FIG. 3.
Northern blot analysis of PTPLB gene expression. The membranes contained 2 μg each of high-quality polyadenylated mRNA isolated from the indicated human tissues and organs. Hybridization was done with the 32P-labeled DNA fragment of the PTPLB open reading frame (upper panels) and a β-actin probe as a control (lower panels). PBL, peripheral blood leukocytes.