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A silenced Plasmodium falciparum var promoter can be activated in vivo through spontaneous deletion of a silencing element in the intron.


ABSTRACT: Introns of Plasmodium falciparum var genes act as transcriptional silencing elements that help control antigenic variations. In transfected episomes, intron silencing of a drug-selectable marker under var promoter control is reversed by the spontaneous deletion of key intron regions. The resulting promoter activation does not affect the transcription of chromosomal var genes.

SUBMITTER: Gannoun-Zaki L 

PROVIDER: S-EPMC549332 | biostudies-literature | 2005 Feb

REPOSITORIES: biostudies-literature

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A silenced Plasmodium falciparum var promoter can be activated in vivo through spontaneous deletion of a silencing element in the intron.

Gannoun-Zaki Laïla L   Jost Amy A   Mu Jianbing J   Deitsch Kirk W KW   Wellems Thomas E TE  

Eukaryotic cell 20050201 2


Introns of Plasmodium falciparum var genes act as transcriptional silencing elements that help control antigenic variations. In transfected episomes, intron silencing of a drug-selectable marker under var promoter control is reversed by the spontaneous deletion of key intron regions. The resulting promoter activation does not affect the transcription of chromosomal var genes. ...[more]

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