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Co-ordination of copper(II) ions by prolyl-α, β-dehydoamino acids: comparative studies and general considerations.
Autorzy
Rok wydania
1996
Czasopismo
Journal of the Chemical Society, Dalton Transactions
Strony
3265-3268
DOI
10.1039/DT9960003265
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Potentiometric and spectroscopic measurements and theoretical calculations have revealed that α,β-dehydroamino acid residues have a considerable effect on the co-ordination ability of an adjacent amide nitrogen towards Cu2+ ions. Also the side chain of such residues affects the stability constants and, in some cases, the binding mode of short peptides containing α,β-dehydroamino acid residues. The theoretical calculations showed that all dehydroamino acids except α,β-dehydroalanine tend to bend a peptide chain towards a turn conformation. This has a very strong impact on the co-ordination ability of a dehydropeptide ligand.
Adres publiczny
https://doi.org/10.1039/DT9960003265
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