Natural variation of the amino-terminal glutamine-rich domain in Drosophila argonaute2 is not associated with developmental defects.

The Drosophila argonaute2 (ago2) gene plays a major role in siRNA mediated RNA silencing pathways.Unlike mammalian Argonaute proteins, the Drosophila protein has an unusual amino-terminal domain made up largely of multiple copies of glutamine-rich repeats (GRRs).We report here that the ago2 locus produces an alternative transcript that encodes a pu

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