PARP-1 binds E2F-1 independently of its DNA binding and catalytic domains, and acts as a novel coactivator of E2F-1-mediated transcription during re-entry of quiescent cells into S phase
Oncogene (2003) - Comment
pubmed: 14627987  doi: 10.1038/sj.onc.1206897  issn: 0950-9232  issn: 1476-5594 

Cynthia M Simbulan-Rosenthal, Dean S Rosenthal, RuiBai Luo, Raed Samara, Luis A Espinoza, Paul O Hassa, Michael O Hottiger, Mark E Smulson