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Complete nucleotide sequence of the 23S rRNA gene of the Cyanobacterium, Anacystis nidulans.

The nucleotide sequence of the Anacystis nidulans 23S rRNA gene, including the 5'- and 3'-flanking regions has been determined. The gene is 2876 nucleotides long and shows higher primary sequence homology to the 23S rRNAs of plastids (84.5%) than to that of E. coli (79%). The predicted rRNA transcript also shares many secondary structural features with those of plastids, reinforcing the endosymbiont hypothesis for the origin of these organelles.