It is thus freely accessible and available to anyone. In addition, each data item is fully traceable and explicitly referenced to the original source. There are various spreadsheet tools available to import this into a relational database. The files are stored in the same structure as the relational database. The parameter file import. The correct command to execute is:. The file called compounds. These insert statements should be usable in any database which accepts SQL as its query language.
Compared with established commercial chemistry resources, ChEBI is a small database. However the strength of ChEBI lies in its quality. Funding to pay the Open Access publication charges for this article was provided by the European Bioinformatics Institute. National Center for Biotechnology Information , U. Journal List Nucleic Acids Res v.
Encyclopedia of Interfacial Chemistry
Nucleic Acids Res. Published online Oct Author information Article notes Copyright and License information Disclaimer. This article has been cited by other articles in PMC. Data sources In order to create ChEBI, data from a number of different sources were incorporated and then merged. Table 1. Online databases cross-referenced in ChEBI.
Open in a separate window. Table 2. Recommendations used to derive terminology in ChEBI. Database design ChEBI is designed as a relational database, which is implemented in an Oracle database server. Formula Where possible, formulae are assigned for entities and groups.
Comment s A free-text comment may be added to some terms especially in cases where confusing terminology has been historically used.
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ChEBI Ontology consists of four sub-ontologies Table 3 : Molecular Structure, in which molecular entities or parts thereof are classified according to structure; Biological Role, which classifies entities on the basis of their role within a biological context e. Figure 1. Table 3. ChEBI sub-ontologies. Relationships There is, in the OBO community, an effort to standardize the relationships used in biomedical ontologies Table 4. Relationships in ChEBI ontology. Conflict of interest statement. None declared. MetaCyc: a multiorganism database of metabolic pathways and enzymes. The UniProt Consortium.
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