3KM5:
reference: STRUCTURE DETERMINATION AND ANALYSIS OF A HEMOLYTIC GINGIPAIN ADHESIN DOMAIN FROM PORPHYROMONAS GINGIVALIS., Li N, Yun P, Nadkarni MA, Ghadikolaee NB, Nguyen KA, Lee M, Hunter N, Collyer CA, Mol Microbiol. 2010 Mar 10. PMID: 20233299

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