ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 0006-3525
    Keywords: rubredoxin ; iron(II)/cysteine peptide complex ; aqueous micelle solution ; NH - S hydrogen bond ; aromatic ring ; 19F-nmr ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The absorption, CD, and 1H- and 19F-nmr spectroscopic features of Fe(II) complexes with a series of cysteine-containing oligopeptides were investigated in aqueous (H2O or D2O) 10% Triton X-100 micelle solution. The complexes with distal aromatic rings, [Fe(Z-cys-Pro-Leu-cys-Gly-X)2]2- (Z = benzyloxycarbonyl; X = NH-C6H4-p-F, NH-CH2-CH2-C6H4-p-F, and Phe-OMe), were found to be quite stable in such aqueous micelle solution. The coordination of cysteine-peptide ligands to the Fe(II) ion is revealed by isotropically shifted 1H-nmr signals due to the Cys CβH2 protons occurring at 120 ∼ 250 ppm in a D2O Triton X-100 micelle solution (10%) at 60°C that are very similar to those reported for native reduced rubredoxin. The high stability of these cysteine peptide-Fe(II) complexes in aqueous micellar system was explained by the combined contributions from NH - S hydrogen bonds and the effect of the proximity of aromatic groups. The existence of such NH - S hydrogen bonds and interactions between aromatic ring and sulfur atom was confirmed by 19F-nmr spectral and 19F spin-lattice relaxation times (T1) measurements. © 1998 John Wiley & Sons, Inc. Biopoly 46: 1-10, 1998
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...