4O6T:
reference: Replacing the Axial Ligand Tyrosine 75 or its Hydrogen Bond Partner Histidine 83 Minimally Affects Hemin Acquisition by the Hemophore HasAp from <i>Pseudomonas aeruginosa</i>, Kumar R, Matsumura H, Lovell SW, Yao H, Rodriguez JC, Battaile KP, Moenne-Loccoz P, Rivera M, Biochemistry. 2014 Mar 13. PMID: 24625274

This OCA Structure page
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