ROCCHI, R.;BIONDI, L.;FILIRA, F.;SCOLARO, B., INT. J. PEPTIDE AND PROTEIN RES., 30,(1987) N 2, 240-256
作者:ROCCHI, R.、BIONDI, L.、FILIRA, F.、SCOLARO, B.
DOI:——
日期:——
Studies on the Secondary Structure of Bradykinin in Aqueous Solution. Syntheses, Circular Dichroism Spectra, and Biological Activities of Bradykinin Analogs Containing 5-Aminovaleric Acid Residue
of Arg1 and the carboxyl group of Arg9, was proposed for the secondarystructure of bradykinin in aqueous solution. The biological activities of these analogs depend on the presence of both Phe residues at positions 5 and 8, and Arg residues at positions 1 and 9. No correlation between the biological activities and the secondarystructure could be found.
Des-Pro2-Bradykinin was synthesized by the classical solution method as a reference compound for a possible contaminant in synthetic bradykinins, and its behavior in various chromatographic analyses was examined. It showed almost the same Rf values as bradykinin under several different conditions in cellulose thin layer chromatography and in paper electrophoresis, but was clearly separable from bradykinin by reversed phase high performance liquid chromatography under specific conditions. Since des-Pro2-bradykinin was found to have a potent bradykinin-potentiating activity, contamination by this material should be carefully avoided in bradykinin synthesis.