O-Acetyl-ADP-Ribose

Medical Dictionary -> O-Acetyl-ADP-Ribose

O-Acetyl-ADP-Ribose


An acetyl ester of ADENOSINE DIPHOSPHATE RIBOSE formed during NAD-dependent deacetylation of proteins by SIRTUINS. The acetate group resides on the ribose ring where nicotinamide was cleaved from NAD during the reaction. Several isomers of O-acetyl-ADP-ribose have been isolated from the reaction.


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