Title
Reaction motifs in metabolic networks
Abstract
The classic view of metabolism as a collection of metabolic pathways is being questioned with the currently available possibility of studying whole networks. Novel ways of decomposing the network into modules and motifs that could be considered as the building blocks of a network are being suggested. In this work, we introduce a new definition of motif in the context of metabolic networks. Unlike in previous works on (other) biochemical networks, this definition is not based only on topological features. We propose instead to use an alternative definition based on the functional nature of the components that form the motif. After introducing a formal framework motivated by biological considerations, we present complexity results on the problem of searching for all occurrences of a reaction motif in a network, and introduce an algorithm that is fast in practice in most situations. We then show an initial application to the study of pathway evolution.
Year
DOI
Venue
2005
10.1007/11557067_15
WABI
Keywords
Field
DocType
metabolic network,biochemical network,building block,available possibility,whole network,metabolic pathway,biological consideration,reaction motif,new definition,alternative definition
Graph,Computer science,Bipartite graph,Metabolic network,Motif (music),Formal methods,Bioinformatics,Subgraph isomorphism problem
Conference
Volume
ISSN
ISBN
3692
0302-9743
3-540-29008-7
Citations 
PageRank 
References 
7
0.69
7
Authors
3
Name
Order
Citations
PageRank
Vincent Lacroix130121.03
Cristina G. Fernandes226029.98
Marie-France Sagot31337109.23