2RKQ:
reference: Crystal structure of Drosophila PGRP-SD suggests binding to DAP-type but not lysine-type peptidoglycan., Leone P, Bischoff V, Kellenberger C, Hetru C, Royet J, Roussel A, Mol Immunol. 2008 May;45(9):2521-30. Epub 2008 Mar 4. PMID: 18304640

This OCA Structure page
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