Evidence map›Paper›PMID 18434443›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2008

Intergenic bidirectional promoter and cooperative regulation of the IIx and IIb MHC genes in fast skeletal muscle.

Chiara Rinaldi, Fadia Haddad, Paul W Bodell, Anqi X Qin, Weihua Jiang, Kenneth M Baldwin

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed, 34 citations in OpenAlex.

  1. Developmental, physiologic and phylogenetic perspectives on the expression and regulation of myosin heavy chains in mammalian skeletal muscles.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2023
    Review
  2. Review
  3. Article
  4. Article
  5. Article
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  7. Skeletal muscle: A review of molecular structure and function, in health and disease.Wiley interdisciplinary reviews. Systems biology and medicine · 2020
    Review
  8. ChickenOncotarget · 2017
    Article
  9. Article
  10. Natural antisense transcripts.Human molecular genetics · 2014
    Review
  11. Article
  12. Article
  13. Article
  14. The continuum of hybrid IIX/IIB fibers in normal mouse muscles: MHC isoform proportions and spatial distribution within single fibers.American journal of physiology. Regulatory, integrative and comparative physiology · 2010
    Article
  15. Article
  16. Article
  17. Article
  18. Calcineurin plays a modulatory role in loading-induced regulation of type I myosin heavy chain gene expression in slow skeletal muscle.American journal of physiology. Regulatory, integrative and comparative physiology · 2009
    Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Chiara RinaldiPhysiology and Biophysics Department, University of California Irvine, Irvine, CA, USA.
Fadia Haddad
Paul W Bodell
Anqi X Qin
Weihua Jiang
Kenneth M Baldwin
University of California, Irvine · US

Funding

TRANSCRIPTIONAL CONTROL OF TYPE I AND IIB MHC GENESR01AR030346 · NIAMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI BALDWIN, KENNETH M. · 1986 to 2009
$3.5M
NIAMS NIH HHS AR-30346
6 · The paper itself

Abstract

This study investigated the dynamic regulation of IIx-IIb MHC genes in the fast white medial gastrocnemius (WMG) muscle in response to intermittent resistance exercise training (RE), a model associated with a rapid shift from IIb to IIx expression (11). We investigated the effect of 4 days of RE on the transcriptional activity across the skeletal MHC gene locus in the WMG in female Sprague-Dawley rats. Our results show that RE resulted in significant shifts from IIb to IIx observed at both the pre-mRNA and mRNA levels. An antisense RNA (xII NAT) was detected in the intergenic (IG) region between IIx and IIb, extending across the entire IIx gene and into its promoter. The expression of the xII NAT was positively correlated with IIb pre-mRNA (R = +0.8), and negatively correlated with IIx pre-mRNA (R = -0.8). Transcription mapping of the IIx-IIb IG region revealed the generation of sense IIb and xII NATs from a single promoter region. This bidirectional promoter is highly conserved among species and contains several regulatory elements that may be implicated in its regulation. These results suggest that the IIx and the IIb genes are physically and functionally linked via the bidirectional promoter. In order for the IIx MHC gene to be regulated, a feedback mechanism from the IG xII NAT is needed. In conclusion, the IG bidirectional promoter generating antisense RNA appears to be essential for the coordinated regulation of the skeletal muscle MHC genes during dynamic phenotype shifts.

Indexed as

AnimalsBase SequenceComputer SimulationFemaleGene DuplicationGene Expression RegulationGenes, MHC Class IIHaplorhiniHumansMiceMolecular Sequence DataMotor ActivityMultigene FamilyMuscle Fibers, Fast-TwitchPromoter Regions, GeneticProtein IsoformsProtein IsoformsRNA, Antisense

Identifiers

PMID18434443
PMCPMC2494810
OpenAlexW2144327890

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.