Evidence map›Paper›PMID 21497608›Full record

ArticleJournal of molecular biology2011

HTLV-1 HBZ protein deregulates interactions between cellular factors and the KIX domain of p300/CBP.

Pamela R Cook, Nicholas Polakowski, Isabelle Lemasson

Abstract read
In one paragraph

Article in Journal of molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

29 citing papers in PubMed, 37 citations in OpenAlex.

  1. Upregulation of Neuropilin-1 Inhibits HTLV-1 Infection.Pathogens (Basel, Switzerland) · 2023
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  10. Structural basis for cooperative regulation of KIX-mediated transcription pathways by the HTLV-1 HBZ activation domain.Proceedings of the National Academy of Sciences of the United States of America · 2018
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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

3 authors at 1 institution in 1 country.

Pamela R CookDepartment of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 278374, USA.
Nicholas Polakowski
Isabelle Lemasson
East Carolina University · US

Funding

Regulation of HTLV-1 and cellular gene transcription by the viral protein HBZR01CA128800 · NCI · EAST CAROLINA UNIVERSITY · PI LEMASSON, ISABELLE MICHELE · 2010 to 2014
$1.3M
NCI NIH HHS R01 CA128800NCI NIH HHS R01CA128800
6 · The paper itself

Abstract

The complex retrovirus human T-cell leukemia virus type 1 (HTLV-1) is the causative agent of adult T-cell leukemia. Deregulation of cellular transcription is thought to be an important step for T-cell transformation caused by viral infection. HTLV-1 basic leucine zipper factor (HBZ) is one of the viral proteins believed to be involved in this process, as it deregulates the expression of numerous cellular genes. In the context of the provirus, HBZ represses HTLV-1 transcription, in part, by binding to the homologous cellular coactivators p300 and CBP. These coactivators play a central role in transcriptional regulation. In this study, we determined that HBZ binds with high affinity to the KIX domain of p300/CBP. This domain contains two binding surfaces that are differentially targeted by multiple cellular factors. We show that two φXXφφ motifs in the activation domain of HBZ mediate binding to a single surface of the KIX domain, the mixed-lineage leukemia (MLL) binding surface. Formation of this interaction inhibits binding of MLL to the KIX domain while enhancing the binding of the transcription factor c-Myb to the opposite surface of KIX. Consequently, HBZ inhibits transcriptional activation mediated by MLL and enhances activation mediated by c-Myb. CREB, which binds the same surface of KIX as c-Myb, also exhibited an increase in activity through HBZ. These results indicate that HBZ is able to alter gene expression by competing with transcription factors for the occupancy of one surface of KIX while enhancing the binding of factors to the other surface.

Indexed as

Protein Interaction Domains and MotifsAmino Acid SequenceBasic-Leucine Zipper Transcription FactorsBinding SitesGene Expression Regulation, ViralHost-Derived Cellular FactorsHumansHuman T-lymphotropic virus 1Molecular Sequence Datap300-CBP Transcription FactorsPromoter Regions, GeneticProtein BindingProtein Structure, TertiaryProto-Oncogene Proteins c-mybRetroviridae ProteinsTranscriptional ActivationBasic-Leucine Zipper Transcription FactorsHBZ protein, human T-cell leukemia virus type IHost-Derived Cellular Factorsp300-CBP Transcription FactorsProto-Oncogene Proteins c-mybRetroviridae ProteinsViral Proteins

Identifiers

PMID21497608
PMCPMC3139367
OpenAlexW2121464818

What OpenQuestion holds

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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.