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KEGG PATHWAY Database (Univ. of Kyoto) MANET database (University of Illinois) Reactome: navigable map of human biological pathways, ranging from metabolic processes to hormonal signalling (Ontario Institute for Cancer Research, European Bioinformatics Institute, NYU Langone Medical Center, Cold Spring Harbor Laboratory)
Reactome is a free online database of biological pathways. [ 1 ] [ 2 ] [ 3 ] It is manually curated and authored by PhD-level biologists, in collaboration with Reactome editorial staff. The content is cross-referenced to many bioinformatics databases.
Systems Biology Pathway Exchange (SBPAX) is an extension for Level 3 and proposal for Level 4 to add quantitative data and systems biology terms (such as Systems Biology Ontology). SBPAX export has been implemented by the pathway databases Signaling Gateway Molecule Pages, [1] and the SABIO-Reaction Kinetics Database.
All pathways have an open license and can be freely used. Reactome is a free and manually curated online database of biological pathways. NCI-Nature Pathway Interaction Database is a free biomedical database of human cellular signaling pathways (new official name: NCI Nature Pathway Interaction Database: Pathway, synonym: PID).
Based on the manual curation done, BioCyc database family is divided into 3 tiers: Tier 1: Databases which have received at least one year of literature based manual curation. Currently there are seven databases in Tier 1. Out of the seven, MetaCyc is a major database that contains almost 2500 metabolic pathways from many organisms.
Using the web-interface of the database, one can perform overrepresentation analysis, based on biochemical pathways or on neighbourhood-based entity sets (NESTs) that constitute sub-networks of the overall interaction network containing all physical entities around a central one within a "radius" (number of interactions from the center).
Using the pathway history one can also revert to a previous revision of a pathway. Pathways can also be tagged with ontology terms from three major BioPortal ontologies (Pathway, Disease and Cell Type). The pathway content at WikiPathways is freely available for download in several data and image formats.
The Small Molecule Pathway Database (SMPDB) [1] [2] is a comprehensive, high-quality, freely accessible, online database containing more than 600 small molecule (i.e. metabolic) pathways found in humans. SMPDB is designed specifically to support pathway elucidation and pathway discovery in metabolomics, transcriptomics, proteomics and systems ...