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'Peptides' in keywords Facet   section ZfN Section C  [X]
Facet   Publication Year 1976  [X]
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1Author    Dorothee Petz, Friedhelm SchneiderRequires cookie*
 Title    Kinetic Analysis of the Catalytic Properties of Peptides in Ester Hydrolysis  
 Abstract    The catalytic properties of peptides containing histidine, cysteine and aspartic acid in ester hydrolysis were studied. Saturation kinetics were found for the reaction of p-nitrophenyl acetate (NPA) with Z-His-Ala-Asp-Gly-Cys-NH2 and Z-His-Ala-Gly-Gly-Cys-NH2 . The Brönsted equation for the hydrolysis of Zer«-butyloxycarbonyl-L-alanine-p-nitrophenylester (Boc-Ala-ONp) catalyzed by simple imidazole and SH-compounds was determined. The catalytic behaviour of the peptides in ester hydrolysis could not be described by the Brönsted equations for imidazole or thiole catalyzed hydrolysis of NPA and Boc-Ala-ONp. The pH dependence of the rate constants of the catalyzed ester hydrolysis gave no linear plots in 1 Jk versus H+ diagrams. 
  Reference    (Z. Naturforsch. 31c, 675 [1976]; received September 20 1976) 
  Published    1976 
  Keywords    Kinetic Properties, Peptides, Ester Hydrolysis 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0675.pdf 
 Identifier    ZNC-1976-31c-0675 
 Volume    31