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. 2013 Jan 10;8(1):e54070. doi: 10.1371/journal.pone.0054070

Figure 2. The expression profile of M2 protein and AcGFP-M2 fusion protein.

Figure 2

(A) Expression of AcGFP-M2 fusion protein in the presence or absence of amantadine. Experiment procedures are the same as described in a. Positions of M2 protein and AcGFP-M2 fusion protein are indicated by arrowheads. (B) Expression of M2 protein in the presence or absence of amantadine. Cells harboring pColdII(sp-4) m2 were cultured as described previously until O.D.600 reached 0.5–0.6 and incubated at 15°C for 45 to 60 mins. 1 mM IPTG was added to at 5-hr and the culture was divided into two, one of which contains 50 μM amantadine. Cells from 1.5 ml culture were collected at 0 hr, 1 hr, 3 hr, 5 hr, 7 hr, and 19 hr after induction and subjected to SDS-PAGE assay.