Physical interaction between proliferating cell nuclear antigen and replication factor C from Pyrococcus furiosus

Shigeki Matsumiya, Sonoko Ishino, Yoshizumi Ishino, Kosuke Morikawa

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Background: Proliferating cell nuclear antigen (PCNA), which is recognized as a DNA polymerase processivity factor, has direct interactions with various proteins involved in the important genetic information processes in Eukarya. We determined the crystal structure of PCNA from the hyperthermophilic archaeon, Pyrococcus furiosus (PfuPCNA) at 2.1 Å resolution, and found that the toroidal ringshaped structure, which consists of homotrimeric molecules, is highly conserved between the Eukarya and Archaea.This allowed us to examine its interaction with the loading factor at the atomic level. Results: The replication factor C (RFC) is known as the loading factor of PCNA on to the DNA strand. P.furiosus RFC (PfuRFC) has a PCNA binding motif (PIP-box) at the C-terminus of the large subunit (RFCL). An 11 residue-peptide containing a PIP-box sequence of RFCL inhibited the PCNA-dependent primer extension ability of P. furiosus PolI in a concentration-dependent manner. To understand the molecular interaction mechanism of PCNA with PCNA binding proteins, we solved the crystal structure of PfuPCNA complexed with the PIP-box peptide. The interaction mode of the two molecules is remarkably similar to that of human PCNA and a peptide containing the PIP-box of p2lWAF/CIP1. Moreover, the PIP-box binding may have some effect on the stability of the ring structure of PfuPCNA by some domain shift. Conclusions: Our structural analysis on PfuPCNA suggests that the interaction mode of the PIP-box with PCNA is generally conserved among the PCNA interacting proteins and that the functional meaning of the interaction via the PIP-box possibly depends on each protein. A movement of the C-terminal region of the PCNA monomer by PIP-box binding may cause the PCNA ring to be more rigid, suitable for its functions.

Original languageEnglish
Pages (from-to)911-922
Number of pages12
JournalGenes to Cells
Volume7
Issue number9
DOIs
Publication statusPublished - Sep 1 2002

Fingerprint

Replication Protein C
Pyrococcus furiosus
Proliferating Cell Nuclear Antigen
Archaea
Eukaryota
Peptides
Genetic Phenomena
Proteins
DNA-Directed DNA Polymerase

All Science Journal Classification (ASJC) codes

  • Genetics
  • Cell Biology

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Physical interaction between proliferating cell nuclear antigen and replication factor C from Pyrococcus furiosus. / Matsumiya, Shigeki; Ishino, Sonoko; Ishino, Yoshizumi; Morikawa, Kosuke.

In: Genes to Cells, Vol. 7, No. 9, 01.09.2002, p. 911-922.

Research output: Contribution to journalArticle

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