6H9O:
reference: Structural Analysis of the Interaction between the Bacterial Cell Division Proteins FtsQ and FtsB., Kureisaite-Ciziene D, Varadajan A, McLaughlin SH, Glas M, Monton Silva A, Luirink R, Mueller C, den Blaauwen T, Grossmann TN, Luirink J, Lowe J, MBio. 2018 Sep 11;9(5). pii: mBio.01346-18. doi: 10.1128/mBio.01346-18. PMID: 30206170

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