Cell surface carbohydrates have been proven optimal targets for vaccine development. Conjugation of polysaccharides to a carrier protein triggers a T-cell dependent immune response to the glycan moiety. Licensed glycoconjugate vaccines are produced by chemical conjugation of capsular polysaccharides to prevent meningitis caused by meningococcus, pneumococcus and Haemophilus influenzae type b. However, other classes of carbohydrates (O-antigens, exopolysaccharides, wall/teichoic acids) represent attractive targets for developing vaccines.Recent analysis from WHO/CHO underpins alarming concern towards antibiotic resistant bacteria, such as the so called ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter spp.) and additional pathogens such as Clostridium difficile and Group A Streptococcus. Fungal infections are also becoming increasingly invasive for immunocompromised patients or hospitalized individuals. Other emergencies could derive from bacteria which spread during environmental calamities (Vibrio cholerae) or with potential as bioterrorism weapons (Burkholderia pseudomallei and mallei, Francisella tularensis). Vaccination could aid reducing the use of broad spectrum antibiotics and provide protection by herd immunity also to individuals who are not vaccinated.This review analyses structural and functional differences of the polysaccharides exposed on the surface of emerging pathogenic bacteria, combined with medical need and technological feasibility of corresponding glycoconjugate vaccines.

carbohydrates, glycoconjugates, vaccines, glycoengineering, antimicrobial resistance

• Compound ID: 906
  

  -3)-b-D-6dmanHepp2Ac-(1-

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  Structure type: homopolymer
  Trivial name: 6-deoxy-heptan CPS
  Compound class: CPS, O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G09650IH, GlycomeDB:3383
  
   
  
  Burkholderia pseudomallei
  CSDB ID 12685 (all data & tools)
• Compound ID: 13095
  

  /Variants 0/-+ | -3)-a-L-6dTalp-(1-3)-b-D-Glcp-(1- /Variants 0/ is: Ac-2)- OR (exclusively) 33%Me-2)-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  
   
  
  Burkholderia pseudomallei
  CSDB ID 12686 (all data & tools)
• Compound ID: 7436
  

  a-D-Glcp-(1-2)-b-D-Glcp-(1-6)-+ | a-D-GlcpNAc-(1-2)-b-D-Glcp-(1-4)-a-D-Glcp-(1-5)-Kdo | b-D-Glcp-(1-3)-+

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  Structure type: oligomer
  Trivial name: LOS C
  Compound class: LOS
  Reference(s) to other database(s): GTC:G51576CE, GlycomeDB:34984
  
   
  
  Moraxella catarrhalis C
  CSDB ID 12709 (all data & tools)
• Compound ID: 3860
  

  a-D-GlcpNAc-(1-2)-b-D-Glcp-(1-4)-+ | a-D-Galp-(1-4)-b-D-Galp-(1-4)-a-D-Glcp-(1-2)-b-D-Glcp-(1-6)-a-D-Glcp-(1-5)-Kdo | b-D-Glcp-(1-3)-+

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  Structure type: oligomer
  Trivial name: LOS A
  Compound class: core oligosaccharide, LOS
  Reference(s) to other database(s): GTC:G18731PT, GlycomeDB:34949
  
   
  
  Moraxella catarrhalis A
  CSDB ID 12707 (all data & tools)
• Compound ID: 211
  

  b-D-Galp-(1-4)-a-D-Glcp-(1-2)-b-D-Glcp-(1-6)-+ | b-D-Galp-(1-4)-a-D-Glcp-(1-2)-b-D-Glcp-(1-4)-a-D-Glcp-(1-5)-Kdo | b-D-Glcp-(1-3)-+

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  Structure type: oligomer
  Trivial name: glycoform 1, LOS A
  Compound class: core oligosaccharide, LOS
  Reference(s) to other database(s): GTC:G53017TN, GlycomeDB:37671
  
   
  
  Moraxella catarrhalis B
  CSDB ID 12708 (all data & tools)
• Compound ID: 267
  

  -3)-a-L-Rhap-(1-3)-a-L-Rhap-(1-2)-a-D-Galp-(1-3)-a-D-GlcpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G76746EO, GlycomeDB:6223
  
   
  
  Shigella dysenteriae 1
  CSDB ID 12722 (all data & tools)
• Compound ID: 1030
  

  -6)-b-D-GlcpNAc-(1-

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  Structure type: homopolymer
  Trivial name: poly-β-1,6-GlcNAc (PGA), biofilm, poly-b-(1-6)-N-acetyl-D-glucosamine (PNAG), poly-β-N-acetyl-glucosamine (PNAG), PNAG, poly-N-acetylglucosamine, PNAG
  Compound class: CPS, EPS, O-polysaccharide, glucan, polysaccharide
  Reference(s) to other database(s): GTC:G36952FI, GlycomeDB:11210
  
