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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_142345

• Article ID: 4554
  Kokoulin MS, Kalinovsky AI, Komandrova NA, Tovarchi VE, Tomshich SV, Nedashkovskaya OI, Vaskovsky VE "The structure of the O-specific polysaccharide from marine bacterium Litorimonas taeanensis G5 containing 2-acetamido-4-((3S,5S)-3,5-dihydroxyhexanamido)-2,4-dideoxy-D-quinovose and 2-acetamido-2,6-dideoxy-L-xylo-hexos-4-ulose" - Carbohydrate Research 375 (2013) 105-111
  

  The O-polysaccharide was isolated from the lipopolysaccharide of Litorimonas taeanensis G5T and studied by chemical methods along with 1H and 13C NMR spectroscopy, including 1H, 1H COSY, 1D and 2D TOCSY, NOESY, 1H, 13C HSQC, HMBC, and H2BC experiments. The following new structure of the O-polysaccharide of L. taeanensis G5T containing 2-acetamido-2-deoxy-d-galacturonic acid (d-GalNAcA), 2-acetamido-4-((3S,5S)-3,5-dihydroxyhexanamido)-2,4-dideoxy-d-quinovose (d-QuiNAc4NR), and 2-acetamido-2,6-dideoxy-l-xylo-hexos-4-ulose (l-Sug) was established: where R is (3S,5S)-3,5-dihydroxyhexanoic acid.

  O-specific polysaccharide, 2-acetamido-2, 6-dideoxy-L-xylo-hexos-4-ulose, 2-Acetamido-4-((3S, 5S)-3, 5-dihydroxyhexanamido)-2, 4-dideoxy-D-quinovose, Litorimonas taeanensis

  NCBI PubMed ID: 23694711
  Publication DOI: 10.1016/j.carres.2013.04.004
  Journal NLM ID: 0043535
  Publisher: Elsevier
  Correspondence: maxchem@mail.ru
  Institutions: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
  Methods: 13C NMR, 1H NMR, GLC-MS, NMR-2D, sugar analysis, GLC, mild acid hydrolysis, NMR-1D, triflic acid solvolysis, borohydride reduction
  
   
  
  Litorimonas taeanensis G5
  CSDB ID 29240 (all data & tools)
• Article ID: 6301
  Qin CJ, Ding MR, Tian GZ, Zou XP, Fu JJ, Hu J, Yin J "Chemical approaches towards installation of rare functional groups in bacterial surface glycans" - Chinese Journal of Natural Medicines = Zhongguo Tianran Yaowu 20(6) (2022) 401-420
  

  Bacterial surface glycans perform a diverse and important set of biological roles, and have been widely used in the treatment of bacterial infectious diseases. The majority of bacterial surface glycans are decorated with diverse rare functional groups, including amido, acetamidino, carboxamido and pyruvate groups. These functional groups are thought to be important constituents for the biological activities of glycans. Chemical synthesis of glycans bearing these functional groups or their variants is essential for the investigation of structure-activity relationships by a medicinal chemistry approach. To date, a broad choice of synthetic methods is available for targeting the different rare functional groups in bacterial surface glycans. This article reviews the structures of naturally occurring rare functional groups in bacterial surface glycans, and the chemical methods used for installation of these groups.

  chemical synthesis, acetamidino group, amido group, bacterial surface glycan, carboxamido group, pyruvyl ketal

  NCBI PubMed ID: 35750381
  Publication DOI: 10.1016/S1875-5364(22)60177-8
  Journal NLM ID: 101504416
  Publisher: Beijing: Science Press; Elsevier
  Correspondence: J. Yin
  Institutions: Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China, Wuxi School of Medicine, Jiangnan University, Wuxi, China
  
   
  
  Litorimonas taeanensis G5T
  CSDB ID 21176 (all data & tools)