Evidence map›Paper›PMID 8668191›Full record

ArticleMolecular and cellular biology1996

Flanking sequences modulate the cell specificity of M-CAT elements.

S B Larkin, I K Farrance, C P Ordahl

Open access · greenAbstract readComparative Study
In one paragraph

Article in Molecular and cellular biology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 74 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

3 authors at 1 institution in 1 country.

S B LarkinDepartment of Anatomy, University of California San Francisco, California 94143, USA.
I K Farrance
C P Ordahl
University of California, San Francisco · US

Funding

MOLECULAR STUDY OF CARDIOGENESISR01HL035561 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI ORDAHL, CHARLES P · 1985 to 2002
$739k
MUSCLE ENRICHED TRANSCRIPTION FACTORF05TW004892 · FIC · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI LARKIN, SARAH B · 1993 to 1994
–
STRUCTURE ANALYSIS OF PROTEINS INVOLVED IN CARDIOVASCULAR FUNCTION/DEVELOPMENTP01HL043821 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI WILLIAMS, LEWIS T · 1989 to 1996
–
FIC NIH HHS F05 TWO4892-02NHLBI NIH HHS HL-35561NHLBI NIH HHS HL-43821
6 · The paper itself

Abstract

M-CAT elements mediate both muscle-specific and non-muscle-specific transcription. We used artificial promoters to dissect M-CAT elements derived from the cardiac troponin T promoter, whose regulation is highly striated muscle specific. We show that muscle-specific M-CAT-dependent expression requires two distinct components: the core heptameric M-CAT motif (5'-CATTCCT-3'), which constitutes the canonical binding site for TEF-1-related proteins, and specific sequences immediately flanking the core motif that bind an additional factor(s). These factors are found in higher-order M-CAT DNA-protein complexes with TEF-1 proteins. Non-muscle-specific promoters are produced when the sequences flanking the M-CAT motif are removed or modified to match those of non-muscle-specific promoters such as the simian virus 40 promoter. Moreover, a mutation of the 5'-flanking region of the cardiac troponin T M-CAT-1 element upregulated expression in nonmuscle cells. That mutation also disrupts a potential E box that apparently does not bind myogenic basic helix-loop-helix proteins. We propose a model in which M-CAT motifs are potentially active in many cell types but are modulated through protein binding to specific flanking sequences. In nonmuscle cells, these flanking sequences bind a factor(s) that represses M-CAT-dependent activity. In muscle cells, on the other hand, the factor(s) binding to these flanking sequences contributes to both the cell specificity and the overall transcriptional strength of M-CAT-dependent promoters.

Indexed as

Promoter Regions, GeneticRegulatory Sequences, Nucleic AcidTranscription, GeneticAnimalsBase SequenceBinding SitesChick EmbryoDNA-Binding ProteinsDNA FootprintingMethylationMolecular Sequence DataMuscle, SkeletalNuclear ProteinsOligodeoxyribonucleotidesOligonucleotide ProbesOrgan SpecificityDNA-Binding ProteinsNuclear ProteinsOligodeoxyribonucleotidesOligonucleotide ProbesTEAD1 protein, humanTEA Domain Transcription FactorsTranscription FactorsTroponinTroponin T

Identifiers

PMID8668191
PMCPMC231370
OpenAlexW2155365737

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.