The B cell receptor signaling pathway (BCR) converted to a DAG. In case of nodes with multiple genes, the most differentially expressed between groups of patients defined in y1 (acute lymphocytic leukemia patients with BCR/ABL gene rearrangement) and y2 (acute lymphocytic leukemia patients with BCR/ABL gene rearrangement) matrices.
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Massa, M.S., Chiogna, M., Romualdi, C. (2010). Gene set analysis exploiting the topology of a pathway. BMC Systems Biology, 4:121 https://bmcsystbiol.biomedcentral.com/articles/10.1186/1752-0509-4-121