5COS:
reference: Mechanistic implications of the unique structural features and dimerization of the cytoplasmic domain of the Pseudomonas sigma regulator, PupR., Jensen JL, Balbo A, Neau DB, Chakravarthy S, Zhao H, Sinha SC, Colbert CL, Biochemistry. 2015 Aug 27. PMID: 26313375

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