Evidence map›Paper›PMID 14560005›Full record

ArticleMolecular and cellular biology2003

Identification of a TAL1 target gene reveals a positive role for the LIM domain-binding protein Ldb1 in erythroid gene expression and differentiation.

Zhixiong Xu, Suming Huang, Long-Sheng Chang, Alan D Agulnick, Stephen J Brandt

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

79 citing papers in PubMed, 139 citations in OpenAlex.

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  12. DNA·RNA triple helix formation can function as aProceedings of the National Academy of Sciences of the United States of America · 2019
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  20. Chromatin looping as a target for altering erythroid gene expression.Annals of the New York Academy of Sciences · 2016
    Review

19 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

5 authors at 3 institutions in 2 countries.

Zhixiong XuDepartment of Medicine, Vanderbilt University, Nashville, Tennessee 37232, USA.
Suming Huang
Long-Sheng Chang
Alan D Agulnick
Stephen J Brandt
Vanderbilt University · USBiothera (United States) · USNationwide Children's Hospital · US

Funding

REGULATION AND FUNCTION OF THE TAL1/SCL GENER01HL049118 · NHLBI · VANDERBILT UNIVERSITY · PI BRANDT, STEPHEN J. · 1998 to 2011
$2.4M
Neural Specific Serotonin 5-HT2c ReceptorR03MH061406 · NIMH · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI CHANG, LONG-SHENG · 2002 to 2003
$153k
NHLBI NIH HHS R01 HL049118NHLBI NIH HHS R01 HL49118NIMH NIH HHS R03 MH61406
6 · The paper itself

Abstract

The TAL1 (or SCL) gene, originally identified from its involvement by a recurrent chromosomal translocation, encodes a basic helix-loop-helix transcription factor essential for erythropoiesis. Although presumed to regulate transcription, its target genes are largely unknown. We show here that a nuclear complex containing TAL1, its DNA-binding partner E47, zinc finger transcription factor GATA-1, LIM domain protein LMO2, and LIM domain-binding protein Ldb1 transactivates the protein 4.2 (P4.2) gene through two E box GATA elements in its proximal promoter. Binding of this complex to DNA was dependent on the integrity of both E box and GATA sites and was demonstrated to occur on the P4.2 promoter in cells. Maximal transcription in transiently transfected cells required both E box GATA elements and expression of all five components of the complex. This complex was shown, in addition, to be capable of linking in solution double-stranded oligonucleotides corresponding to the two P4.2 E box GATA elements. This DNA-linking activity required Ldb1 and increased with dimethyl sulfoxide-induced differentiation of murine erythroleukemia (MEL) cells. In contrast, enforced expression in MEL cells of dimerization-defective mutant Ldb1, as well as wild-type Ldb1, significantly decreased E box GATA DNA-binding activities, P4.2 promoter activity, and accumulation of P4.2 and beta-globin mRNAs. These studies define a physiologic target for a TAL1- and GATA-1-containing ternary complex and reveal a positive role for Ldb1 in erythroid gene expression and differentiation.

Indexed as

Gene Expression RegulationTranscription, GeneticAnimalsBasic Helix-Loop-Helix ProteinsBlood ProteinsCell DifferentiationCytoskeletal ProteinsDNA-Binding ProteinsErythrocytesErythroid-Specific DNA-Binding FactorsGATA1 Transcription FactorGenes, RegulatorHelix-Loop-Helix MotifsLeukemia, Erythroblastic, AcuteLIM Domain ProteinsMembrane ProteinsBasic Helix-Loop-Helix ProteinsBlood ProteinsCytoskeletal ProteinsDNA-Binding Proteinserythrocyte membrane band 4.2 proteinErythroid-Specific DNA-Binding FactorsGata1 protein, mouseGATA1 Transcription FactorLDB1 protein, humanLdb1 protein, mouseLIM Domain ProteinsMembrane ProteinsProto-Oncogene ProteinsTal1 protein, mouseT-Cell Acute Lymphocytic Leukemia Protein 1Transcription Factors

Identifiers

PMID14560005
PMCPMC207591
OpenAlexW2111868926

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.