regulates transcriptional start site selection at RNA polymerase II promoter regulation of transcriptional start site selection at RNA polymerase II promoter https://github.com/geneontology/go-ontology/issues/28783 GO:0001178 2011-06-20T02:06:00Z regulation of transcription start site selection at RNA polymerase II promoter krc biological_process 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. regulation of transcription, start site selection regulation of transcription initiation by RNA polymerase II biological regulation