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Namespace Prefixes

Prefix	IRI
rdfs	http://www.w3.org/2000/01/rdf-schema#
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
owl	http://www.w3.org/2002/07/owl#
nci	http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#
xsdh	http://www.w3.org/2001/XMLSchema#

Statements

Subject Item

nci:C1748

rdf:type

owl:Class

rdfs:label

Topoisomerase Inhibitor

rdfs:subClassOf

nci:C471

nci:P106

Chemical Viewed Functionally

nci:P108

Topoisomerase Inhibitor

nci:P207

C0598317

nci:P325

<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A substance that blocks topoisomerases (enzymes that break and rejoin DNA strands and are needed for cells to divide and grow). Blocking these enzymes may kill cancer cells. Certain topoisomerase inhibitors are being studied in the treatment of cancer.</n0:def-definition><n0:def-source>NCI-GLOSS</n0:def-source></n0:ComplexDefinition>

nci:P366

Topoisomerase_Inhibitor

nci:P90

<n0:ComplexTerm xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:term-name>Topoisomerase Inhibitor</n0:term-name><n0:term-group>PT</n0:term-group><n0:term-source>NCI</n0:term-source></n0:ComplexTerm> <n0:ComplexTerm xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:term-name>topoisomerase inhibitor</n0:term-name><n0:term-group>PT</n0:term-group><n0:term-source>NCI-GLOSS</n0:term-source><n0:source-code>CDR0000046665</n0:source-code></n0:ComplexTerm> <n0:ComplexTerm xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:term-name>Topoisomerase Inhibitors</n0:term-name><n0:term-group>SY</n0:term-group><n0:term-source>NCI</n0:term-source></n0:ComplexTerm> <n0:ComplexTerm xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:term-name>DNA Topoisomerase Inhibitors</n0:term-name><n0:term-group>SY</n0:term-group><n0:term-source>NCI</n0:term-source></n0:ComplexTerm>

nci:P97

<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Any substance that inhibits topoisomerase, an enzyme that cleaves the DNA backbone to relieve torsional stress in a DNA molecule generated during replication, transcription, and other structural transformations. Inhibition of topoisomerase causes DNA damage, inhibition of DNA replication, and apoptosis.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>

nci:code

C1748