Transcriptional/translational repression is the reverse type of reaction to transcriptional/translational activation. In this type of reaction we merge regulation on both transcriptional and translational level as they are conceptually the same. For this reaction type the reaction input is always the gene (even tough in case of translational regulation, the transcript is actually regulated). The output is also here automatically generated. The repressor (or several repressors) of transcription and any blockers of translation (e.g. miRNAs) should also be included.