4XGA:
reference: Structural basis for the interaction of BamB with the POTRA3-4 domains of BamA., Chen Z, Zhan LH, Hou HF, Gao ZQ, Xu JH, Dong C, Dong YH, Acta Crystallogr D Struct Biol. 2016 Feb;72(Pt 2):236-44. doi:, 10.1107/S2059798315024729. Epub 2016 Jan 22. PMID: 26894671

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