the secretion-activating region increased the transcription of the secretion gene hlyb , but the transcription effect was not as pronounced as that seen in the phly152 determinant and was not evident when the region was present in trans to the hemolysin genes , suggesting that , in addition to transcriptional activation , the region may possibly exert a secondary posttranscriptional influence .
C0040649
transcription
C0162493
transcriptional activation