Identification of a novel regulatory protein (CsrD) that targets that global regulatory RNAs CsrB and CsrC for degradation by RNase E

A protein (CsrD) that controls the degradation of CsrB/C RNAs is described. Analysis of the decay of CsrB RNA, both in vitro and in viro, suggested that CsrD is not a ribonuclease.