4EMU: Crystal Structure Of Ligand Free Human Sting
reference: Structure of STING bound to cyclic di-GMP reveals the mechanism of cyclic dinucleotide recognition by the immune system., Shu C, Yi G, Watts T, Kao CC, Li P, Nat Struct Mol Biol. 2012 Jun 24;19(7):722-4. doi: 10.1038/nsmb.2331. PMID: 22728658

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