RPL7 and neuroblastoma: Immunoprecipitation and mass spectrometry of tau (both WT and P301L) binding proteins from SH-SY5Y neuroblastoma cells showed strong overlap of RBPs and ribosomal protein with the proteins identified in our study, including EWSR1, DDX5 & 17, hnRNPK, L, R and U, as well as ribosomal proteins RPL7, 8, 27 and 30 [10].