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A survey of 160 published sequences of eubacterial 5 S rRNAs shows that there exists structural variability in one of the helices of the generally accepted secondary structure model. Four structural variants are found, which differ with respect to the position and the number of bulges present. Most eubacterial 5 S RNAs fit into at least two of these conformations. A reaction scheme connecting the...
The 5 S rRNA sequence was determined for the bacterium Herpetosiphon strain Senghas Wie 2. It is the first 5 S RNA sequence reported for a member of the eubacterial phylum defined by green non-sulfur bacteria. The sequence fits into a consensus secondary structure model for eubacterial 5 S RNA. At four positions, the sequence shows substitutions with respect to strongly conserved nucleotides found...
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