Co-Authors:
Levy, R., University of Washington, Department of Genome Sciences, Seattle, WA, United States
Carr, R., University of Washington, Department of Genome Sciences, Seattle, WA, United States
Kreimer, A., Center for Computational Biology, UC Berkeley, Department of Electrical Engineering and Computer Science, Berkeley, CA, United States, UCSF, Department of Bioengineering and Therapeutic Sciences, San Francisco, CA, United States
Freilich, S., Agricultural Research Organization, Newe Ya'ar Research Center, Ramat Yishay, Israel
Borenstein, E., University of Washington, Department of Genome Sciences, Seattle, WA, United States, University of Washington, Department of Computer Science and Engineering, Seattle, WA, United States, Santa Fe Institute, Santa Fe, NM, United States
Abstract:
Background: Host-microbe and microbe-microbe interactions are often governed by the complex exchange of metabolites. Such interactions play a key role in determining the way pathogenic and commensal species impact their host and in the assembly of complex microbial communities. Recently, several studies have demonstrated how such interactions are reflected in the organization of the metabolic networks of the interacting species, and introduced various graph theory-based methods to predict host-microbe and microbe-microbe interactions directly from network topology. Using these methods, such studies have revealed evolutionary and ecological processes that shape species interactions and community assembly, highlighting the potential of this reverse-ecology research paradigm. Results: NetCooperate is a web-based tool and a software package for determining host-microbe and microbe-microbe cooperative potential. It specifically calculates two previously developed and validated metrics for species interaction: the Biosynthetic Support Score which quantifies the ability of a host species to supply the nutritional requirements of a parasitic or a commensal species, and the Metabolic Complementarity Index which quantifies the complementarity of a pair of microbial organisms' niches. NetCooperate takes as input a pair of metabolic networks, and returns the pairwise metrics as well as a list of potential syntrophic metabolic compounds. Conclusions: The Biosynthetic Support Score and Metabolic Complementarity Index provide insight into host-microbe and microbe-microbe metabolic interactions. NetCooperate determines these interaction indices from metabolic network topology, and can be used for small- or large-scale analyses. NetCooperate is provided as both a web-based tool and an open-source Python module; both are freely available online at http://elbo.gs.washington.edu/software_netcooperate.html. © 2015 Levy et al.
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