alexa Comparison of promoter suppression in avian and murine retrovirus vectors.
Genetics & Molecular Biology

Genetics & Molecular Biology

Cloning & Transgenesis

Author(s): Emerman M, Temin HM

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Abstract Previously, we described "promoter suppression" in infectious retrovirus vectors with two genes and an internal promoter. Here, we examined several parameters of promoter suppression and found that the amount of suppression in an integrated retrovirus vector was dependent both on whether the vector was derived from spleen necrosis virus or murine leukemia virus and on which internal promoter was present in the vector. Murine leukemia virus vectors showed less suppression than analogous spleen necrosis virus vectors. Furthermore, the amount of suppression was not dependent on either the relative strengths of the promoters nor the distance between the promoters. Moreover, we found that in vectors in which one promoter was suppressed, there was an inverse correlation between the DNaseI sensitivity of the chromatin surrounding a promoter and the suppression of its expression.
This article was published in Nucleic Acids Res and referenced in Cloning & Transgenesis

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