regulation of transcriptional start site selection at RNA polymerase II promoter
regulation of transcriptional start site selection at rna polymerase ii promoter
Any process that modulates the rate, frequency or extent of a process involved in the selection of the specific location within the template strand of an RNA polymerase II promoter for hybridization of the cognate ribonucleotides and formation of first phosphodiester bond within the nascent transcript.