part of DNA-templated transcriptional start site selection transcriptional start site selection at RNA polymerase III promoter GO:0001175 2011-06-20T01:47:38Z Any process involved in the selection of the specific location within the template strand of an RNA polymerase III promoter for hybridization of the cognate ribonucleotides and formation of first phosphodiester bond within the nascent transcript. krc biological_process transcription initiation at RNA polymerase III promoter