title: OntoQuery: easy-to-use web-based OWL querying.
abstract: CONCLUSIONS
  The Web Ontology Language (OWL) provides a sophisticated language for building complex domain ontologies and is widely used in bio-ontologies such as the Gene Ontology. The Protégé-OWL ontology editing tool provides a query facility that allows composition and execution of queries with the human-readable Manchester OWL syntax, with syntax checking and entity label lookup. No equivalent query facility such as the Protégé Description Logics (DL) query yet exists in web form. However, many users interact with bio-ontologies such as chemical entities of biological interest and the Gene Ontology using their online Web sites, within which DL-based querying functionality is not available. To address this gap, we introduce the OntoQuery web-based query utility.
  
  
  METHODS
  The source code for this implementation together with instructions for installation is available at http://github.com/IlincaTudose/OntoQuery. OntoQuery software is fully compatible with all OWL-based ontologies and is available for download (CC-0 license). The ChEBI installation, ChEBI OntoQuery, is available at http://www.ebi.ac.uk/chebi/tools/ontoquery.
  
  
  BACKGROUND
  hastings@ebi.ac.uk.
authors.affiliation: Cheminformatics and Metabolism, European Bioinformatics Institute, Cambridge, UK, Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland and Evolutionary Bioinformatics, Swiss Institute of Bioinformatics, Lausanne, Romandy, Switzerland.
authors.forename: Ilinca
authors.initials: I
authors.lastname: Tudose
authors.forename: Janna
authors.initials: J
authors.lastname: Hastings
authors.forename: Venkatesh
authors.initials: V
authors.lastname: Muthukrishnan
authors.forename: Gareth
authors.initials: G
authors.lastname: Owen
authors.forename: Steve
authors.initials: S
authors.lastname: Turner
authors.forename: Adriano
authors.initials: A
authors.lastname: Dekker
authors.forename: Namrata
authors.initials: N
authors.lastname: Kale
authors.forename: Marcus
authors.initials: M
authors.lastname: Ennis
authors.forename: Christoph
authors.initials: C
authors.lastname: Steinbeck
mesh_terms: D064229:Biological Ontologies; D020407:Internet; D012984:Software