Cited by 25Gene Regulatory Network AnalysisBioinformatics and Genomic NetworksMicrobial Metabolic Engineering and Bioproduction

Complexity and modularity of intracellular networks: a systematic approach for modelling and simulation.

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Blinov, M.L., Ruebenacker, O., Moraru, I.I.·2008·IET Systems Biology

Abstract

Assembly of quantitative models of large complex networks brings about several challenges. One of them is the combinatorial complexity, where relatively few signalling molecules can combine to form thousands or millions of distinct chemical species. A receptor that has several separate phosphorylation sites can exist in hundreds of different states, many of which must be accounted for individually when simulating the time course of signalling. When assembly of protein complexes is being included, the number of distinct molecular species can easily increase by a few orders of magnitude. Validation, visualisation and understanding the network can become intractable. Another challenge appears when the modeller needs to recast or grow a model. Keeping track of changes and adding new elements present a significant difficulty. An approach to solve these challenges within the virtual cell (VCell) is described. Using (i) automatic extraction from pathway databases of model components (http://vcell.org/biopax) and (ii) rules of interactions that serve as reaction network generators (http://vcell.org/bionetgen), a way is provided for semi-automatic generation of quantitative mathematical models that also facilitates the reuse of model elements. In this approach, kinetic models of large, complex networks can be assembled from separately constructed modules, either directly or via rules. To implement this approach, the strength of several related technologies is combined: the BioPAX ontology, the BioNetGen rule-based description of molecular interactions and the VCell modelling and simulation framework.

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Authors
Blinov, M. L., Ruebenacker, O., & Moraru, I. I.
Affiliations
UConn Health (US)
Venue
IET Systems Biology
Published
2008-09-15
Volume
2
Issue
5
Pages
363-368
ISSN
  • 1751-8849 (ISSN-L)
  • 1751-8857
OpenAlex
W1995948702
Cited by
25
References
27
Citations by year
2024: 2 · 2022: 2 · 2021: 3 · 2020: 1 · 2019: 1 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 2 · 2012: 1
FWCI
1.10
Type
journal article
Language
en
Open access
Locations
  • IET Systems Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5u54rr022232-05)
  • National Institute of General Medical Sciences (R01GM076570)
  • National Center for Research Resources (U54-RR022232)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
combinatorial complexity, reaction network generation, BioPAX, BioNetGen, Virtual Cell, semi-automatic model generation, model reuse, protein complex formation, kinetic model, pathway databases
MeSH terms
Computer Simulation, Gene Expression Regulation, Models, Biological, Models, Statistical, Signal Transduction, Proteome

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