4FAY:
reference: Substrate channels revealed in the trimeric Lactobacillus reuteri bacterial microcompartment shell protein PduB., Pang A, Liang M, Prentice MB, Pickersgill RW, Acta Crystallogr D Biol Crystallogr. 2012 Dec;68(Pt 12):1642-52. doi:, 10.1107/S0907444912039315. Epub 2012 Nov 9. PMID: 23151629

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