4TY0:
reference: Structure-Guided Reprogramming of Human cGAS Dinucleotide Linkage Specificity., Kranzusch PJ, Lee AS, Wilson SC, Solovykh MS, Vance RE, Berger JM, Doudna JA, Cell. 2014 Aug 28;158(5):1011-21. doi: 10.1016/j.cell.2014.07.028. Epub 2014 Aug , 14. PMID: 25131990

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