What's driving specific patterns of gene expression among cell types?

Providing another tool to help to understand gene regulation on a global scale, a nationwide research team has identified and mapped 55,000 enhancers, short regions of DNA that act to enhance or boost the expression of genes. The map, which will be published March 18 in the advance on-line edition of the journal Nature, will help scientists understand how cells control expression of genes specific to their particular cell type.

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