Nucleotide sequence of the gene coding for the elongation factor Tu from the extremely thermophilic eubacterium Thermotoga maritima

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Abstract
The gene coding for the elongation factor Tu (EF-Tu) of Thermatoga maritima was cloned and sequenced. The predicted amino acid sequence was compared with those of other eubacteria, an archaebacterium and two eukaryotes as well. The similarity values and the distance matrix tree show that Thermotoga is more closely related to the eubacteria than to the representatives of the other urkingdoms. Thermotoga maritima represents the deepest branching within the tree of EF-Tu sequences from all eubacteria studied so far.