The reaction of Re(CO)(3)(H(2)O)(3)(+) with hen egg lysozyme in aqueous solution results in a single covalent adduct; single crystal X-ray diffraction shows that the rhenium tricarbonyl cation binds to His15 in two significantly populated rotamer conformations.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5110033PMC
http://dx.doi.org/10.1039/b923688kDOI Listing

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