in addition to the previously reported p210 and p190 abl-related proteins , a novel mr 53,000 protein was found to undergo phosphorylation at serine and tyrosine in immune complex kinase assays of two blast crisis cml cell lines ( k562 and em2 ) and in samples from blast crisis patients in which p210bcr-abl was detected .
C0031715
phosphorylation
C0033681
tyrosine