Multiple roles of the proliferating cell nuclear antigen: DNA replication, repair and cell cycle control
- 1 January 1997
- book chapter
- Published by Springer Nature
- Vol. 3, 193-210
- https://doi.org/10.1007/978-1-4615-5371-7_15
Abstract
The proliferating cell nuclear antigen (PCNA), the auxiliary protein of DNA polymerases δ and ε, is involved in DNA replication and repair. This protein forms a homotrimeric structure which, encircling DNA, loads the polymerase on the DNA template. A role for PCNA in the cell cycle control is recognised on the basis of the interaction with cyclins, cyclin-dependent kinases (cdks) and the cdk-inhibitor p21 waf1/cip1/sdi1 protein. Association with the growth-arrest and DNA-damage inducible proteins gadd45 and MyD118, further demonstrates the role of PCNA as a component of the cell cycle control apparatus.Keywords
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