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Precise physical mapping of the Escherichia coli rnb gene, encoding ribonuclease II
R Zilhão1, J Caillet, P Régnier
1Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.
Molecular & General Genetics : MGG
|July 28, 1995
Abstract:
Ribonuclease II (encoded by rnb) is one of the two main exonucleases involved in mRNA degradation in Escherichia coli. We report the precise physical mapping of rnb to 29 min on the chromosomal map in the vicinity of pyrF, and clarify the genetic and physical maps of this E. coli chromosomal region. The results were confirmed by the construction of a strain partially deleted for rnb.