4V7J:
reference: The structural basis for mRNA recognition and cleavage by the ribosome-dependent endonuclease RelE., Neubauer C, Gao YG, Andersen KR, Dunham CM, Kelley AC, Hentschel J, Gerdes K, Ramakrishnan V, Brodersen DE, Cell. 2009 Dec 11;139(6):1084-95. PMID: 20005802

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