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Review
. 1998 Jul;23(7):236-8.
doi: 10.1016/s0968-0004(98)01223-7.

Protein-PCNA interactions: a DNA-scanning mechanism?

Affiliations
Review

Protein-PCNA interactions: a DNA-scanning mechanism?

Z Kelman et al. Trends Biochem Sci. 1998 Jul.

Abstract

Proliferating-cell nuclear antigen (PCNA) plays an essential role in nucleic-acid metabolism in all eukaryotes. The PCNA protein interacts with a large number of proteins. These proteins can be divided into two groups: the first contains proteins that have a known enzymatic activity; the second contains regulatory proteins that are involved in cell-cycle progression, checkpoint control and cellular differentiation. Interestingly, all of the enzymes known to interact with PCNA either recognize specific structures on DNA or have limited DNA-sequence specificity. Proteins that have low sequence specificities could utilize PCNA as an adapter in order to interact with their DNA substrates.

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