You can find more information about RNA polymerase I using the following links:

PFID PFID Old Formal Annotation PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_0509400 PFE0465c RNA polymerase I PlasmoDB TDR
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System