Representational difference analysis as a tool in the search for new tumor suppressor genes

Antoinette Hollestelle, Mieke Schutte

Research output: Chapter/Conference proceedingChapterAcademic

3 Citations (Scopus)


The recognition of a homozygous deletion of genetic material in a tumor genome has been instrumental in several tumor suppressor gene searches. The representational difference analysis (RDA) allows one to identify homozygous deletions even from among the high background of allelic losses that is typical for most cancers. RDA is a polymerase chain reaction (PCR)-based subtractive hybridization method. Two major obstacles to successful enrichment of target sequences from complex genomes were circumvented by RDA. Incomplete reassociation of complex DNA populations is overcome by using representative subpopulations of the tester and driver genomes. In addition, reiterated hybridization, selection, and amplification of the difference products introduces a kinetic component in the enrichment of target sequences. RDA thus enables the identification of homozygous deletions as small as 100 kilobases. Here, we provide a detailed protocol of the RDA procedure, including reflections on frequently encountered technical problems and on the particulars of its application in cancer.
Original languageEnglish
Title of host publicationPancreatic Cancer
Subtitle of host publicationMethods and Protocols
EditorsGloria H. Su
Place of PublicationTotowa, NJ
PublisherHumana Press
Number of pages18
ISBN (Electronic)1-59259-780-7
ISBN (Print)1-58829-107-3
Publication statusPublished - 2005

Publication series

SeriesMethods in Molecular Medicine

Bibliographical note

All rights reserved.

Research programs

  • EMC MM-03-86-01


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