Extremophiles

, Volume 4, Issue 3, pp 175–179

Two different and highly organized mechanisms of translation initiation in the archaeon Sulfolobus solfataricus

Authors

  • N. Tolstrup
    • Novo Nordisk A/S, Enzyme Research, Bioinformatics and DNA Sequencing, Novo Alle, DK-2880, Bagsværd, Denmark Tel. +45-44-42-66-86; Fax +45-44-42-30-15 e-mail: ntol@novo.dk
  • Christoph W. Sensen
    • National Research Council Canada, Institute for Marine Biosciences, Halifax, Nova Scotia, Canada, B3H 3Z1
  • R. A. Garrett
    • Institute of Molecular Biology, Sølvgade, DK-1307 København K., Denmark
  • I. G. Clausen
    • Novo Nordisk A/S, Enzyme Research, Bioinformatics and DNA Sequencing, Novo Alle, DK-2880, Bagsværd, Denmark Tel. +45-44-42-66-86; Fax +45-44-42-30-15 e-mail: ntol@novo.dk
ORIGINAL PAPER

DOI: 10.1007/s007920070032

Cite this article as:
Tolstrup, N., Sensen, C., Garrett, R. et al. Extremophiles (2000) 4: 175. doi:10.1007/s007920070032

Abstract

The translational starts of 144 Sulfolobus solfataricus genes have been determined by database comparison. Half the genes lie inside operons and the other half are at the start of an operon or single genes. A Shine–Dalgarno sequence is found upstream of the genes inside operons, but not for the first gene in an operon or isolated genes; this indicates that two different mechanisms are used for translation initiation in S. solfataricus. A box A transcriptional signal is found for the genes starting an operon or isolated genes, but not for the genes inside an operon. The box A signal is located about 27 nt upstream of the start codon, which implies that little or no upstream sequence is available for translation initiation for this group of genes. This finding is discussed.

Key wordsSulfolobus solfataricusTranslation initiationShineDalgarnoTranscriptionCrenarchaeota

Copyright information

© Springer-Verlag Tokyo 2000