Malaria. Cooperative silencing elements in var genes. Academic Article uri icon

Overview

MeSH

  • Animals
  • Introns
  • Promoter Regions, Genetic
  • Protozoan Proteins
  • Regulatory Sequences, Nucleic Acid
  • S Phase

MeSH Major

  • Gene Silencing
  • Genes, Protozoan
  • Plasmodium falciparum

abstract

  • Each Plasmodium falciparum malaria parasite carries about 50 var genes from a diverse family that encode variable adhesion proteins on the infected red blood cells of the host, but individual parasites single out just one var gene for expression and silence all the others. Here we show that this silencing is established during the DNA-synthesis phase (S phase) of the cell cycle and that it depends on the cooperative interaction between two elements in separate control regions of each var gene (the 5'-flanking region and the intron). This finding should help to clarify the mechanisms by which parasites coordinate the silencing and activation of var genes that are responsible for antigenic variation in malaria.

publication date

  • August 30, 2001

has subject area

  • Animals
  • Gene Silencing
  • Genes, Protozoan
  • Introns
  • Plasmodium falciparum
  • Promoter Regions, Genetic
  • Protozoan Proteins
  • Regulatory Sequences, Nucleic Acid
  • S Phase

Research

keywords

  • Journal Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1038/35091146

PubMed ID

  • 11528468

Additional Document Info

start page

  • 875

end page

  • 876

volume

  • 412

number

  • 6850