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1982 (1)
1Author    H. Hauer, H.-D Lüdemann, R. JaenickeRequires cookie*
 Title    Free Activation Energies and Activation Volumes for the Amide Rotation in Some Peptides Studied by High Pressure 'H-High Resolution NMR  
 Abstract    From the pressure dependence o f !H high resolution N M R spectra o f two dipeptides (glycylsarcosine and N-acetyl-L-proline-NH-methylamide in the range 0.1 MPa <.p< . 150 MPa the activation volumes A V* for the am ide rotation are derived. This conform ational transition is characterized for glycylsarcosine by A V* = 4 ± 1 cm3 • m ol-1 and for. the proline derivative by AV* = 1 .5 ± 1 cm3 • m ol-1. From the given results the m axim um contribution o f proline cis ^ trans isomerisation to the pressure dependence o f the rate o f reactivation of proteins can be estimated to ~ — 30% per M Pa and proline present. 
  Reference    Z. Naturforsch. 37c, 51—56 (1982); received Septem ber 221981 
  Published    1982 
  Keywords    Activation Volume, High Pressure, NM R, Peptides, Proline-Isom erization 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0051.pdf 
 Identifier    ZNC-1982-37c-0051 
 Volume    37