| Literature DB >> 23084821 |
Souvik Bhattacharjee1, Robert V Stahelin, Kasturi Haldar.
Abstract
Blood stage malaria parasites target a 'secretome' of hundreds of proteins including virulence determinants containing a host (cell) targeting (HT) signal, to human erythrocytes. Recent studies reveal that the export mechanism is due to the HT signal binding to the lipid phosphatidylinositol-3-phosphate [PI(3)P] in the parasite endoplasmic reticulum (ER). An aspartic protease plasmepsin V which cleaves a specialized form of the HT signal was previously thought to be the export mechanism, but is now recognized as a dedicated peptidase that cleaves the signal anchor subsequent to PI(3)P binding. We discuss a model of PI(3)P-dependent targeting and PI(3)P biology of a major human pathogen. Published by Elsevier Ltd.Entities:
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Year: 2012 PMID: 23084821 PMCID: PMC3501602 DOI: 10.1016/j.pt.2012.09.004
Source DB: PubMed Journal: Trends Parasitol ISSN: 1471-4922