Expression of sialyl 6-sulfo Le^x and related determinants on ConA- or TPA-treated human peripheral lymphocytes. Human peripheral lymphocytes were stimulated with 10 ng/mL TPA and 1 μg/mL ionomycin (middle panel) or with 5 μg/mL ConA (right panel) for 1 or 3 days. Each panel indicates 2-dimensional distribution of sialyl 6-sulfo Le^x (G152), conventional sialyl Le^x (CXLEX-1), CLA (HECA-452), and variant sialyl Le^x (2F3) with CD3.