Pathways Database System: An Integrated System For Biological Pathways L. Krishnamurthy, J. Nadeau, G. Ozsoyoglu, M. Ozsoyoglu, G. Schaeffer, M. Tasan and W. Xu Bioinformatics Vol. 19 no Pages Presented by Mohamed Uduman Bioinformatics Computing II Spring 043
Outline Background Pathways Database System Architecture of the system Data model Tools of the Pathways Database System Other pathway tools Future Developments Conclusion Questions
Background Genome sequencing – what to do with data? DNA sequence good for analyzing Organization Evolution Mutation Biological Pathways “Pathways are the sequential and cumulative action of genetically distinct but functionally related molecules.”
Background Biological Pathways Metabolic & biochemical Transcription & protein synthesis Signal Transduction
Pathways Database System Genomic pathway information: Store / manage Analyze Visualize Query Features GUI tools Multiple abstraction levels for viewing information XML output
Architecture Pathways Browser Browser Tool Visualization Tool Querying Tool Services Data Extraction Querying Services Relational Database Pathways DB HTTPSOAP
Pathways Data Model Molecular entity Basic molecules (protein, enzyme, gene, amino acid, substrate, co-factors etc...) Process Reaction between molecular entities Pathways Interconnection of processes
Pathways Browser Tree pane Query result pane Visualization pane
Browser Tool
Visualization Tool
Querying Tool
Querying Service (QRS) Query functions submit predefined queries Results passed as XML Supports SOAP / HTTP protocols
Query Functions Basic query Statistical query Neighborhood query Path-finding query
Other Pathway Tools Biocarta ExPASy Biochemical pathways Signaling Pathway database PathDB Gene Ontology
Future Developments Ability to add new pathways Ability to modify views Incorporating GO Enhance the visualization tool
Conclusion Pathways Database System is an integrated system for storing, analyzing and visualizing biology pathways. Biological pathways show the “bigger picture”
Questions or Comments ? Presented by Mohamed Uduman Bioinformatics Computing II Spring 043