A new, inherently flexible, predominantly α-helical RNA binding motif has been detected in two rather conserved ribosomal proteins. Comparative studies prompt the suggestion that these ribosomal proteins are the ancestors of this new helix-turn-helix fold, also found in homeodomains.
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Yonath, A., Franceschi, F. New RNA recognition features revealed in ancient ribosomal proteins. Nat Struct Mol Biol 4, 3–5 (1997). https://doi.org/10.1038/nsb0197-3
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DOI: https://doi.org/10.1038/nsb0197-3
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