ArticleNucleic acids research2022
The Escherichia coli clamp loader rapidly remodels SSB on DNA to load clamps.
Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 12 citations in OpenAlex.
- Microbial Natural Products Targeting theMicroorganisms · 2026Review
- A novel ψ-χ fusion protein for unravelling the contributions of χ to DNA replication and repair.Nucleic acids research · 2026Article
- A NovelbioRxiv : the preprint server for biology · 2026Article
- The YoaA-χ helicase modulates the dynamics of single-stranded DNA binding protein on DNA.Nature communications · 2025Article
- Structural characterisation of the complete cycle of sliding clamp loading in Escherichia coli.Nature communications · 2024Article
- Untangling the adaptive strategies of thermophilic bacterium Anoxybacillus rupiensis TPH1 under low temperature.Extremophiles : life under extreme conditions · 2024Article
- Single-stranded DNA binding protein hitches a ride with thebioRxiv : the preprint server for biology · 2024Article
- Escherichia coli DNA replication: the old model organism still holds many surprises.FEMS microbiology reviews · 2024Review
- Differences between bacteria and eukaryotes in clamp loader mechanism, a conserved process underlying DNA replication.The Journal of biological chemistry · 2024Article
- Differences in clamp loader mechanism between bacteria and eukaryotes.bioRxiv : the preprint server for biology · 2023Article
- Molecular insights into the prototypical single-stranded DNA-binding protein fromCritical reviews in biochemistry and molecular biologyReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Single-stranded DNA binding proteins (SSBs) avidly bind ssDNA and yet enzymes that need to act during DNA replication and repair are not generally impeded by SSB, and are often stimulated by SSB. Here, the effects of Escherichia coli SSB on the activities of the DNA polymerase processivity clamp loader were investigated. SSB enhances binding of the clamp loader to DNA by increasing the lifetime on DNA. Clamp loading was measured on DNA substrates that differed in length of ssDNA overhangs to permit SSB binding in different binding modes. Even though SSB binds DNA adjacent to single-stranded/double-stranded DNA junctions where clamps are loaded, the rate of clamp loading on DNA was not affected by SSB on any of the DNA substrates. Direct measurements of the relative timing of DNA-SSB remodeling and enzyme-DNA binding showed that the clamp loader rapidly remodels SSB on DNA such that SSB has little effect on DNA binding rates. However, when SSB was mutated to reduce protein-protein interactions with the clamp loader, clamp loading was inhibited by impeding binding of the clamp loader to DNA. Thus, protein-protein interactions between the clamp loader and SSB facilitate rapid DNA-SSB remodeling to allow rapid clamp loader-DNA binding and clamp loading.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.