4F5Y:
reference: Crystal structures of STING protein reveal basis for recognition of cyclic di-GMP., Shang G, Zhu D, Li N, Zhang J, Zhu C, Lu D, Liu C, Yu Q, Zhao Y, Xu S, Gu L, Nat Struct Mol Biol. 2012 Jun 24;19(7):725-7. doi: 10.1038/nsmb.2332. PMID: 22728660

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