You can find more information about proteasome subunit beta type-4 using the following links:

PFID PFID Old Formal Annotation PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_0803800 MAL8P1.142 proteasome subunit beta type-4 PlasmoDB TDR
Chloroquine
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System