title: Complexing of copper ion by ergothioneine.
mesh_terms: D003300:Copper / Q000032:analysis; D004578:Electron Spin Resonance Spectroscopy; D004880:Ergothioneine / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy; D013057:Spectrum Analysis
chemical_list: D003300:Copper; D004880:Ergothioneine