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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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A complete shikimate pathway in Toxoplasma gondii : an ancient eukaryotic innovation

Campbell, S A and Richards, T A and Mui, E J and Samuel, B U and Coggins, J R and McLeod, R and Roberts, C W (2004) A complete shikimate pathway in Toxoplasma gondii : an ancient eukaryotic innovation. International Journal for Parasitology, 34 (1). pp. 5-13. ISSN 0020-7519

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Abstract

The shikimate pathway is essential for survival of the apicomplexan parasites Plasmodium falciparum, Toxoplasma gondii and Cryptosporidium parvum. As it is absent in mammals it is a promising therapeutic target. Herein, we describe the genes encoding the shikimate pathway enzymes in T. gondii. The molecular arrangement and phylogeny of the proteins suggests homology with the eukaryotic fungal enzymes, including a pentafunctional AROM. Current rooting of the eukaryotic evolutionary tree infers that the fungi and apicomplexan lineages diverged deeply, suggesting that the arom is an ancient supergene present in early eukaryotes and subsequently lost or replaced in a number of lineages.