Evidence map›Paper›PMID 18256689›Full record

ArticleThe EMBO journal2008

Cdk1 and Cdk2 activity levels determine the efficiency of replication origin firing in Xenopus.

Liliana Krasinska, Emilie Besnard, Emilie Cot, Christiane Dohet, Marcel Méchali, Jean-Marc Lemaitre, Daniel Fisher

Open access · greenAbstract read
In one paragraph

Article in The EMBO journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.1field-weighted citation impact, top 5% of its field
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

37 citing papers in PubMed, 68 citations in OpenAlex.

  1. CDC7 and APC/CNature communications · 2026
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  16. DNA replication timing.Cold Spring Harbor perspectives in biology · 2013
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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

7 authors at 5 institutions in 1 country.

Liliana KrasinskaLaboratory of Phosphorylation and Cell Cycle Control, Institut de Génétique Moléculaire de Montpellier, CNRS, UMR5535, Montpellier, France.
Emilie Besnard
Emilie Cot
Christiane Dohet
Marcel Méchali
Jean-Marc Lemaitre
Daniel Fisher
Inserm · FRCentre National de la Recherche Scientifique · FRInstitut de Génétique Humaine · FRInstitut de Génétique Moléculaire de Montpellier · FRUniversité de Montpellier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this paper, we describe how, in a model embryonic system, cyclin-dependent kinase (Cdk) activity controls the efficiency of DNA replication by determining the frequency of origin activation. Using independent approaches of protein depletion and selective chemical inhibition of a single Cdk, we find that both Cdk1 and Cdk2 are necessary for efficient DNA replication in Xenopus egg extracts. Eliminating Cdk1, Cdk2 or their associated cyclins changes replication origin spacing, mainly by decreasing frequency of activation of origin clusters. Although there is no absolute requirement for a specific Cdk or cyclin, Cdk2 and cyclin E contribute more to origin cluster efficiency than Cdk1 and cyclin A. Relative Cdk activity required for DNA replication is very low, and even when both Cdk1 and Cdk2 are strongly inhibited, some origins are activated. However, at low levels, Cdk activity is limiting for the pre-replication complex to pre-initiation complex transition, origin activation and replication efficiency. As such, unlike mitosis, initiation of DNA replication responds progressively to changes in Cdk activity at low activity levels.

Indexed as

DNA ReplicationAnimalsCDC2 Protein KinaseCell ExtractsChromatinCyclin-Dependent Kinase 2DNAOocytesXenopusCDC2 Protein KinaseCell ExtractsChromatinCyclin-Dependent Kinase 2DNA

Identifiers

PMID18256689
PMCPMC2265753
OpenAlexW2054767020

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.