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PCA plot based on covariation of genes using the expression profiles of 48 Slc genes across 18 samples, which comprised RNA-Seq FPKM data for three brain regions. Ovals correspond to brain regions. W1, W2, W3: winners; C1, C2, C3: controls; VTA: ventral tegmental area, NAcc: nucleus accumbens; PFC: prefrontal cortex. The figure shows a distinct clustering of the three brain regions.
