1GPQ:
reference: Structure and evolution of the Ivy protein family, unexpected lysozyme inhibitors in Gram-negative bacteria., Abergel C, Monchois V, Byrne D, Chenivesse S, Lembo F, Lazzaroni JC, Claverie JM, Proc Natl Acad Sci U S A. 2007 Apr 10;104(15):6394-9. Epub 2007 Apr 3. PMID: 17405861

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