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Western blot analysis of integrin β1 expression in native human cells and tissues: A549 (lane 1) LNCaP (lane 2), MDA-MB-231 (lane 3) breast (lane 4), lung (lane 5), and skin (lane 6). The blot was probed with mouse monoclonal anti-Integrin β1 (IM0321) at 1:1000 dilution.