. "\"The aggregation, arrangement and bonding together of proteins on promoter DNA to form the transcriptional preinitiation complex (PIC), the formation of which is a prerequisite for transcription.\" [GOC:jp, GOC:txnOH]" . . "DNA-dependent transcriptional preinitiation complex assembly" . . "transcription PIC biosynthesis" . "transcription PIC formation" . "transcriptional preinitiation complex formation" .