Conversion of KEGG metabolic pathways to SBGN maps including automatic layout
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Zusammenfassung
Background
Biologists make frequent use of databases containing large and complex biological networks. One popular database is the Kyoto Encyclopedia of Genes and Genomes (KEGG) which uses its own graphical representation and manual layout for pathways. While some general drawing conventions exist for biological networks, arbitrary graphical representations are very common. Recently, a new standard has been established for displaying biological processes, the Systems Biology Graphical Notation (SBGN), which aims to unify the look of such maps. Ideally, online repositories such as KEGG would automatically provide networks in a variety of notations including SBGN. Unfortunately, this is nonātrivial, since converting between notations may add, remove or otherwise alter map elements so that the existing layout cannot be simply reused.
Results
Here we describe a methodology for automatic translation of KEGG metabolic pathways into the SBGN format. We infer important properties of the KEGG layout and treat these as layout constraints that are maintained during the conversion to SBGN maps.
Conclusions
This allows for the drawing and layout conventions of SBGN to be followed while creating maps that are still recognizably the original KEGG pathways. This article details the steps in this process and provides examples of the final result.
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CZAUDERNA, Tobias, Michael WYBROW, Kim MARRIOTT, Falk SCHREIBER, 2013. Conversion of KEGG metabolic pathways to SBGN maps including automatic layout. In: BMC Bioinformatics. 2013, 14, 250. eISSN 1471-2105. Available under: doi: 10.1186/1471-2105-14-250BibTex
@article{Czauderna2013Conve-38645,
year={2013},
doi={10.1186/1471-2105-14-250},
title={Conversion of KEGG metabolic pathways to SBGN maps including automatic layout},
volume={14},
journal={BMC Bioinformatics},
author={Czauderna, Tobias and Wybrow, Michael and Marriott, Kim and Schreiber, Falk},
note={Article Number: 250}
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<dcterms:abstract xml:lang="eng">Background<br />Biologists make frequent use of databases containing large and complex biological networks. One popular database is the Kyoto Encyclopedia of Genes and Genomes (KEGG) which uses its own graphical representation and manual layout for pathways. While some general drawing conventions exist for biological networks, arbitrary graphical representations are very common. Recently, a new standard has been established for displaying biological processes, the Systems Biology Graphical Notation (SBGN), which aims to unify the look of such maps. Ideally, online repositories such as KEGG would automatically provide networks in a variety of notations including SBGN. Unfortunately, this is nonātrivial, since converting between notations may add, remove or otherwise alter map elements so that the existing layout cannot be simply reused.<br /><br />Results<br />Here we describe a methodology for automatic translation of KEGG metabolic pathways into the SBGN format. We infer important properties of the KEGG layout and treat these as layout constraints that are maintained during the conversion to SBGN maps.<br /><br />Conclusions<br />This allows for the drawing and layout conventions of SBGN to be followed while creating maps that are still recognizably the original KEGG pathways. This article details the steps in this process and provides examples of the final result.</dcterms:abstract>
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