Metabolic pathway alignment between species using a comprehensive and flexible similarity measure.
Metabolic pathway alignment between species using a comprehensive and flexible similarity measure.
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DOI:
10.1186/1752-0509-2-111
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发表时间:
2008-12-24
影响因子:
--
通讯作者:
Reinders MJ
中科院分区:
文献类型:
--
作者:
Li Y;de Ridder D;de Groot MJ;Reinders MJ
Comparative analysis of metabolic networks in multiple species yields important information on their evolution, and has great practical value in metabolic engineering, human disease analysis, drug design etc. In this work, we aim to systematically search for conserved pathways in two species, quantify their similarities, and focus on the variations between them. We present an efficient framework, Metabolic Pathway Alignment and Scoring (M-PAS), for identifying and ranking conserved metabolic pathways. M-PAS aligns all reactions in entire metabolic networks of two species and assembles them into pathways, taking mismatches, gaps and crossovers into account. It uses a comprehensive scoring function, which quantifies pathway similarity such that we can focus on different pathways given different biological motivations. Using M-PAS, we detected 1198 length-four pathways fully conserved between Saccharomyces cerevisiae and Escherichia coli, and also revealed 1399 cases of a species using a unique route in otherwise highly conserved pathways. Our method efficiently automates the process of exploring reaction arrangement possibilities, both between species and within species, to find conserved pathways. We not only reconstruct conventional pathways such as those found in KEGG, but also discover new pathway possibilities. Our results can help to generate hypotheses on missing reactions and manifest differences in highly conserved pathways, which is useful for biology and life science applications.
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影响因子:
14.9
作者:
UniProt Consortium
通讯作者:
UniProt Consortium
DOI:
10.1073/pnas.0508647102
发表时间:
2005-11-29
影响因子:
11.1
作者:
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通讯作者:
Bolouri, H
影响因子:
5.6
作者:
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通讯作者:
van Helden, J
影响因子:
5.8
作者:
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通讯作者:
Valiente, Gabriel
影响因子:
5.8
作者:
Zhenping, Li;Zhang, Shihua;Chen, Luonan
通讯作者:
Chen, Luonan