3SY8:
reference: Structural insights into the regulatory mechanism of the response regulator RocR from Pseudomonas aeruginosa in cyclic Di-GMP signaling., Chen MW, Kotaka M, Vonrhein C, Bricogne G, Rao F, Chuah ML, Svergun D, Schneider G, Liang ZX, Lescar J, J Bacteriol. 2012 Sep;194(18):4837-46. doi: 10.1128/JB.00560-12. Epub 2012 Jun, 29. PMID: 22753070

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