Evidence map›Paper›PMID 19426456›Full record

ArticleBMC bioinformatics2009

Core and periphery structures in protein interaction networks.

Feng Luo, Bo Li, Xiu-Feng Wan, Richard H Scheuermann

Open access · goldAbstract read
In one paragraph

Article in BMC bioinformatics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. 'Intelligent' proteins.Cellular and molecular life sciences : CMLS · 2025
    Review
  3. Article
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  6. Multiplex core-periphery organization of the human connectome.Journal of the Royal Society, Interface · 2018
    Article
  7. Article
  8. Modelling the yeast interactome.Scientific reports · 2014
    Article
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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

4 authors at 3 institutions in 1 country.

Feng LuoSchool of Computing, Clemson University, Clemson, SC, USA. luofeng@clemson.edu
Bo Li
Xiu-Feng Wan
Richard H Scheuermann
Clemson University · USGeorgia Institute of Technology · USThe University of Texas Southwestern Medical Center · US

Funding

NIAID NIH HHS N01 AI040041NIAID NIH HHS N01 AI040076NIAID NIH HHS N01-AI40041NIAID NIH HHS N01-AI40076
6 · The paper itself

Abstract

backgroundCharacterizing the structural properties of protein interaction networks will help illuminate the organizational and functional relationships among elements in biological systems.

resultsIn this paper, we present a systematic exploration of the core/periphery structures in protein interaction networks (PINs). First, the concepts of cores and peripheries in PINs are defined. Then, computational methods are proposed to identify two types of cores, k-plex cores and star cores, from PINs. Application of these methods to a yeast protein interaction network has identified 110 k-plex cores and 109 star cores. We find that the k-plex cores consist of either "party" proteins, "date" proteins, or both. We also reveal that there are two classes of 1-peripheral proteins: "party" peripheries, which are more likely to be part of protein complex, and "connector" peripheries, which are more likely connected to different proteins or protein complexes. Our results also show that, besides connectivity, other variations in structural properties are related to the variation in biological properties. Furthermore, the negative correlation between evolutionary rate and connectivity are shown toysis. Moreover, the core/periphery structures help to reveal the existence of multiple levels of protein expression dynamics.

conclusionOur results show that both the structure and connectivity can be used to characterize topological properties in protein interaction networks, illuminating the functional organization of cellular systems.

Indexed as

AlgorithmsProtein Interaction MappingComputational BiologyDatabases, ProteinProteinsProtein Structure, TertiaryProteins

Identifiers

PMID19426456
PMCPMC2681073
OpenAlexW2154611785

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.