TRBC1 and neoplasm: Alternatively, the ratios of γδ T to αβ T cells were calculated to be around 0.8–1.1 by measuring the reads per kilobase of transcript per million mapped reads (RPKM) values of the Tcrd and Tcrb constant regions, suggesting that the ratios of γδ T cells were equal to or even higher than those of αβ T cells in the tumor tissues (Figure 1B).