You can find more information about Wss1 using the following links:

PFID PFID Old Formal Annotation PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_1009500 PF10_0092 metalloprotease PlasmoDB TDR
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System