Abstract
The Escherichia coli gene ssyB was cloned and sequenced. The ssyB63 (Cs) mutation is an insertion mutation in nusB, while the nusB5 (Cs) mutation suppresses secY24, indicating that inactivation of nusB causes cold-sensitive cell growth as well as phenotypic suppression of secY24. The correct map position of nusB is 9.5 min rather than 11 min as previously assigned. It is located at the distal end of an operon that contains a gene showing significant homology with a Bacillus subtilis gene involved in riboflavin biosynthesis.
MeSH Terms
Amino Acid Sequence
Bacterial Proteins/genetics
Base Sequence
Chromosome Mapping
Cold Temperature
DNA, Bacterial/genetics
Escherichia coli/genetics,growth & development
Escherichia coli Proteins
Genes, Bacterial
Genes, Suppressor
Genetic Complementation Test
Molecular Sequence Data
Mutagenesis, Insertional
Polymerase Chain Reaction
Transcription Factors/genetics
Transcription, Genetic
Chemicals
Bacterial Proteins
DNA, Bacterial
Escherichia coli Proteins
NusB protein, E coli
Transcription Factors
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Taura T
Institute for Virus Research, Kyoto University, Japan.
Ueguchi C
Shiba K
Ito K
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