The genome of the blood fluke Schistosoma mansoni

Schistosoma mansoni is responsible for the neglected tropical disease schistosomiasis that affects 210 million people in 76 countries. Here we present analysis of the 363 megabase nuclear genome of the blood fluke. It encodes at least 11,809 genes, with an unusual intron size distribution, and new families of micro-exon genes that undergo frequent alternative splicing. As the first sequenced flatworm, and a representative of the Lophotrochozoa, it offers insights into early events in the evolution of the animals, including the development of a body pattern with bilateral symmetry, and the development of tissues into organs. Our analysis has been informed by the need to find new drug targets. The deficits in lipid metabolism that make schistosomes dependent on the host are revealed, and the identification of membrane receptors, ion channels and more than 300 proteases provide new insights into the biology of the life cycle and new targets. Bioinformatics approaches have identified metabolic chokepoints, and a chemogenomic screen has pinpointed schistosome proteins for which existing drugs may be active. The information generated provides an invaluable resource for the research community to develop much needed new control tools for the treatment and eradication of this important and neglected disease.

Wellcome Trust[WT085775/Z/08/Z]

National Institutes of Health (NIH) National Institute of Allergy and Infectious Diseases (NIAID/NIH)[AI48828]

Oyama Health Foundation

Japan Society for the Promotion of Science[13557021]

Japan`s Ministry of Education, Culture, Sports, Science and Technology

Sandler Foundation

NIH-Fogarty[5D43TW006580]

NIH-Fogarty[5D43TW007012-03]

NIH[AI054711-01A2]

PhRMA Foundation

Burroughs Wellcome Fund

WHO - United Nations Children`s Fund (UNICEF)/United Nations Development Program (UNDP)/World bank/World Health Organization

CAPES

FAPESP

[FAPEMIG REDE-281/05]