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Journal of Experimental Botany, Vol. 52, No. 359, pp. 1375-1380, June 1, 2001
© 2001 Oxford University Press

Short Communication

Arabidopsis coactivator ALY-like proteins, DIP1 and DIP2, interact physically with the DNA-binding domain of the Zn-finger poly(ADP-ribose) polymerase 1

Sergei Storozhenko, Dirk Inzé, Marc Van Montagu2 and Sergei Kushnir

Vakgroep Moleculaire Genetica, Departement Plantengenetica, Vlaams Interuniversitair Instituut voor Biotechnologie (VIB), Universiteit Gent, KL Ledeganckstraat 35, B-9000 Gent, Belgium

Abstract

Two novel homologous Arabidopsis proteins, DIP1 and DIP2, interact with the DNA-binding domain of plant poly(ADP-ribose) polymerase (PARP) in the yeast two-hybrid system and in vitro. Their homology to the transcriptional coactivator ALY suggests that plant PARP may play a role in the regulation of transcription.

Key words: Arabidopsis thaliana, coactivators, poly(ADP-ribose) polymerase, protein interaction, transcription.


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