| Literature DB >> 1544442 |
I P Gerothanassis1, N Birlirakis, T Karayannis, V Tsikaris, M Sakarellos-Daitsiotis, C Sakarellos, B Vitoux, M Marraud.
Abstract
The ionization state of Leu-enkephalin in DMSO and MeCN/DMSO (4/1) solution was studied by the combined use of 17O NMR and FT-IR spectroscopy. After lyophilization of an aqueous solution at nearly neutral pH, Leu-enkephalin essentially exists in the uncharged state in MeCN/DMSO (4/1) solution. In pure DMSO, only 40% of the Leu-enkephalin molecules are in the zwitterionic state under the same conditions.Entities:
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Year: 1992 PMID： 1544442 DOI： 10.1016/0014-5793(92)80053-j
Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124