Evidence map›Paper›PMID 12894230›Full record

ArticleOncogene2003

Functional inactivation of Cdk9 through oligomerization chain reaction.

Giuliana Napolitano, Alberto Mazzocco, Alessandro Fraldi, Barbara Majello, Luigi Lania

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 34% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Giuliana NapolitanoDepartment of Genetics, Molecular and General Biology, University of Naples Federico II, Naples, Italy.
Alberto Mazzocco
Alessandro Fraldi
Barbara Majello
Luigi Lania
University of Naples Federico II · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The oligomerization chain reaction (OCR) strategy is a recently described technique for inactivation of target proteins that function as homoassociate complexes. This novel strategy is based on the fusion of self-associating coiled-coil (CC) domain of the nuclear factor promyelocytic leukemia (PML) to target proteins. Here, we present the successful application of the OCR strategy for inactivation of the heterodimeric Cdk9/cyclin T1 complex. Cyclin T1/Cdk9 (P-TEFb) complex is a positive regulator of gene transcription, whose function is underlined by the ability to phosphorylate the carboxyl-terminal domain (CTD) of the RNA polymerase II conferring productive transcript elongation. Fusion of the CC domain to Cdk9 leads to the formation of high molecular complexes to which the endogenous cyclin T1 is recruited. The CC-Cdk9 chimera effectively inhibits HIV-1 Tat activation, whose transcription activity is exquisitely dependent upon cyclin T1/Cdk9 function. Furthermore, expression of CC-Cdk9 protein inhibits cell proliferation, as shown by colony-formation assay. Collectively, our findings add further support to the OCR strategy for functional inactivation of hetero-associated factors such as the Cdk9/cyclin T1 complex, and highlight a putative function of Cdk9 in cell growth control.

Indexed as

Nuclear ProteinsCell DivisionCell NucleusColony-Forming Units AssayCyclin-Dependent Kinase 9Cyclin-Dependent KinasesCyclinsCyclin TDimerizationEnzyme ActivationGene Expression RegulationGene Products, tatHeLa CellsHumansMacromolecular SubstancesNeoplasm ProteinsCCNT1 protein, humanCDK9 protein, humanCyclin-Dependent Kinase 9Cyclin-Dependent KinasesCyclinsCyclin TGene Products, tatMacromolecular SubstancesNeoplasm ProteinsNuclear ProteinsPML protein, humanPositive Transcriptional Elongation Factor BPromyelocytic Leukemia ProteinProtein Serine-Threonine KinasesRecombinant Fusion ProteinsRNA, Small NuclearTranscription FactorsTumor Suppressor Proteins

Identifiers

PMID12894230
OpenAlexW1980336210

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.