... Szewczuk1and Wojciech Bal1,21Faculty of Chemistry, University of Wroclaw, Poland;2Institute of Biochemistry and Biophysics, Polish Academy of Sciences,Warsaw, Poland A comparative study of thermodynamic ... tdeviate systematically from those of DAHam andDAHKam. This means that the side chain carboxylate of Asp1 does not have a direct effect on metal coordination(in agreement with previous ob servations ... assessed by HPLC analysis of the final m aterials. I dentity and purity of peptide was confirmedby mass spectrometry, utilizing a Finnigan MAT TSQ 700(Finnigan MAT, San Jose, CA, USA) mass spectrometerequipped...