Indiani C, O'Donnell M. The replication clamp-loading machine at work in the three domains of life.
Nat Rev Mol Cell Biol 2006;
7:751-61. [PMID:
16955075 DOI:
10.1038/nrm2022]
[Citation(s) in RCA: 147] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Sliding clamps are ring-shaped proteins that tether DNA polymerases to DNA, which enables the rapid and processive synthesis of both leading and lagging strands at the replication fork. The clamp-loading machinery must repeatedly load sliding-clamp factors onto primed sites at the replication fork. Recent structural and biochemical analyses provide unique insights into how these clamp-loading ATPase machines function to load clamps onto the DNA. Moreover, these studies highlight the evolutionary conservation of the clamp-loading process in the three domains of life.
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