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. 1981 Jul 10;9(13):2989–2998. doi: 10.1093/nar/9.13.2989

Rapid and efficient cosmid cloning.

D Ish-Horowicz, J F Burke
PMCID: PMC327326  PMID: 6269067

Abstract

We present a procedure for cosmid cloning that allows rapid and efficient cloning of individual DNA fragments of between 32kb and 45kb. By appropriate treatment of the cloning vector, pJb8, we make left-hand and right-hand vector ends that are incapable of self-ligation but which accept dephosporylated insert DNA fragments. The inserted fragments are generated by partial digestion with MboI or Sau3A and are dephosphorylated to prevent ligation and insertion of non-contiguous fragments. The method eliminates the need to size the insert DNA fragments and prevents formation of clones containing short or multiple inserts. 1 microgram of target Drosophila DNA gives about 5 x 10(5) clones, with an average insert size of 38kb. We also describe a rapid and efficient method for preparing plasmid and cosmid DNA.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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