2MPW:
reference: The Intimin periplasmic domain mediates dimerisation and binding to peptidoglycan., Leo JC, Oberhettinger P, Chaubey M, Schutz M, Kuhner D, Bertsche U, Schwarz H, Gotz F, Autenrieth IB, Coles M, Linke D, Mol Microbiol. 2014 Oct 29. doi: 10.1111/mmi.12840. PMID: 25353290

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