1. Askew DS, Li J, Ihle JN: Retroviral insertions in the murine His-1 locus activate the expression of a novel RNA that lacks an extensive open reading frame. Mol Cell Biol 14: 1743?1751 (1994).
2. Ausubel FM, Brent R, Kingston RE, Moore DD, Seidman JG, Smith JA, Struhl K: Primer extension. In: Current Protocols in Molecular Biology, vol. 1, pp. 4.8.1?4.8.5. Greene Publishing Associates/Wiley-Interscience, New York (1991).
3. Ausubel FM, Brent R, Kingston RE, Moore DD, Seidman JG, Smith JA, Struhl K: Size fractionation using sucrose gradients. In: Current Protocols in Molecular Biology, vol. 1, pp. 5.3.2?5.3.8. Greene Publishing Associates/Wiley-Interscience, New York (1991).
4. Brannan CI, Dees EC, Ingram RS, Tilghman SM: The product of the H19 gene may function as an RNA. Mol Cell Biol 10: 28?36 (1990).
5. Brockdorff N, Ashworth A, Kay GF, McCabe VM, Norris DP, Cooper PJ, Swift S, Rastan S: The product of the mouse Xist gene is a 15 kb inactive X-specific transcript containing no conserved ORF and located in the nucleus. Cell 71: 515?526 (1992).