Primary structures of ribosomal proteins from the archaebacterium Halobacterium marismortui and the eubacterium Bacillus stearothermophilus

E. Arndt, T. Scholzen, W. Krömer, T. Hatakeyama, M. Kimura

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Approximately 40 ribosomal proteins from each Halobacterium marismortui and Bacillus stearothermophilus have been sequenced either by direct protein sequence analysis or by DNA sequence analysis of the appropriate genes. The comparison of the amino acid sequences from the archaebacterium H marismortui with the available ribosomal proteins from the eubacterial and eukaryotic kingdoms revealed four different groups of proteins: 24 proteins are related to both eubacterial as well as eukaryotic proteins. Eleven proteins are exclusively related to eukaryotic counterparts. For three proteins only eubacterial relatives - and for another three proteins no counterpart - could be found. The similarities of the halobacterial ribosomal proteins are in general somewhat higher to their eukaryotic than to their eubacterial counterparts. The comparison of B stearothermophilus proteins with their E coli homologues showed that the proteins evolved at different rates. Some proteins are highly conserved with 64-76% identity, others are poorly conserved with only 25-34% identical amino acid residues.

Original languageEnglish
Pages (from-to)657-668
Number of pages12
JournalBiochimie
Volume73
Issue number6
DOIs
Publication statusPublished - Jun 1991

All Science Journal Classification (ASJC) codes

  • Biochemistry

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