Evidence map›Paper›PMID 16980611›Full record

ArticleMolecular and cellular biology2006

Modulation of a P-TEFb functional equilibrium for the global control of cell growth and differentiation.

Nanhai He, Andrea C Pezda, Qiang Zhou

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

76 citing papers in PubMed, 98 citations in OpenAlex.

  1. cGAS/STING-Independent Induction of Type I Interferon by Inhibitors of the Histone Methylase KDM5B.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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  10. CDK9 keeps RNA polymerase II on track.Cellular and molecular life sciences : CMLS · 2021
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  12. The multifaceted role of PARP1 in RNA biogenesis.Wiley interdisciplinary reviews. RNA · 2021
    Review
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  18. Natural Products and HIV/AIDS.AIDS research and human retroviruses · 2018
    Review
  19. Article
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16 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

3 authors at 1 institution in 1 country.

Nanhai HeDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA.
Andrea C Pezda
Qiang Zhou
University of California, Berkeley · US

Funding

REGULATION OF TRANSCRIPTIONAL ELONGATION BY HIV1 TATR01AI041757 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI ZHOU, QIANG · 1997 to 2019
$6.6M
NIAID NIH HHS AI41757NIAID NIH HHS R01 AI041757
6 · The paper itself

Abstract

P-TEFb phosphorylates RNA polymerase II and negative elongation factors to stimulate general transcriptional elongation. It is kept in a functional equilibrium through alternately interacting with its positive (the Brd4 protein) and negative (the HEXIM1 protein and 7SK snRNA) regulators. To investigate the physiological significance of this phenomenon, we analyzed the responses of HeLa cells and murine erythroleukemia cells (MELC) to hexamethylene bisacetamide (HMBA), which inhibits growth and induces differentiation of many cell types. For both cell types, an efficient, albeit temporary disruption of the 7SK-HEXIM1-P-TEFb snRNP and enhanced formation of the Brd4-P-TEFb complex occurred soon after the treatment started. When the P-TEFb-dependent HEXIM1 expression markedly increased as the treatment continued, the abundant HEXIM1 pushed the P-TEFb equilibrium back toward the 7SK/HEXIM1-bound state. For HeLa cells, as HMBA produced only a minor, temporary effect on their growth, the equilibrium gradually returned to its pretreatment level. In contrast, long-term treatment of MELC induced terminal division and differentiation. Concurrently, the P-TEFb equilibrium was shifted overwhelmingly toward the 7SK snRNP side. Together, these data link the P-TEFb equilibrium to the intracellular transcriptional demand and proliferative/differentiated states of cells.

Indexed as

AcetamidesAnimalsCell DifferentiationCell Growth ProcessesChromatinHeLa CellsHIV-1HumansMicePositive Transcriptional Elongation Factor BProtein BindingRibonucleoproteins, Small NuclearRNA-Binding ProteinsTranscription FactorsTranscription, GeneticAcetamidesChromatinhexamethylene bisacetamideHEXIM1 protein, humanPositive Transcriptional Elongation Factor BRibonucleoproteins, Small NuclearRNA-Binding ProteinsTranscription Factors

Identifiers

PMID16980611
PMCPMC1592901
OpenAlexW2121971761

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.