Development of Inhibitors of Plasmodium falciparum Apical Membrane Antigen 1 Based on Fragment Screening

作者:Lim San Sui; Debono Cael O; MacRaild Christopher A; Chandrashekaran Indu R; Dolezal Olan; Anders Robin F; Simpson Jamie S; Scanlon Martin J; Devine Shane M; Scammells Peter J; Norton Raymond S*
来源:Australian Journal of Chemistry, 2013, 66(12): 1530-1536.
DOI:10.1071/CH13266

摘要

Apical membrane antigen 1 (AMA1) is an essential component of the moving junction complex used by Plasmodium falciparum to invade human red blood cells. AMA1 has a conserved hydrophobic cleft that is the site of key interactions with the rhoptry neck protein complex. Our goal is to develop small molecule inhibitors of AMA1 with broad strain specificity, which we are pursuing using a fragment-based approach. In our screening campaign, we identified fragments that bind to the hydrophobic cleft with a hit rate of 5%. The high hit rate observed strongly suggests that a druggable pocket is present within the cleft.

  • 出版日期2013