Spectratypes of the T-cell repertoire within CD8α⁺β^high, CD8α⁺β^low, and CD8αα αβ T cells.

Histograms of the relative sizes of the PCR-amplified CDR3 region within CD8α⁺β^high, CD8α⁺β^low, and CD8αα αβ T cells in one donor are shown. The y-axis is relative quantity of RNA bearing the specific TCR Vβ. The x-axis represents the nucleotide length of the PCR-amplified TCR gene products.