title: Sulfur 2p photoelectron spectrum of Limulus oxyhemocyanin. Reply to observations on the ESCA spectra of plastocyanins.
mesh_terms: D006433:Hemocyanins; D006737:Horseshoe Crabs; D010940:Plant Proteins; D010970:Plastocyanin; D013057:Spectrum Analysis
chemical_list: D010940:Plant Proteins; D006433:Hemocyanins; D010970:Plastocyanin