title: Identification of the E. coli groNB(nusB) gene product.
abstract: The E. coli groNB(nusB) gene product has been previously shown to be necessary for bacteriophage lambda N protein function. The product of the groNB gene has been identified on SDS polyacrylamide gels after infection of UV-irradiated E. coli cells with various lambda groNB+ transducing phage derivatives. It is a polypeptide with an apparent molecular weight of 14,000 daltons. Transducing phage carrying either a deletion or an amber mutation in the groNB gene fail to synthesize the 14,000-Mr polypeptide chain upon infection of a sup+ host. However, am+ revertants of the lambda groNBam phage do induce the synthesis of the polypeptide.
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D002872:Chromosome Deletion; D002874:Chromosome Mapping; D004926:Escherichia coli / Q000235:genetics*; D014157:Transcription Factors / Q000235:genetics*; D014161:Transduction, Genetic
chemical_list: D001426:Bacterial Proteins; D014157:Transcription Factors