In Nucleic Acids Research this week, researchers in Paris evaluate splicing factor and exon expression profiles across 11 normal human tissues using microarray data. After validating with RT-PCR, the team found that "the cerebellum, testis, and spleen had the largest proportion of differentially expressed alternative exons," they write, although they found that the splicing factor expression profiles in these tissues were similar to a more global gene expression pattern.

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