You can find more information about Ubc9 using the following links:

PFID PFID Old Formal Annotation GeneDB PlasmoDB Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_0915100 PFI0740c SUMO-conjugating enzyme UBC9 GeneDB PlasmoDB
Biochemical analyses, suggested target
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System