Characterization of Acyl Adenyl Anhydrides: Differences in the Hydrolytic Rates of Fatty Acyl-AMP and Aminoacyl-AMP Derivatives
摘要:
An improved procedure has been developed to prepare RCOOPO2-Ado (R = C6H13 and C15H31), the intermediate in the enzymatic synthesis of acyl-CoA's. The product has been characterized by spectral methods which, in turn, were used to define the hydrolysis rates of RCO-AMP. When R is a fatty acyl group, the hydrolysis rate is 10-fold slower than when R is aminoacyl. In both cases, the hydrolysis rate is enhanced by Mg2+. We speculate that the rate acceleration is due to intramolecular participation of the second carbonyl group in the aminoacyl residue.
Characterization of Acyl Adenyl Anhydrides: Differences in the Hydrolytic Rates of Fatty Acyl-AMP and Aminoacyl-AMP Derivatives
摘要:
An improved procedure has been developed to prepare RCOOPO2-Ado (R = C6H13 and C15H31), the intermediate in the enzymatic synthesis of acyl-CoA's. The product has been characterized by spectral methods which, in turn, were used to define the hydrolysis rates of RCO-AMP. When R is a fatty acyl group, the hydrolysis rate is 10-fold slower than when R is aminoacyl. In both cases, the hydrolysis rate is enhanced by Mg2+. We speculate that the rate acceleration is due to intramolecular participation of the second carbonyl group in the aminoacyl residue.
Effects of hydration, cholesterol, amphotericin B, and cyclosporin A on the lipid bilayer interface region: an infrared spectroscopic study using 1-(1-13C)dipalmitoylphosphatidylcholine
作者:Peter M. Green、Jeffrey T. Mason、Timothy J. O'Leary、Ira W. Levin
DOI:10.1021/j100303a044
日期:1987.9.10
Characterization of Acyl Adenyl Anhydrides: Differences in the Hydrolytic Rates of Fatty Acyl-AMP and Aminoacyl-AMP Derivatives
作者:Otto F. Schall、Iwao Suzuki、Clare L. Murray、Jeffrey I. Gordon、George W. Gokel
DOI:10.1021/jo971874f
日期:1998.11.1
An improved procedure has been developed to prepare RCOOPO2-Ado (R = C6H13 and C15H31), the intermediate in the enzymatic synthesis of acyl-CoA's. The product has been characterized by spectral methods which, in turn, were used to define the hydrolysis rates of RCO-AMP. When R is a fatty acyl group, the hydrolysis rate is 10-fold slower than when R is aminoacyl. In both cases, the hydrolysis rate is enhanced by Mg2+. We speculate that the rate acceleration is due to intramolecular participation of the second carbonyl group in the aminoacyl residue.