. "\"Any process that modulates the frequency, rate or extent of RNA polymerase II transcriptional preinitiation complex assembly.\" [GOC:go_curators]" . . "regulation of RNA polymerase II transcriptional preinitiation complex assembly" . "regulation of RNA polymerase II transcriptional pre-initiation complex assembly" . "regulation of RNA polymerase II transcriptional pre-initiation complex biosynthesis" . . "regulation of RNA polymerase II transcriptional preinitiation complex formation" .