ArticleNucleic acids research2019
A novel mode of DnaA-DnaA interaction promotes ADP dissociation for reactivation of replication initiation activity.
Article in Nucleic acids research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 19 citations in OpenAlex.
- The iron-sulfur accelerator YgfZ modulates genome-wide IHF-binding dynamics to regulate replication initiation inFrontiers in microbiology · 2026Article
- Negative DNA supercoiling enhances DARS2 binding of DNA-bending protein IHF in the activation of Fis-dependent ATP-DnaA production.Nucleic acids research · 2025Article
- An additional replication origin causes cell cycle specific DNA replication fork speed.Frontiers in microbiology · 2025Article
- Dispensability of extrinsic DnaA regulators inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Read-through transcription of tRNA underlies the cell cycle-dependent dissociation of IHF from the DnaA-inactivating sequenceFrontiers in microbiology · 2024Article
- IHF and Fis asInternational journal of molecular sciences · 2023Review
- Single-stranded DNA recruitment mechanism in replication origin unwinding by DnaA initiator protein and HU, an evolutionary ubiquitous nucleoid protein.Nucleic acids research · 2023Article
- Inhibition of Replication Fork Formation and Progression: Targeting the Replication Initiation and Primosomal Proteins.International journal of molecular sciences · 2023Review
- CDC7 as a novel biomarker and druggable target in cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2022Review
- Concerted actions of DnaA complexes with DNA-unwinding sequences within and flanking replication origin oriC promote DnaB helicase loading.The Journal of biological chemistry · 2022Article
- Negative feedback for DARS2-Fis complex by ATP-DnaA supports the cell cycle-coordinated regulation for chromosome replication.Nucleic acids research · 2021Article
- Whole-Genome Analysis Reveals That the Nucleoid Protein IHF Predominantly Binds to the Replication OriginFrontiers in microbiology · 2021Article
- Blocking, Bending, and Binding: Regulation of Initiation of Chromosome Replication During theFrontiers in microbiology · 2021Review
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
ATP-DnaA is temporally increased to initiate replication during the cell cycle. Two chromosomal loci, DARS (DnaA-reactivating sequences) 1 and 2, promote ATP-DnaA production by nucleotide exchange of ADP-DnaA for timely initiation. ADP-DnaA complexes are constructed on DARS1 and DARS2, bearing a cluster of three DnaA-binding sequences (DnaA boxes I-III), promoting ADP dissociation. Although DnaA has an AAA+ domain, which ordinarily directs construction of oligomers in a head-to-tail manner, DnaA boxes I and II are oriented oppositely. In this study, we constructed a structural model of a head-to-head dimer of DnaA AAA+ domains, and analyzed residues residing on the interface of the model dimer. Gln208 was specifically required for DARS-dependent ADP dissociation in vitro, and in vivo analysis yielded consistent results. Additionally, ADP release from DnaA protomers bound to DnaA boxes I and II was dependent on Gln208 of the DnaA protomers, and DnaA box III-bound DnaA did not release ADP nor require Gln208 for ADP dissociation by DARS-DnaA complexes. Based on these and other findings, we propose a model for DARS-DnaA complex dynamics during ADP dissociation, and provide novel insight into the regulatory mechanisms of DnaA and the interaction modes of AAA+ domains.
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