mRNA analysis for HLy9-β. (A) Dot blot analysis of poly(A)⁺ RNA from different tissues using labeled HLy9-β and β-actin cDNA as probes. Autoradiography was scanned with a Bio-Profile densitometer (Vilber Loumart, Marne la Valleé, France). (B) Quantification of mRNA in different lymphoid tissues. Dot relative intensity as measured with Bio-1D Analysis Software (Vilber Loumart). (C) Northern blot analysis of HLy9-β.