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Category Cross-Omics>Agent-Based Modeling/Simulation/Tools Abstract PROTON (PROTotyping Object Networks) is an Integrative Modeling System (IMS). The purpose of the system is to support the modeling of large-scale systems by using integrative methods. Each installation of PROTON supports multiple users and it accesses different data-sources. The models are stored in separate services which are transparently managed by the system. The manufacturers approach includes models for the design of biochemical networks as objects, processes and systems. At the start, information from dynamically adopted data-sources are extracted and fused as molecular objects. In the second step, biochemical processes are identified interactively and large-scale state charts are automatically constructed from integrated data. Finally, networks of reactions are detected in the state charts and they are used to step wisely build the structure of the dynamic systems. PROTON Data-sources -- PROTON is using content from molecular databases for the integrative modeling of biochemical networks. To extract information from data- sources you must have a login for each system. Without any further tools PROTON is only able to access relational databases (MySQL, Oracle, PostgreSQL) for the extraction of information. If you want to access non-standard databases (flat-files, websites etc.) the mediator BioDataServer (BioDataServer is an integrated information system of molecular and clinical data that integrates various databases) has to be plugged between PROTON and the data-source. For evaluation purposes, the manufacturer installed several molecular databases at their site related to the topic of gene regulatory networks, e. g. BIND, DIP, Ecocyc (see G6G Product Number 20231), MINT, RegulonDB, TRANSFAC (see G6G Product Number 20121), and UniProt using the manufacturers local relational database system. Furthermore, BioDataServer is providing a virtual relational access to the ‘molecular databases’ KEGG, BRENDA, MD-Cave and OMIM. Note: PROTON is Not providing the molecular databases. PROTON Objects -- The object layer of PROTON is an object-oriented modeling system. Because modeling is user-centric, each user has to be enabled to dynamically define his own types of molecular objects which should be part of a metabolic network. In addition, the flexible extraction, integration and fusion of information from different molecular data-sources lead to an automated construction of object-oriented metabolic networks. These on-the-fly generated networks are analyzed using interactive ad hoc queries. For the specification of the model the manufacturer uses the 'static classes' diagram which is part of the Unified Modeling Language (UML) standard. Internally the manufacturer uses the CORBA IDL specification. This is the reason why the structure and the content of each model can be easily integrated into object-oriented (OO) applications. PROTON Processes -- 'State charts' provide a dynamic view of biochemical networks. In the process layer of PROTON only the structure of state charts have to be modeled. Then using a specific view concept, state charts are automatically constructed from the objects formerly integrated into the model. Each view represents a different interpretation of the integrated information. Different implemented graph-based queries are used to search for networks inside the automatically generated state charts. The pathways found can then be exported to different formats, e.g. Graph Modeling Language (GML), MetaTool and Systems Biology Markup Language (SBML). PROTON Systems -- The modeling of mechanistic systems requires the definition of the systems structure. Using the manufacturer's integrative approach, large-scale networks stemming form molecular databases are automatically included in models of biochemical systems. By assigning functions to each reaction, defining initial states and computing time courses the dynamic behavior of a biochemical systems is made available. The manufacturer's simulation model computes 'continuous processes' as well as 'discrete events'. Models can be save in the SBML format for further computing, e.g. for the optimization or the structural analysis of a system. System Requirements Contact manufacturer Manufacturer
German Research Council (DFG). Andreas Freier Bioinformatics and Medical Informatics Department Technical Faculty Bielefeld University Germany E-mail: afreier@techfak.uni-bielefeld.de Manufacturer's Web Site http://tunicata.techfak.uni-bielefeld.de/proton/web/main.jsp?dir=Overview Price Contact manufacturer G6G Product Number 20454 G6G Manufacturer Number 104081 |
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