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Int J Biol Macromol. 2021 Nov 30;191:182-191. doi: 10.1016/j.ijbiomac.2021.09.073. Epub 2021 Sep 16.

The K26 capsular polysaccharide from Acinetobacter baumannii KZ-1098: Structure and cleavage by a specific phage depolymerase.

International journal of biological macromolecules

Anastasiya A Kasimova, Nikolay P Arbatsky, Olga Y Timoshina, Mikhail M Shneider, Alexander S Shashkov, Alexander O Chizhov, Anastasiya V Popova, Ruth M Hall, Johanna J Kenyon, Yuriy A Knirel

Affiliations

  1. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
  2. M. M. Shemyakin & Y. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
  3. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia. Electronic address: [email protected].
  4. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia. Electronic address: [email protected].
  5. State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia.
  6. School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia. Electronic address: [email protected].
  7. Centre for Immunology and Infection Control, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology. Brisbane, Australia. Electronic address: [email protected].

PMID: 34537298 DOI: 10.1016/j.ijbiomac.2021.09.073

Abstract

The KL26 gene cluster responsible for the synthesis of the K26 capsular polysaccharide (CPS) of Acinetobacter baumannii includes rmlBDAC genes for l-rhamnose (l-Rhap) synthesis, tle to generate 6-deoxy-l-talose (l-6dTalp) from l-Rhap, and a manC gene for D-mannose (D-Manp) that is rare in Acinetobacter CPS. K26 CPS material was isolated from A. baumannii isolate KZ-1098, and studied by sugar analysis, Smith degradation, and one and two-dimensional

Copyright © 2021 Elsevier B.V. All rights reserved.

Keywords: 6-deoxy-l-talose; A. baumannii; Capsular polysaccharide structure; Depolymerization; Phage depolymerase

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