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The drug SB203580 potentiates immunity gene expression. S2* cells were treated with LPS and SB203580 as indicated. Total RNA was isolated and assayed by Northern blotting (top). Control experiments designed to examined RNA loading were performed by using a ribosomal protein rp49 probe. The level of immunity gene mRNA expression relative to that of rp49, determined by quantitation of the hybridization signals, is presented at the bottom.
