2P4B:
reference: Crystal structure of RseB and a model of its binding mode to RseA., Kim DY, Jin KS, Kwon E, Ree M, Kim KK, Proc Natl Acad Sci U S A. 2007 May 22;104(21):8779-84. Epub 2007 May 11. PMID: 17496148

This OCA Structure page
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