Hi, Colleagues, I need some help. I am trying to determine the cytoplamic CD22 in B-Lymphocytes using Caltag's FIX &PERM reagent. Since CD22 also expresses on the surface of B-Lymphocytes, how to find a method which only measures cytoplasmic not surface CD22? Also, how can I confirm that I am measuring cytoplasmic CD22? Thanks. Qing Li, Ph.D. NTTD Department South Bend Medical Foundation South Bend, IN ----------
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