regulation of mating-type specific transcription from RNA polymerase II promoter negative regulation of mating-type specific transcription from RNA polymerase II promoter http://purl.obolibrary.org/obo/GO_0001198 Any process that stops, prevents, or reduces the frequency, rate or extent of mating type switching by stopping, preventing, or reducing the frequency, rate or extent of transcription from an RNA polymerase II promoter. down regulation of RNA polymerase II transcription, mating-type specific down-regulation of RNA polymerase II transcription, mating-type specific downregulation of RNA polymerase II transcription, mating-type specific inhibition of RNA polymerase II transcription, mating-type specific negative regulation of mating-type specific transcription, DNA-templated