RT Journal Article SR Electronic T1 Interaction of the p53-regulated protein Gadd45 with proliferating cell nuclear antigen JF Science JO Science FD American Association for the Advancement of Science SP 1376 OP 1380 DO 10.1126/science.7973727 VO 266 IS 5189 A1 Smith, ML A1 Chen, IT A1 Zhan, Q A1 Bae, I A1 Chen, CY A1 Gilmer, TM A1 Kastan, MB A1 O'Connor, PM A1 Fornace, AJ YR 1994 UL http://science.sciencemag.org/content/266/5189/1376.abstract AB GADD45 is a ubiquitously expressed mammalian gene that is induced by DNA damage and certain other stresses. Like another p53-regulated gene, p21WAF1/CIP1, whose product binds to cyclin-dependent kinases (Cdk's) and proliferating cell nuclear antigen (PCNA), GADD45 has been associated with growth suppression. Gadd45 was found to bind to PCNA, a normal component of Cdk complexes and a protein involved in DNA replication and repair. Gadd45 stimulated DNA excision repair in vitro and inhibited entry of cells into S phase. These results establish GADD45 as a link between the p53-dependent cell cycle checkpoint and DNA repair.