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  • Title: A family of lambda phage cDNA cloning vectors, lambda SWAJ, allowing the amplification of RNA sequences.
    Author: Palazzolo MJ, Meyerowitz EM.
    Journal: Gene; 1987; 52(2-3):197-206. PubMed ID: 3038683.
    Abstract:
    This paper describes the construction and characterization of a family of lambda phage cDNA cloning vectors that allows high-efficiency directional cDNA cloning and selective amplification of either sense or antisense cRNA sequences. These vectors contain several unique restriction sites (EcoRI, XbaI, and SacI) positioned between two specific phage promoters, SP6 and T7. This system facilitates the in vitro preparation of single-stranded (ss) RNA molecules that should be useful in subtractive hybridization and in situ hybridization procedures. Using subtractive hybridization and this vector system, it should be possible to identify sequences present in one cDNA library and not another. In addition, it should be possible to construct subtracted cDNA libraries in these vectors and to generate high specific activity, ss, antisense cRNA probes directly from DNA prepared from the whole subtracted library or from individual clones.
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