Evidence map›Paper›PMID 21345328›Full record

ReviewArchives of biochemistry and biophysics2011

The significance of regulatory light chain phosphorylation in cardiac physiology.

Sarah B Scruggs, R John Solaro

Abstract readReview
In one paragraph

Review in Archives of biochemistry and biophysics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

59 citing papers in PubMed, 93 citations in OpenAlex.

  1. Evidence for a role of adverse sarcomere signaling in atrial fibrillation induction.Journal of molecular and cellular cardiology plus · 2026
    Review
  2. Spatial control of myosin regulatory light chain phosphorylation modulates cardiac thick filament mechanosensing.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Regulation of myosin light-chain phosphorylation and its roles in cardiovascular physiology and pathophysiology.Hypertension research : official journal of the Japanese Society of Hypertension · 2022
    Review
  8. Article
  9. Article
  10. Article
  11. Regulatory Light Chains in Cardiac Development and Disease.International journal of molecular sciences · 2021
    Review
  12. Stress-dependent activation of myosin in the heart requires thin filament activation and thick filament mechanosensing.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. HeterozygousFrontiers in physiology · 2019
    Article
  20. Article
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

2 authors at 2 institutions in 1 country.

Sarah B ScruggsUniversity of California Los Angeles, Department of Physiology, Division of Cardiology, 90095, USA.
R John Solaro
University of California, Los Angeles · USUniversity of Illinois Chicago · US

Funding

Sarcomeric Modifications and Progressive Cardiac MaladaptationP01HL062426 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI AI, XUN · 2000 to 2020
$42.4M
TRAINING IN CELLULAR SIGNALLING IN THE CARDIOVASCULAR SYT32HL007692 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SOLARO, R JOHN · 1990 to 2014
$8.5M
Troponin Mudulation in Heart FailureR01HL064035 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SOLARO, R JOHN, WOLSKA, BEATA M. · 2000 to 2013
$4.7M
MODULATION OF CALCIUM CONTROL OF CARDIAC MYOFIBRILSR01HL022231 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GUPTA, MADHU, SOLARO, R JOHN · 1985 to 2014
$2.9M
Acute and Chronic Regulation of 20S Proteasome Function by cAMP-Dependent KinaseF32HL099029 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SCRUGGS, SARAH · 2010 to 2012
$153k
NHLBI NIH HHS F32 HL099029NHLBI NIH HHS P01 HL062426NHLBI NIH HHS P01 HL 62426NHLBI NIH HHS R01 HL022231NHLBI NIH HHS R01 HL064035NHLBI NIH HHS T32 HL007692
6 · The paper itself

Abstract

It has been over 35 years since the first identification of phosphorylation of myosin light chains in skeletal and cardiac muscle. Yet only in the past few years has the role of these phosphorylations in cardiac dynamics been more fully understood. Advances in this understanding have come about with further evidence on the control mechanisms regulating the level of phosphorylation by kinases and phosphatases. Moreover, studies clarifiying the role of light chain phosphorylation in short and long term control of cardiac contractility and as a factor in cardiac remodeling have improved our knowledge. Especially important in these advances has been the use of gain and loss of function approaches, which have not only testedthe role of kinases and phosphatases, but also the effects of loss of RLC phosphorylation sites. Major conclusions from these studies indicate that (i) two negatively-charged post-translational modifications occupy the ventricular RLC N-terminus, with mouse RLC being doubly phosphorylated (Ser 14/15), and human RLC being singly phosphorylated (Ser 15) and singly deamidated(Asn14/16 to Asp); (ii)a distinct cardiac myosin light kinase (cMLCK) and a unique myosin phosphatase targeting peptide (MYPT2) control phosphoryl group transfer;and (iii) ablation of RLC phosphorylationdecreases ventricular power, lengthens the duration of ventricular ejection, and may also modify other sarcomeric proteins (e.g., troponin I) as substrates for kinases and/or phosphatases. A long term effect of low levels of RLC phosphorylation in mouse models also involves remodeling of the heart with hypertrophy, depressed contractility, and sarcomeric disarray. Data demonstrating altered levels of RLC phosphorylation in comparisons of samples from normal and stressed human hearts indicate the significance of these findings in translational medicine.

Indexed as

Amino Acid SequenceAnimalsHeartHumansMolecular Sequence DataMyosin-Light-Chain KinaseMyosin-Light-Chain PhosphataseMyosin Light ChainsPhosphorylationMyosin-Light-Chain KinaseMyosin-Light-Chain PhosphataseMyosin Light Chains

Identifiers

PMID21345328
PMCPMC3114105
OpenAlexW2054603530

What OpenQuestion holds

Textmetadata
LicenceTDM
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.