Construction and characterization of complementary DNA libraries from Vero cells infected with measles virus

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Abstract
Several cDNA libraries have been generated from poly(A)RNA from Vero cells infected for 24 hours with measles virus. Different protocols for cDNA library construction were compared and some critical steps were evaluated. From these libraries, a measles virus specific sequence corresponding to 885 of 1600 nucleotides of the measles virus phosphoprotein gene has been cloned. The phosphoprotein gene accounts for 1% of the total cDNA library after 24 hours of infection at 37.degree. C. The technique of differential colony hybridization was used to analyze the distribution and change of the poly (A)-RNA expression in uninfected Vero cells and in cells infected with measles virus for 24 hours.