title: Quantitative information management for the biochemical computation of cellular networks.
abstract: Understanding complex protein networks within cells requires the ability to develop quantitative models and to numerically compute the properties and behavior of the networks. To carry out such computational analysis, it is necessary to use modeling tools and information management systems (IMSs) where the quantitative data, associated to its biological context, can be stored, curated, and reliably retrieved. We have focused on the biochemical computation of cellular interactions and developed an IMS that stores both quantitative information on the cellular components and their interactions, and the basic reactions governing those interactions. This information can be used to construct pathways and eventually large-scale networks. This system, SigPath, is available on the Internet (http://www.sigpath.org). Key features of the approach include (i) the use of background information (for example, names of molecules, aliases, and accession codes) to ease data submission and link this quantitative database with other qualitative databases, (ii) a strategy to allow refinement of information over time by multiple users, (iii) the development of a data representation that stores both qualitative and quantitative information, and (iv) features to assist contributors and users in assembling custom quantitative models from the information stored in the IMS. Currently, models assembled in SigPath can be automatically exported to several computing environments, such as Kinetikit/Genesis, Virtual Cell, Jarnac/JDesigner, and JSim. We anticipate that, when appropriately populated, such a system will be useful for large-scale quantitative studies of cell-signaling networks and other cellular networks. SigPath is distributed under the GNU General Public License.
authors.affiliation: Department of Physiology and Biophysics and Institute for Computational Biomedicine, Weill Medical College of Cornell University, New York, NY, 10021, USA. fac2003@med.cornell.edu
authors.forename: Fabien
authors.initials: F
authors.lastname: Campagne
authors.forename: Susana
authors.initials: S
authors.lastname: Neves
authors.forename: Chiung-wen
authors.initials: CW
authors.lastname: Chang
authors.forename: Lucy
authors.initials: L
authors.lastname: Skrabanek
authors.forename: Prahlad T
authors.initials: PT
authors.lastname: Ram
authors.forename: Ravi
authors.initials: R
authors.lastname: Iyengar
authors.forename: Harel
authors.initials: H
authors.lastname: Weinstein
mesh_terms: D000818:Animals; D019295:Computational Biology; D030541:Databases, Genetic; D006801:Humans; D020407:Internet; D008331:Management Information Systems; D008954:Models, Biological; D046912:Multiprotein Complexes; D015398:Signal Transduction
chemical_list: D046912:Multiprotein Complexes