Complex formation of Cu(II) with ATP and aliphatic dipeptides in aqueous solution
作者： Ernst R. Werner , Bernd M. Rode
DOI: 10.1016/S0020-1693(00)81815-0
关键词: Ternary operation 、 Crystallography 、 Nucleotide 、 Aqueous solution 、 Stability constants of complexes 、 Proton 、 Dipeptide 、 Spectroscopy 、 Peptide 、 Inorganic chemistry 、 Chemistry
摘要: Abstract The formation of binary and ternary complexes was investigated by ESR spectroscopy in aqueous solutions Cu(2+), ATP the dipeptides glygly gly-L-pro at room temperature. Spectra stability constants two for each peptide. (GG)Cu(ATP)(3−), (GG)Cu(ATP)(4−), (GP)cu(ATP)(3−) (GP(Cu(ATP)(5−) were determined. Assuming that similar structure show spectra, some conclusions could be drawn about complexes. characteristic difference between is attributed to lack peptide proton gly-L-pro. At acidic pH Cu(2+) bound complexes, neutral basic or peptide-Cu-ATP
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