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Journal of Bacteriology, January 1999, p. 334-337, Vol. 181, No. 1
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Peptidoglycan Fine Structure of the Radiotolerant Bacterium Deinococcus radiodurans Sark

José Carlos Quintela,1 Francisco García-del Portillo,1 Ernst Pittenauer,2 Günter Allmaier,2 and Miguel A. de Pedro1,*

Centro de Biología Molecular "Severo Ochoa," Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Facultad de Ciencias, Campus de Cantoblanco, 28049 Madrid, Spain,1 and Institute for Analytical Chemistry, University of Vienna, A-1090 Vienna, Austria2

Received 16 October 1998/Accepted 20 October 1998

Peptidoglycan from Deinococcus radiodurans was analyzed by high-performance liquid chromatography and mass spectrometry. The monomeric subunit was: N-acetylglucosamine-N-acetylmuramic acid-L-Ala-D-Glu-(gamma )-L-Orn-[(delta )Gly-Gly]-D-Ala-D-Ala. Cross-linkage was mediated by (Gly)2 bridges, and glycan strands were terminated in (1right-arrow6)anhydro-muramic acid residues. Structural relations with the phylogenetically close Thermus thermophilus are discussed.

* Corresponding author. Mailing address: Centro de Biología Molecular "Severo Ochoa," Facultad de Ciencias U.A.M., Campus de Cantoblanco, 28049 Madrid, Spain. Phone: (34-1) 3978083. Fax: (34-1) 3978087. E-mail: madepedro{at}cbm.uam.es.

Journal of Bacteriology, January 1999, p. 334-337, Vol. 181, No. 1
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


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