This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Harriott, O T Articles by Noll, K M Search for Related Content PubMed PubMed Citation Articles by Harriott, O T Articles by Noll, K M

 Previous Article  |  Next Article 

J Bacteriol. 1994 May; 176(9): 2759-2762

A cryptic miniplasmid from the hyperthermophilic bacterium Thermotoga sp. strain RQ7.

Department of Molecular and Cell Biology, University of Connecticut, Storrs 06269.

ABSTRACT

An 846-bp cryptic plasmid has been discovered in the hyperthermophilic bacterium Thermotoga sp. strain RQ7. This is the first plasmid described for an organism from this ancient bacterial lineage and the smallest plasmid described to date for any organism. Nucleotide sequencing revealed a single open reading frame possibly encoding a 25,460-Da basic protein (212 amino acids). Upstream of the putative promoter lie five 11-bp direct repeats, each separated by 1 to 4 bp, while between the promoter and the open reading frame lies an 11-bp palindromic sequence. Its mode of replication is unknown, but its sequence bears similarities to those of plasmids which replicate by a rolling-circle mechanism.

This article has been cited by other articles:

• DeBoy, R. T., Mongodin, E. F., Emerson, J. B., Nelson, K. E. (2006). Chromosome Evolution in the Thermotogales: Large-Scale Inversions and Strain Diversification of CRISPR Sequences.. J. Bacteriol. 188: 2364-2374 [Abstract] [Full Text]  
• Guipaud, O., Marguet, E., Noll, K. M., de la Tour, C. B., Forterre, P. (1997). Both DNA gyrase and reverse gyrase are present in the hyperthermophilic bacterium Thermotoga maritima. Proc. Natl. Acad. Sci. USA 94: 10606-10611 [Abstract] [Full Text]