7CAY:
reference: Crystal structure of XCC3289 from Xanthomonas campestris: homology with the N-terminal substrate-binding domain of Lon peptidase., Singh R, Deshmukh S, Kumar A, Goyal VD, Makde RD, Acta Crystallogr F Struct Biol Commun. 2020 Oct 1;76(Pt 10):488-494. doi:, 10.1107/S2053230X20011875. Epub 2020 Sep 16. PMID: 33006577

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