GO:0001189

RNA polymerase I transcriptional preinitiation complex assembly at the promoter for the nuclear large rRNA transcript

Details: 
The aggregation, arrangement and bonding together of proteins on CORE promoter element DNA of the nuclear large ribosomal RNA (rRNA) transcript to form a transcriptional preinitiation complex (PIC), the formation of which is a prerequisite for transcription from the large rRNA promoter, resulting in the subsequent synthesis of the large rRNA transcript. [GOC:txnOH, PMID:12381659, PMID:14969726, PMID:8057832]
Evidence Code: