Cloning the shared components of complex DNA resources

A. J. Brookes, E. M. Slorach, K. E. Morrison, S. J. Qureshi, D. Blake, K. Davies, D. J. Porteous

Research output: Contribution to journalArticlepeer-review


The complex and repetitive nature of mammalian genomes limits the ability of conventional molecular techniques to recover sequences of interest. Here we describe a rapid and simple procedure for the direct cloning of sequences which are coincident between DNA mixtures of whole genome complexity. The system, called end ligation coincident sequence cloning (EL-CSC), can enrich coincident DNA by greater than 10(6)-fold and overcomes problems associated with repetitive elements. Applying EL-CSC to various paired DNA resources enables the facile cloning of both genomic markers and novel genes. To demonstrate the power of the method we have i) selectively purified single copy sequences from a complete genome, and ii) isolated gene fragments from 260 kb of cloned genomic DNA.
Original languageEnglish
Pages (from-to)2011-2017
Number of pages7
JournalHuman Molecular Genetics
Issue number11
Publication statusPublished - 1994


  • Base Sequence Cloning, Molecular/*methods Genetic Markers Genome, Human Humans Molecular Sequence Data Polymerase Chain Reaction *Repetitive Sequences, Nucleic Acid


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