title: Penicillamine deprotonations and interactions with copper ions.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002942:Circular Dichroism; D003300:Copper; D004151:Dipeptides; D006863:Hydrogen-Ion Concentration; D010396:Penicillamine; D011522:Protons; D012996:Solutions; D013053:Spectrophotometry; D013438:Sulfhydryl Compounds; D013816:Thermodynamics
chemical_list: D004151:Dipeptides; D011522:Protons; D012996:Solutions; D013438:Sulfhydryl Compounds; D003300:Copper; D010396:Penicillamine