5ZB6:
reference: Structural characterization of a novel KH-domain containing plant chloroplast endonuclease., Rout AK, Singh H, Patel S, Raghvan V, Gautam S, Minda R, Rao BJ, Chary KVR, Sci Rep. 2018 Sep 13;8(1):13750. doi: 10.1038/s41598-018-31142-w. PMID: 30214061

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