We analyzed the total proteome of CD4+ T cells isolated from WT mice, and cultured to perform a CRISPR/CAS9 edition of their genome, in order to introduce an OST sequence at the C-terminus of proteins of interest (LAT or UBASH3A, n=6 biological replicates in each case). Control CD4+ T cells , isolated and cultured in the same way, but not modified by CRISPR/CAS9, were also analyzed (CT, n=6 biological replicates), as well as CD4+ T cells which have undergone a smaller number of expansion cycles than long term CD4+ T cells (WT, n=2 biological replicates). Each sample was analyzed once by single run naoLC-MS, resulting in 20 raw files.