4OKJ:
reference: Structure and Function of RNase AS, a Polyadenylate-Specific Exoribonuclease Affecting Mycobacterial Virulence In Vivo., Romano M, van de Weerd R, Brouwer FC, Roviello GN, Lacroix R, Sparrius M, van den Brink-van Stempvoort G, Maaskant JJ, van der Sar AM, Appelmelk BJ, Geurtsen JJ, Berisio R, Structure. 2014 May 6;22(5):719-30. doi: 10.1016/j.str.2014.01.014. Epub 2014 Apr, 3. PMID: 24704253

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