You can find more information about Ulp1 using the following links:

PFID PFID Old Formal Annotation PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_0801700 MAL8P1.157 sentrin-specific protease 2, putative PlasmoDB TDR
PF3D7_1233900 PFL1635w sentrin-specific protease 1 PlasmoDB TDR
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System