Transcriptional Slippage in mxiE Controls Transcription and Translation of the Downstream mxiD Gene, Which Encodes a Component of the Shigella flexneri Type III Secretion Apparatus

摘要

The Shigella flexneri transcription activator MxiE is produced by transcriptional slippage from two overlapping open reading frames. By using plasmids encoding a mxiD-lacZ translational fusion, we showed that transcriptional slippage in mxiE influences both transcription and translation of the downstream mxiD gene encoding an essential component of the type III secretion apparatus.