3S0H:
reference: Role of the MotB linker in the assembly and activation of the bacterial flagellar motor., O'Neill J, Xie M, Hijnen M, Roujeinikova A, Acta Crystallogr D Biol Crystallogr. 2011 Dec;67(Pt 12):1009-16. Epub 2011 Nov 5. PMID: 22120737

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