2F8T:
reference: A potential protein-RNA recognition event along the RISC-loading pathway from the structure of a. aeolicus argonaute with externally bound siRNA., Yuan YR, Pei Y, Chen HY, Tuschl T, Patel DJ, Structure. 2006 Oct;14(10):1557-65. PMID: 17027504

This OCA Structure page
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