The Modification of Nuclear Proteins by ADP-ribosylation

Autor: Alexander J. MacGILLIVRAY, William J. D. Whish, David Rickwood
Rok vydání: 1977
Předmět:
Zdroj: European Journal of Biochemistry. 79:589-598
ISSN: 1432-1033
0014-2956
DOI: 10.1111/j.1432-1033.1977.tb11843.x
Popis: When incubated in vitro purified mouse nuclei incorporate NAD into poly(ADP-Rib). Analysis of the product on CsDl/urea gradients showed that a large proportion of the poly(ADP-Rib) was not attached to protein. The free poly(ADP-Rib) did not appear to arise through degradation and its chain length was significantly longer than the poly(ADP-Rib) attached to proteins. Fractionation of the proteins on hydroxyapatite revealed that tissue-specific modification of both the histones and non-histone proteins, had occurred. In the case of one protein species there was evidence for the existence of several forms with different numbers of ADP-Rib residues.
Databáze: OpenAIRE