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. 2003 Jul 23;23(16):6638–6650. doi: 10.1523/JNEUROSCI.23-16-06638.2003

Figure 5.

Figure 5.

Regulated L1 expression by transfected murine fibroblasts under control of a tetracycline derivative. A, As detected by immunocytochemistry, neither parental fibroblasts (L1-) nor L1-transfected fibroblasts (L1+) in the presence of doxycycline express L1. In the absence of doxycycline, L1-transfected fibroblasts were L1+. B, As detected by immunoblotting, L1 expression was seen in transfected fibroblasts in the absence of doxycycline but not in parental cells. The two L1 bands are detected at 220 and 160 kDa.