Evidence map›Paper›PMID 42573071›Full record

ArticleNucleic acids research2026

Genome-wide mapping of replication stress response factors reveals the management of polycistronic transcription, replication initiation, and responses to replication stress in Leishmania.

Jennifer A Black, Stela Virgilio, Matheus S Bastos, Gabriel L A Silva, Jeziel D Damasceno, Kathryn Crouch, Craig Lapsley, Richard McCulloch, Luiz R O Tosi

Abstract read
In one paragraph

Article in Nucleic acids research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Jennifer A BlackDepartment of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14040-900 SP, Brazil.ORCID 0000-0001-5219-3172
Stela VirgilioDepartment of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14040-900 SP, Brazil.
Matheus S BastosDepartment of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14040-900 SP, Brazil.
Gabriel L A SilvaDepartment of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14040-900 SP, Brazil.
Jeziel D DamascenoUniversity of Glasgow Centre for Parasitology, School of Infection and Immunity, Sir Graeme Davies Building, 120 University Place, Glasgow G12 8TA, United Kingdom.ORCID 0000-0003-2077-3214
Kathryn CrouchUniversity of Glasgow Centre for Parasitology, School of Infection and Immunity, Sir Graeme Davies Building, 120 University Place, Glasgow G12 8TA, United Kingdom.ORCID 0000-0001-9310-4762
Craig LapsleyUniversity of Glasgow Centre for Parasitology, School of Infection and Immunity, Sir Graeme Davies Building, 120 University Place, Glasgow G12 8TA, United Kingdom.
Richard McCullochUniversity of Glasgow Centre for Parasitology, School of Infection and Immunity, Sir Graeme Davies Building, 120 University Place, Glasgow G12 8TA, United Kingdom.ORCID 0000-0001-5739-976X
Luiz R O TosiDepartment of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14040-900 SP, Brazil.ORCID 0000-0001-9932-5486

Funding

Biotechnology and Biological Sciences Research Council BB/N016165/1Biotechnology and Biological Sciences Research Council BB/R017166/1Fundação de Amparo à Pesquisa do Estado de São Paulo 18/14398-0Fundação de Amparo à Pesquisa do Estado de São Paulo 18/14432-3Fundação de Amparo à Pesquisa do Estado de São Paulo 19/25769-1Fundação de Amparo à Pesquisa do Estado de São Paulo 20/01883-7Fundação de Amparo à Pesquisa do Estado de São Paulo FAPESP 24/08412-0Fundação de Amparo à Pesquisa do Estado de São Paulo MR/S019472/1
6 · The paper itself

Abstract

Exposed single-stranded DNA (ssDNA) accumulating at stalled or collapsed replication forks (RFs) can trigger the replication stress response (RSR) to prevent genome instability. Leishmania are parasitic eukaryotes whose plastic genomes facilitate rapid adaptations under stress, with intrinsic replication stress (RS) implicated as a source. Little is known about the Leishmania RSR. Here, we reveal the global dynamics of the RSR in Leishmania major by performing ChIP-seq, focusing on two key RSR proteins, γH2A and RPA1, in the absence and presence of RS. We show that common RS 'hotspots' coincide with DNA replication initiation and transcription termination in Leishmania. When replication is stalled, RSR factors accumulate at early S-phase origins, with a signal pattern reminiscent of bidirectional RF progression. Under chronic RS conditions, increased accumulation of RSR factors emerges at wider sites of transcription initiation, suggesting Leishmania may possess compensatory strategies to limit the effects of RS and ensure DNA replication completion under stress. In contrast, chronic RS enhances RSR factor accumulation at transcription termination sites, highlighting these regions as RS 'hotspots' in Leishmania. Lastly, variations in replication protein A (RPA) dynamics in Ataxia Telangiectasia and Rad3 Related (ATR)-deficient cells uncover crucial roles of this kinase in managing polycistronic transcription and DNA replication, particularly under RS, in Leishmania.

Indexed as

DNA ReplicationLeishmania majorStress, PhysiologicalTranscription, GeneticChromosome MappingDNA, ProtozoanDNA, Single-StrandedGenome, ProtozoanHistonesProtozoan ProteinsReplication OriginReplication Protein ADNA, ProtozoanDNA, Single-StrandedHistonesProtozoan ProteinsReplication Protein A

Identifiers

PMID42573071
PMCPMC13454844

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LicenceCC BY
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Registered trials

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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.