2OFQ:
reference: NMR structure of a complex between the VirB9/VirB7 interaction domains of the pKM101 type IV secretion system., Bayliss R, Harris R, Coutte L, Monier A, Fronzes R, Christie PJ, Driscoll PC, Waksman G, Proc Natl Acad Sci U S A. 2007 Jan 30;104(5):1673-8. Epub 2007 Jan 23. PMID: 17244707

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