Evidence map›Paper›PMID 2108970›Full record

ArticleThe Journal of cell biology1990

Differential distribution of subsets of myofibrillar proteins in cardiac nonstriated and striated myofibrils.

T Schultheiss, Z X Lin, M H Lu, J Murray, D A Fischman, K Weber, T Masaki, M Imamura, H Holtzer

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1990. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
10.4field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 211 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Resolving titin's lifecycle and the spatial organization of protein turnover in mouse cardiomyocytes.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  5. Extracellular Matrix in Regulation of Contractile System in Cardiomyocytes.International journal of molecular sciences · 2019
    Review
  6. Article
  7. Article
  8. Review
  9. Understanding cardiac sarcomere assembly with zebrafish genetics.Anatomical record (Hoboken, N.J. : 2007) · 2014
    Review
  10. Article
  11. Tropomyosin is required for cardiac morphogenesis, myofibril assembly, and formation of adherens junctions in the developing mouse embryo.Developmental dynamics : an official publication of the American Association of Anatomists · 2014
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. The initial steps of myofibril assembly: integrins pave the way.Nature reviews. Molecular cell biology · 2009
    Review

2 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

9 authors at 1 institution in 2 countries.

T SchultheissDepartment of Anatomy, School of Medicine, University of Pennsylvania, Philadelphia 19104.
Z X Lin
M H Lu
J Murray
D A Fischman
K Weber
T Masaki
M Imamura
H Holtzer
University of Pennsylvania · US

Funding

CONVERSION OF EMBRYONIC CELLS INTO TRANSFORMED CELLSR01CA018194 · NCI · UNIVERSITY OF PENNSYLVANIA · PI HOLTZER, HOWARD · 1985 to 1990
–
NCI NIH HHS CA-18194NHLBI NIH HHS HL-15853NICHD NIH HHS HD-07152
6 · The paper itself

Abstract

Cultured cardiac myocytes were stained with antibodies to sarcomeric alpha-actinin, troponin-I, alpha-actin, myosin heavy chain (MHC), titin, myomesin, C-protein, and vinculin. Attention was focused on the distribution of these proteins with respect to nonstriated myofibrils (NSMFs) and striated myofibrils (SMFs). In NSMFs, alpha-actinin is found as longitudinally aligned, irregular approximately 0.3-microns aggregates. Such aggregates are associated with alpha-actin, troponin-I, and titin. These I-Z-I-like complexes are also found as ectopic patches outside the domain of myofibrils in close apposition to the ventral surface of the cell. MHC is found outside of SMFs in the form of discrete fibrils. The temporal-spatial distribution and accumulation of the MHC-fibrils with respect to the I-Z-I-like complexes varies greatly along the length of the NSMFs. There are numerous instances of I-Z-I-like complexes without associated MHC-fibrils, and also cases of MHC-fibrils located many microns from I-Z-I-like complexes. The transition between the terminal approximately 1.7-microns sarcomere of any given SMF and its distal NSMF-tip is abrupt and is marked by a characteristic narrow alpha-actinin Z-band and vinculin positive adhesion plaque. A titin antibody T20, which localizes to an epitope at the Z-band in SMFs, precisely costains the 0.3-microns alpha-actinin aggregates in ectopic patches and NSMFs. Another titin antibody T1, which in SMFs localizes to an epitope at the A-I junction, typically does not stain ectopic patches and NSMFs. Where detectable, the T1-positive material is adjacent to rather than part of the 0.3-microns alpha-actinin aggregates. Myomesin and C-protein are found only in their characteristic sarcomeric locations (even in just perceptible SMFs). These A-band-associated proteins appear to be absent in ectopic patches and NSMFs.

Indexed as

Protein KinasesActininActinsAnimalsAntibodies, MonoclonalCarrier ProteinsCells, CulturedChick EmbryoConnectinCytoskeletal ProteinsFibroblastsFluorescent Antibody TechniqueMuscle ProteinsMyocardiumMyofibrilsMyosin Binding Protein CActininActinsAntibodies, MonoclonalCarrier ProteinsConnectinCytoskeletal ProteinsMuscle ProteinsMyosin Binding Protein CMyosin SubfragmentsProtein KinasesTroponinTroponin IVinculin

Identifiers

PMID2108970
PMCPMC2116089
OpenAlexW2081740469

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.