: Human malaria results from infection by the protozoan parasite Plasmodium sp. Currently, 300-500 million peoples are infected with malaria, and 1.5-3.5 million individuals succumb annually to the disease. Although expression of many P. falciparum genes involved in pathogenesis and development are regulated at the level of transcription, there is little mechanistic information regarding transcription in these organisms. Thus, transcription of three P. falciparum heat shock genes will be analyzed as a model system. Nuclear run on assays will be used to determine the transcription rates of these genes in the absence and presence of heat stress. In vivo reporter assays will be used to determine the promoter sequences required for transcription. Proteins that require transcription of the heat shock genes will be purified by DNA affinity chromatography and identified by mass spectroscopy. These studies will enhance our understanding of transcription in P. falciparum, and allow a better understanding of pathogenesis, differentiation, and drug resistance in this parasite.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Postdoctoral Individual National Research Service Award (F32)
Project #
5F32AI050303-03
Application #
6603298
Study Section
Special Emphasis Panel (ZRG1-TMP (01))
Program Officer
Rogers, Martin J
Project Start
2002-07-01
Project End
Budget Start
2003-07-01
Budget End
2004-06-30
Support Year
3
Fiscal Year
2003
Total Cost
$46,420
Indirect Cost
Name
Harvard University
Department
Microbiology/Immun/Virology
Type
Schools of Public Health
DUNS #
149617367
City
Boston
State
MA
Country
United States
Zip Code
02115
Sims, Jennifer S; Militello, Kevin T; Sims, Peter A et al. (2009) Patterns of gene-specific and total transcriptional activity during the Plasmodium falciparum intraerythrocytic developmental cycle. Eukaryot Cell 8:327-38
Militello, Kevin T; Patel, Vishal; Chessler, Anne-Danielle et al. (2005) RNA polymerase II synthesizes antisense RNA in Plasmodium falciparum. RNA 11:365-70
Militello, Kevin T; Dodge, Matthew; Bethke, Lara et al. (2004) Identification of regulatory elements in the Plasmodium falciparum genome. Mol Biochem Parasitol 134:75-88
Militello, Kevin T; Wirth, Dyann F (2003) A new reporter gene for transient transfection of Plasmodium falciparum. Parasitol Res 89:154-7