2YKF:
reference: The sensor region of the ubiquitous cytosolic sensor kinase, PdtaS, contains PAS and GAF domain sensing modules., Preu J, Panjikar S, Morth P, Jaiswal R, Karunakar P, Tucker PA, J Struct Biol. 2012 Feb;177(2):498-505. Epub 2011 Nov 17. PMID: 22115998

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