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FEBS Lett. 1991 Aug 19;288(1-2):98-100.

Molecular cloning, nucleotide sequence and expression of the tufB gene encoding elongation factor Tu from Thermus thermophilus HB8.

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Faculty of Pharmaceutical Sciences, Osaka University, Japan.


The tufB gene encoding elongation factor Tu (EF-Tu) of Thermus thermophilus HB8 was cloned and expressed. Compared with the known tufA gene of T. thermophilus, nucleotide differences were found at 10 positions out of 1221 nucleotides, and amino acid substitutions were found at 4 positions out of 406 amino acids. The tufB product was 70.9% homologous to the corresponding sequence of the tufB product of E. coli. The G+C content of the third base of the codon in the tufB gene was 84.8% and G was especially preferred in this position.

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