The 23S-5S spacer of two rRNA loci of Streptococcus salivarius subsp thermophilus includes a promoter - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Biochimie Année : 1992

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

Résumé

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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Dates et versions

hal-01659169 , version 1 (08-12-2017)

Identifiants

Citer

G. Guédon, 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, 1992, 74 (6), pp.585-8. ⟨10.1016/0300-9084(92)90159-C⟩. ⟨hal-01659169⟩
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