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Archives of Microbiology

, Volume 121, Issue 3, pp 271–275 | Cite as

The amino acid sequence of the peptide moiety of the pseudomurein from Methanobacterium thermoautotrophicum

  • Helmut König
  • Otto Kandler
Article

Abstract

The amino acid sequence of the peptide subunits of the peptide moiety of the sacculus polymer (pseudomurein) of Methanobacterium thermoautotrophicum was elucidated by analysing overlapping peptides obtained from partial acid hydrolysates of isolated sacculi. It is suggested that the peptide subunits are attached to glycan strands via one of their glutamyl residues. Another glutamyl residue may crosslink two adjacent peptide subunits to form a dimer. The calculated molar ratios of the amino acids and the percentages of the N-or C-terminal amino acid residues of the supposed dimers are compatible with those actually found in the sacculus polymer.

Key words

Methanobacterium thermoautotrophicum Cell wall Pseudomurein Amino acid sequence 

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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • Helmut König
    • 1
  • Otto Kandler
    • 1
  1. 1.Botanisches Institut der Universität MünchenMünchen 19Germany

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