The crystal structure of l-Crel offers the first view of an intron-encoded endonuclease. The structure differs from known endonuclease structures, revealing an elongated saddle shaped molecule ideally suited for binding a long DNA sequence.
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Aggarwal, A. Homing in on intron-encoded endonucleases. Nat Struct Mol Biol 4, 423–424 (1997). https://doi.org/10.1038/nsb0697-423
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DOI: https://doi.org/10.1038/nsb0697-423
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