Transcription profiling of E.coli CP4-57-deficient samples vs. wild-type

ABSTRACT: Previously, we discovered that the global regulator Hha is related to cell death in biofilms and regulates cryptic prophage genes. Here we show Hha induces excision of prophage CP4-57 and DLP12 by inducing excision genes and by reducing SsrA synthesis. SsrA is a tmRNA important for rescuing stalled ribosomes, contains an attachment site for CP4-57, and is shown here to be required for CP4-57 excision. These prophages impact biofilm development as deletion of 35 genes individually of prophage CP4-57 and DLP12 increase biofilm formation up to 17-fold, and 5 genes decrease biofilm formation up to 6-fold. In addition, CP4-57 excises during early biofilm development but not in planktonic cells, whereas DLP12 excision was detected at all the developmental stages for both biofilm and plankton

ORGANISM(S): Escherichia coli

SUBMITTER: Younghoon Kim 

PROVIDER: E-GEOD-14472 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress