16S-23S ribosomal RNA spacer regions of Acetobacter europaeus and A. xylinum, tRNA genes and antitermination sequences.

Abstract

The 16S-23S ribosomal RNA spacer regions of Acetobacter europaeus DSM 6160, A. xylinum NCIB 11664 and A. xylinum CL27 were amplified by PCR. Specific PCR products were obtained from each strain and their nucleotide sequences determined. The spacer region of A. europaeus comprises 768 nucleotides (nt), that of A. xylinum 778 nt and that of A. xylinum CL27 759 nt. Genes encoding tRNAIle and tRNAAla were identified. Putative antitermination sequences were found between the tRNAAla sequence and the 5'-terminus of the 23S rRNA coding sequence. The boxA element has the nucleotide sequence TGCTCTTTGATA. Based on hybridization data of digested chromosomal DNA with spacer-specific probes, the copy number of the rrn operons on the chromosome of Acetobacter strains is estimated to be four.

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@article{Sievers199616S23SRR, title={16S-23S ribosomal RNA spacer regions of Acetobacter europaeus and A. xylinum, tRNA genes and antitermination sequences.}, author={Martin Sievers and Leonardo G. Alonso and Stefania Gianotti and Caroline Boesch and Markus Teuber}, journal={FEMS microbiology letters}, year={1996}, volume={142 1}, pages={43-8} }