Problem-solving test: signal transduction in Philadelphia chromosome positive leukemia cells.

Terms to be familiar with before you start to solve the test: reciprocal translocation, proto-oncogene, gene expression, c-Abl, tyrosine protein kinases, transmembrane protein, G protein, Src protein, malignant transformation, transfection, immunoprecipitation, pre-immune serum, [γ-(32)P]ATP, cAMP, SDS-polyacrylamide gel electrophoresis, autoradiography, Western blot (immunoblot), co-immunoprecipitation, expression vector, cDNA, transient transfection, reporter gene, reporter plasmid, promoter, Ras protein, transformed foci, extracellular signal-regulated kinase.