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Expanding the MicroRNA Targeting Code: A Novel Type of Site with Centered Pairing

GSE22068 Danio rerio; Homo sapiens Non-coding RNA profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Other 11 samples Submitted 2010/06/25 Platform GPL10164Platform GPL9052
Summary
We present “centered sites,” a class of microRNA target sites that lacks both perfect seed pairing and 3'-compensatory pairing and instead has 11–12 contiguous Watson–Crick pairs to the center of the microRNA. In elevated Mg2+, centered sites impart mRNA cleavage, but in cells, centered sites repress protein output without consequential Agronaute-catalyzed cleavage. Our study also identified novel extensively paired sites that are cleavage substrates in cultured cells and human brain. This expanded repertoire of cleavage targets and the identification of the centered site type help explain why central regions of many microRNAs are evolutionarily conserved.
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Also filed as BioProject PRJNA128943 and SRA study SRP002640. Searching any of these in the dataset finder brings you back here.

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