Complete gene map of the plastid-like DNA of the malaria parasite Plasmodium falciparum

R. J.M.(Iain) Wilson*, Paul W. Denny, Peter R. Preiser, Kaveri Rangachari, Kate Roberts, Anjana Roy, Andrea Whyte, Malcolm Strath, Daphne J. Moore, Peter W. Moore, Donald H. Williamson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

488 Citations (Scopus)

Abstract

Malaria parasites, and other parasitic protists of the Phylum Apicomplexa, carry a plastid-like genome with greatly reduced sequence complexity. This 35 kb DNA circle resembles the plastid DNA of non-photosynthetic plants, encoding almost exclusively components involved in gene expression. The complete gene map described here includes genes for duplicated large and small subunit rRNAs, 25 species of tRNA, three subunits of a eubacterial RNA polymerase, 17 ribosomal proteins, and a translation elongation factor. In addition, it codes for an unusual member of the Clp family of chaperones, as well as an open reading frame of unknown function found in red algal plastids. Transcription is polycistronic. This plastid-like DNA molecule is conserved in several genera of apicomplexans and is conjectured to have been acquired by an early progenitor of the Phylum by secondary endosymbiosis. The function of the organelle (plastid) carrying this DNA remains obscure, but appears to be specified by genes transferred to the nucleus.

Original languageEnglish
Pages (from-to)155-172
Number of pages18
JournalJournal of Molecular Biology
Volume261
Issue number2
DOIs
Publication statusPublished - Aug 16 1996
Externally publishedYes

ASJC Scopus Subject Areas

  • Structural Biology
  • Molecular Biology

Keywords

  • Evolution
  • Malaria
  • Non-photosynthetic plastids
  • Plastid DNA

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