Article
Patterns of sequence variation in two regions of the 16S rRNA multigene family of Escherichia coli.
International journal of systematic bacteriology - 1 Apr 1999
Martínez-Murcia A J, Antón A I, Rodríguez-Valera F
Abstract excerpt
Sequence heterogeneities of variable positions located at regions V1 and V6 of 56 cloned 16S rRNA genes were determined from six Escherichia coli strains. These nucleotides were involved in secondary structure base-pairing of stem-loops. Compensatory and single mutations have occurred but secondary structure was conserved. Eight different sequences were found in the stem at region V1 indicating that in these...
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