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Fig. 1. Western blot analysis of CXCR4 in cultured hippocampal neurons. Cultured neurons and rat brain membrane homogenates were immunoblotted with anti-CXCR4 antibody. The antibody revealed a 45 kDa band in both cultured neurons and rat brain samples, corresponding to the expected molecular mass for CXCR4. Molecular weight markers are indicated on the right.