Evidence map›Paper›PMID 18847512›Full record

ArticleGenome biology2008

Identification of CDK2 substrates in human cell lysates.

Yong Chi, Markus Welcker, Asli A Hizli, Jeffrey J Posakony, Ruedi Aebersold, Bruce E Clurman

Open access · goldAbstract read
In one paragraph

Article in Genome biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 1 pooled it
4.2field-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

105 citing papers in PubMed, 1 synthesis or guideline pooled it, 167 citations in OpenAlex.

  1. Pooled it
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  15. Novel CDKL5 targets identified in human iPSC-derived neurons.Cellular and molecular life sciences : CMLS · 2024
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45 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 3 countries.

Yong ChiDivisions of Clinical Research and Human Biology, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N., Seattle, WA 98109, USA.
Markus Welcker
Asli A Hizli
Jeffrey J Posakony
Ruedi Aebersold
Bruce E Clurman
Fred Hutch Cancer Center · USCape Town HVTN Immunology Laboratory / Hutchinson Centre Research Institute of South Africa · ZAInstitute for Systems Biology · US

Funding

NHLBI PROTEOMICS INITIATIVE-268028179N01HV028179 · HV · INSTITUTE FOR SYSTEMS BIOLOGY · 2002 to 2002
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NHLBI NIH HHS N01 HV028179NHLBI NIH HHS N01-HV-28179
6 · The paper itself

Abstract

backgroundProtein phosphorylation regulates a multitude of biological processes. However, the large number of protein kinases and their substrates generates an enormously complex phosphoproteome. The cyclin-dependent kinases--the CDKs--comprise a class of enzymes that regulate cell cycle progression and play important roles in tumorigenesis. However, despite intense study, only a limited number of mammalian CDK substrates are known. A comprehensive understanding of CDK function requires the identification of their substrate network.

resultsWe describe a simple and efficient approach to identify potential cyclin A-CDK2 targets in complex cell lysates. Using a kinase engineering strategy combined with chemical enrichment and mass spectrometry, we identified 180 potential cyclin A-CDK2 substrates and more than 200 phosphorylation sites. About 10% of these candidates function within pathways related to cell division, and the vast majority are involved in other fundamental cellular processes. We have validated several candidates as direct cyclin A-CDK2 substrates that are phosphorylated on the same sites that we identified by mass spectrometry, and we also found that one novel substrate, the ribosomal protein RL12, exhibits site-specific CDK2-dependent phosphorylation in vivo.

conclusionsWe used methods entailing engineered kinases and thiophosphate enrichment to identify a large number of candidate CDK2 substrates in cell lysates. These results are consistent with other recent proteomic studies, and suggest that CDKs regulate cell division via large networks of cellular substrates. These methods are general and can be easily adapted to identify direct substrates of many other protein kinases.

Indexed as

Cyclin-Dependent Kinase 2HumansMass SpectrometryPhosphopeptidesPhosphorylationProtein EngineeringRibosomal ProteinsSubstrate SpecificityCDK2 protein, humanCyclin-Dependent Kinase 2PhosphopeptidesRibosomal Proteins

Identifiers

PMID18847512
PMCPMC2760876
OpenAlexW2109125373

What OpenQuestion holds

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LicenceCC BY
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.