<?xml version="1.0" encoding="UTF-8"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:obo_purl="http://purl.obolibrary.org/obo/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:metadata_def="http://data.bioontology.org/metadata/def/" xmlns:oboinowl_gen="http://www.geneontology.org/formats/oboInOwl#" xmlns:metadata="http://data.bioontology.org/metadata/"> <owl:Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_35341"> <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/CHEBI_18059"/> <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/CHEBI_51958"/> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/CHEBI_35341"/> <metadata_def:mappingLoom>steroid</metadata_def:mappingLoom> <metadata_def:prefLabel>steroid</metadata_def:prefLabel> <obo_purl:IAO_0000115>Any of naturally occurring compounds and synthetic analogues, based on the cyclopenta[a]phenanthrene carbon skeleton, partially or completely hydrogenated; there are usually methyl groups at C-10 and C-13, and often an alkyl group at C-17. By extension, one or more bond scissions, ring expansions and/or ring contractions of the skeleton may have occurred. Natural steroids are derived biogenetically from squalene which is a triterpene.</obo_purl:IAO_0000115> <oboinowl_gen:hasExactSynonym>Steroid</oboinowl_gen:hasExactSynonym> <oboinowl_gen:hasExactSynonym>steroids</oboinowl_gen:hasExactSynonym> <metadata:prefixIRI>CHEBI:35341</metadata:prefixIRI> <metadata:prefixIRI>obo1:CHEBI_35341</metadata:prefixIRI> <rdfs:label>steroid</rdfs:label> <oboinowl_gen:hasRelatedSynonym>a steroid</oboinowl_gen:hasRelatedSynonym> </owl:Class> <rdf:Description rdf:about="http://purl.obolibrary.org/obo/CHEBI_35350"> <rdfs:subClassOf> <rdf:Description rdf:about="http://purl.obolibrary.org/obo/CHEBI_35341"> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/CHEBI_35341"/> </rdf:Description> </rdfs:subClassOf> </rdf:Description> </rdf:RDF>