Here we make use of whole-transcriptome RNA sequencing (RNA-seq) data from seven previously published studies of PTCL primary tumors and cell lines (38, –, 44), as well as cell line RNA-seq data from our own laboratory, to broadly screen for virus association, investigate viral gene expression profiles, and determine the properties of reconstructed TCR and BCR repertoires. Here, BCR is linked to mature T-cell and NK-cell non-Hodgkin lymphoma.