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EPR, NMR and absorption spectroscopy studies of Ni(II) and Cu(II) complexes with Thr-Lys-Ala-Ala peptide in aqueous solution

✍ Scribed by G. Formicka-Kozlowska; H. Kozlowski; B. Jezowska-Trzebiatowska

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 459 KB
Volume: 25
Category: Article
ISSN: 0020-1693
DOI: 10.1016/s0020-1693(00)95683-4

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✦ Synopsis

iThe PMR, EPR and absorption spectroscopy methods have been used to propose the structure of Ni(II) and Cl&I)-Thr-Lys-Ala-Ala complexes formed in the aqueous solution over a broad pH range. i?he binding sites in tetrapeptide to both metal ions are shown to be the NH2-7&r, and three deprotonated nitrogens of peptide linkages. In the case of Ni(II) ions the cooperative interaction was observed.

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