abl oncogene is translocated from chromosome 9 to a region on chromosome 22 designated as the breakpoint cluster region (bcr) (A. de Klein, A. Guerts van Kessel, G. Grosveld, C. R. Bartram, A. Hagemeyer
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