Etracker Debug:
	et_pagename = "Biological Chemistry|bchm|C|[EN]"
Jump to ContentJump to Main Navigation

Biological Chemistry

Editor-in-Chief: Brüne, Bernhard

Editorial Board Member: Buchner, Johannes / Ludwig, Stephan / Sies, Helmut / Turk, Boris / Wittinghofer, Alfred

12 Issues per year



Noncovalent Binding of Poly(ADP-Ribose) to Nuclear Matrix Proteins: Developmental Changes and Tissue Specificity

M. Malanga / B. Farina

Citation Information: Biological Chemistry. Volume 381, Issue 11, Pages 1047–1053, ISSN (Print) 1431-6730, DOI: 10.1515/BC.2000.129, July 2005

Publication History

Published Online:


Poly(ADP-ribose) is a nuclear polynucleotide involved in the regulation of chromatin functions via covalent and/or noncovalent modification of nuclear proteins. Using a binding assay on protein blots, we searched for poly(ADP-ribose) binding proteins in nuclear matrices from testes of differently aged rats as well as from various adult rat tissues (brain, liver, spleen). We found that nuclear matrix proteins represent a significant subset of the nuclear proteins that can establish noncovalent interactions with poly(ADP-ribose). The profiles of poly(ADP-ribose) binding nuclear matrix proteins appeared to be tissue-specific and changed during postnatal development in the testis.

The isolation and analysis of endogenous poly (ADP-ribose) from rat testes showed that the ADP-ribose polymers that bind nuclear matrix proteins in vitro are also present under physiologic conditions in vivo. These results further substantiate the possibility that poly(ADP-ribose) may affect chromatin functions through noncovalent interaction with specific protein targets, including nuclear matrix components.

Comments (0)

Please log in or register to comment.
Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.