3Q6B:
reference: High-resolution structure of a new crystal form of BamA POTRA4-5 from Escherichia coli., Zhang H, Gao ZQ, Hou HF, Xu JH, Li LF, Su XD, Dong YH, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Jul 1;67(Pt, 7):734-8. Epub 2011 Jun 23. PMID: 21795783

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