A sequence similar to bacterial transposable IS elements present in the 5' untranslated region of the bovine butanediol dehydrogenase cDNA
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Updated: Oct 17, 2026

Generation of Enterobacter sp. YSU Auxotrophs Using Transposon Mutagenesis
Published on: October 31, 2014
A M Smania1, M C Saleh, C E Argaraña
1Centro de Investigaciones en Química Biológica de Córdoba-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina. asmania@dqbfcq.uncor.edu
Abstract:
A sequence similar to prokaryotic transposable elements was identified in the long 5' untranslated region (5'UTR) of the butanediol dehydrogenase cDNA isolated from a bovine brain lambda gt11 library. Several observations suggested that this sequence could be related to bacterial IS elements: (a) 58% nucleotide sequence identity, (b) 56% amino acid sequence identity, and (c) the presence of inverted terminal repeats. However, nucleotide sequence analyses of the 5'UTR bovine cDNA showed the presence of chain-terminating nucleotide substitutions that would render it incapable of encoding a functional transposase. Finally, it was observed that different vertebrate genomes have sequences related to this putative transposable element.
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