Title
A microarray data-based semi-kinetic method for predicting quantitative dynamics of genetic networks.
Abstract
BACKGROUND: Elucidating the dynamic behaviour of genetic regulatory networks is one of the most significant challenges in systems biology. However, conventional quantitative predictions have been limited to small networks because publicly available transcriptome data has not been extensively applied to dynamic simulation. RESULTS: We present a microarray data-based semi-kinetic (MASK) method which facilitates the prediction of regulatory dynamics of genetic networks composed of recurrently appearing network motifs with reasonable accuracy. The MASK method allows the determination of model parameters representing the contribution of regulators to transcription rate from time-series microarray data. Using a virtual regulatory network and a Saccharomyces cerevisiae ribosomal protein gene module, we confirmed that a MASK model can predict expression profiles for various conditions as accurately as a conventional kinetic model. CONCLUSION: We have demonstrated the MASK method for the construction of dynamic simulation models of genetic networks from time-series microarray data, initial mRNA copy number and first-order degradation constants of mRNA. The quantitative accuracy of the MASK models has been confirmed, and the results indicated that this method enables the prediction of quantitative dynamics in genetic networks composed of commonly used network motifs, which cover considerable fraction of the whole network.
Year
DOI
Venue
2005
10.1186/1471-2105-6-299
BMC Bioinformatics
Keywords
Field
DocType
network motif,systems biology,computational biology,first order,algorithms,dynamic simulation,gene expression regulation,proteomics,genomics,gene expression profiling,copy number,microarrays,computer simulation,bioinformatics,time series,microarray data,ribosomes,system biology,escherichia coli,kinetics
Network motif,Biology,Proteomics,Amino Acid Motifs,Systems biology,Genomics,Microarray analysis techniques,Bioinformatics,Genetics,DNA microarray,Dynamic simulation
Journal
Volume
Issue
ISSN
6
1
1471-2105
Citations 
PageRank 
References 
26
0.47
3
Authors
5
Name
Order
Citations
PageRank
Katsuyuki Yugi118942.63
Yoichi Nakayama2976.83
Shigen Kojima3260.47
Tomoya Kitayama4301.27
Masaru Tomita51009180.20