TCRBV repertoire of four HCL patients during active disease. The results are expressed as percentage of CD3⁺cells. For specific MoAbs see Materials and Methods. The results obtained for BV2, BV3, and BV17 were confirmed by other MoAbs detecting the same TCRBV phenotype. For comparison, the TCRBV repertoire obtained from five healthy donors is given as mean ± SD for each BV family (gray bars, lower part of each subfigure).