cis-acting elements that mediate the negative regulation of Moloney murine leukemia virus in mouse early embryos.
AUTOR(ES)
Vernet, M
RESUMO
We have addressed the question of the nature of Moloney murine leukemia virus (MoMuLV) repression in mouse embryos by assaying for the transient expression of MoMuLV-derived constructs microinjected into early cleavage embryos. We show that the same cis-acting DNA sequences responsible for the block in MoMuLV expression in embryonal carcinoma cell lines operate in early embryos: (i) the MoMuLV long terminal repeat is nonfunctional, and (ii) the +147 to +163 repressor binding site, or negative regulatory element, negatively regulates the expression from an active promoter.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=190523Documentos Relacionados
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