Determination and evolutionary significance of nucleotide sequences near to the 3′-end of 16S ribosomal RNA of mycobacteria

Iris C.E. Estrada-G, M. Joseph Colston, Robert A. Cox

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The nucleotide sequence at the 3′-end of 16Sr-RNA (nucleotides 1305-1508) was determined, by the primer extension method, for Mycobacterium smegmatis, Mycobacterium tuberculosis and Mycobacterium vaccae, in addition to Mycobacterium leprae. No differences in nucleotide sequence were detected, indicating that this region of 16SrRNA is highly conserved among mycobacteria. The nucleotide sequence common to the four above-mentioned mycobacteria differs from that reported for species of other genera. For example, for helix 39 (nucleotides 1408-1491) the mycobacterial sequence has 58% similarity with the Escherichia coli sequence, 74% similarity with the Bacillus subtilis sequence and 93% similarity with the Streptomyces sequence. The observations support the assignment of M. leprae to the genus Mycobacterium.

Original languageEnglish
Pages (from-to)285-290
Number of pages6
JournalFEMS Microbiology Letters
Volume61
Issue number3
DOIs
StatePublished - 15 Oct 1989

Keywords

  • Mycobacteria
  • Nucleotide sequence
  • rRNA

Fingerprint

Dive into the research topics of 'Determination and evolutionary significance of nucleotide sequences near to the 3′-end of 16S ribosomal RNA of mycobacteria'. Together they form a unique fingerprint.

Cite this