In the latter report, the critical γδ T cell subpopulation were Vδ1+ (rather than Vδ2+) T cells and Vδ1+ T cell counts as well as detectable/inducible ULBP3 expression both associated positively with disease control in CLL patients (47). The gene discussed is ULBP3; the disease is B-cell chronic lymphocytic leukemia.