The 23S-5S spacer of two rRNA loci of Streptococcus salivarius subsp thermophilus includes a promoter.

Abstract : The nucleotide sequence of the 3' part of a ribosomal and transfer RNA locus from Streptococcus salivarius subsp thermophilus NST1403 was determined. The sequenced DNA fragment includes the 3' end of a 23S rRNA gene, a 5S rRNA gene, a tRNA(asn) gene and a potential transcriptional terminator. The tRNA gene does not encode for the CCA 3'terminus of mature tRNA. We compared this sequence to a promoter-carrying DNA fragment sequence (P20) of Streptococcus salivarius subsp thermophilus A054 [1]. We found that the P20 sequence included the 3' end of a 23S rRNA gene, a 5S rRNA gene and the 5' part of a tRNA(val) gene. The two 23S-5S spacer sequences are identical and contain a promoter and a potential 23S rRNA processing site. Therefore, 5S rRNA and tRNA genes could be transcribed from a promoter located within the 23S-5S spacer of at least two of the six rRNA loci.
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Article dans une revue
Biochimie, Elsevier, 1992, pp.585-8
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https://hal.univ-lorraine.fr/hal-01659169
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Soumis le : vendredi 8 décembre 2017 - 10:51:15
Dernière modification le : samedi 9 décembre 2017 - 01:15:43

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  • HAL Id : hal-01659169, version 1
  • PUBMED : 1381619

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M. Guedon, M Pébay, C Colmin, J M Simonet, B. Decaris. The 23S-5S spacer of two rRNA loci of Streptococcus salivarius subsp thermophilus includes a promoter.. Biochimie, Elsevier, 1992, pp.585-8. 〈hal-01659169〉

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