Differential cloning using in‐gel competitive reassociation

Hiroshi Yokota, Shinya Amano, Tetsuo Yamane, Kazuto Ataka, Eriko Kikuya, Michio Oishi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We describe the principle and actual processes of a differential cloning procedure designed for cloning of anonymous restriction DNA fragments whose molecular sizes differ between two genomic DNA preparations from higher organisms as a result of DNA rearrangement, polymorphism, etc. The procedure, which was extensively modified from the original one and still employs in‐gel competitive reassociation (IGCR) as the basic principle, aims for cloning of DNA fragments which exist in one copy or less per mammalian genome. The modified procedure consists of dissociation and reassociation of biotinylated restriction digests of target DNA fragments (from which clones are to be isolated) in the presence of a large excess of reference (competitor) DNA in gel after electrophoresis, which is followed by absorption of the target DNA fragments to streptavidin‐coated tubes and solid‐phase polymerase chain reaction. After repeating these steps we attained substantial enrichment of altered DNA fragments which were originally present in one copy or less per complex mammalian genome.

Original languageEnglish
Pages (from-to)286-290
Number of pages5
JournalELECTROPHORESIS
Volume16
Issue number1
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

Fingerprint

Cloning
Organism Cloning
DNA
Genome
Genes
Gene Rearrangement
Polymerase chain reaction
Electrophoresis
Polymorphism
Clone Cells
Gels
Polymerase Chain Reaction

Keywords

  • Mammalian genome
  • Polymorphism
  • Rearrangement

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry

Cite this

Yokota, H., Amano, S., Yamane, T., Ataka, K., Kikuya, E., & Oishi, M. (1995). Differential cloning using in‐gel competitive reassociation. ELECTROPHORESIS, 16(1), 286-290. https://doi.org/10.1002/elps.1150160145

Differential cloning using in‐gel competitive reassociation. / Yokota, Hiroshi; Amano, Shinya; Yamane, Tetsuo; Ataka, Kazuto; Kikuya, Eriko; Oishi, Michio.

In: ELECTROPHORESIS, Vol. 16, No. 1, 01.01.1995, p. 286-290.

Research output: Contribution to journalArticle

Yokota, H, Amano, S, Yamane, T, Ataka, K, Kikuya, E & Oishi, M 1995, 'Differential cloning using in‐gel competitive reassociation', ELECTROPHORESIS, vol. 16, no. 1, pp. 286-290. https://doi.org/10.1002/elps.1150160145
Yokota H, Amano S, Yamane T, Ataka K, Kikuya E, Oishi M. Differential cloning using in‐gel competitive reassociation. ELECTROPHORESIS. 1995 Jan 1;16(1):286-290. https://doi.org/10.1002/elps.1150160145
Yokota, Hiroshi ; Amano, Shinya ; Yamane, Tetsuo ; Ataka, Kazuto ; Kikuya, Eriko ; Oishi, Michio. / Differential cloning using in‐gel competitive reassociation. In: ELECTROPHORESIS. 1995 ; Vol. 16, No. 1. pp. 286-290.
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