   
  
  Acinetobacter baumannii
  CSDB ID 12684 (all data & tools)
• Compound ID: 11433
  

  /Variants 0/-+ | -3)-b-D-QuipNAc4N-(1-4)-a-D-GlcpNAc6(70%)Ac-(1-4)-a-D-GalpNAcA-(1- /Variants 0/ is: 50%3HOBut-(1-4)- OR (exclusively) 50%Ac-4)-

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  Structure type: polymer chemical repeating unit
  Trivial name: K1 capsular polysaccharide, K1 CPS
  Compound class: CPS
  
   
  
  Acinetobacter baumannii
  CSDB ID 12947 (all data & tools)
• Compound ID: 1193
  

  -3)-b-D-ManpNAcA4Ac-(1-3)-a-L-FucpNAc-(1-3)-a-D-FucpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: CP8
  Compound class: CPS, EPS
  Reference(s) to other database(s): GTC:G32706FD, GlycomeDB:27062
  
   
  
  Staphylococcus aureus 8
  CSDB ID 12716 (all data & tools)
• Compound ID: 13118
  

  S-2,4HOBut-(1-4)-+ S-2,4HOBut-(1-4)-+ | | S-2,4HOBut-(1-4)-a-D-Rhap4N-(1-2)-{{{-a-D-Rhap4N-(1-2)-}}}a-D-Rhap4N

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  Structure type: oligomer
  Compound class: O-polysaccharide
  
   
  
  Vibrio cholerae O1 Inaba
  CSDB ID 12724 (all data & tools)
• Compound ID: 13117
  

  S-2,4HOBut-(1-4)-+ S-2,4HOBut-(1-4)-+ | | S-2,4HOBut-(1-4)-a-D-Rhap4N2Me-(1-2)-{{{-a-D-Rhap4N-(1-2)-}}}a-D-Rhap4N

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  Structure type: oligomer
  Compound class: O-polysaccharide
  
   
  
  Vibrio cholerae O1 Ogawa
  CSDB ID 12723 (all data & tools)
• Compound ID: 13101
  

  {{{-b-D-Galp-(1-3)-a-D-Galp-(1-3)-}}}b-D-Galf-(1-3)-{{{-a-D-Galp-(1-3)-b-D-Galf-(1-3)-}}}a-D-Galp

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  Structure type: oligomer
  Trivial name: D-galactan II-D-galactan I
  Compound class: O-polysaccharide
  Reference(s) to other database(s): GTC:G94030OZ
  
   
  
  Klebsiella pneumoniae O1
  CSDB ID 12703 (all data & tools)
• Compound ID: 13102
  

  {{{-b-D-Galf-(1-3)-b-D-GlcpNAc-(1-5)-}}}b-D-Galf-(1-3)-{{{-a-D-Galp-(1-3)-b-D-Galf-(1-3)-}}}a-D-Galp

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  Structure type: oligomer
  Trivial name: D-galactan I
  Compound class: O-polysaccharide
  Reference(s) to other database(s): GTC:G78049HR
  
   
  
  Klebsiella pneumoniae O2a,c
  CSDB ID 12704 (all data & tools)
• Compound ID: 12944
  

  P0Me-(0-3)-a-D-Manp-(1-2)-{{{-a-D-Manp-(1-2)-a-D-Manp-(1-2)-a-D-Manp-(1-3)-a-D-Manp-(1-3)-a-D-Manp-(1-2)-}}}a-D-Manp-(1-2)-a-D-Manp-(1-2)-a-D-Manp-(1-3)-a-D-Manp-(1-3)-a-D-Manp-(1-3)-a-D-Manp-(1-3)-a-D-Manp

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  Structure type: oligomer
  Compound class: O-polysaccharide, O-antigen
  
   
  
  Klebsiella pneumoniae O3
  CSDB ID 12705 (all data & tools)
• Compound ID: 13098
  

  a-D-Glcp-(1-2)-+ P-3)-+ | | -6)-a-D-Glcp-(1-2)-Gro-(1-P-

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  Structure type: polymer chemical repeating unit
  Compound class: CPS, lipoteichoic acid
  Reference(s) to other database(s): GTC:G09457MJ
  
   
  
  Enterococcus faecalis, Enterococcus faecium
  CSDB ID 12696 (all data & tools)
• Compound ID: 13099
  

  -6)-b-D-Galf-(1-3)-b-D-Glcp-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: diheteroglycan (DHG)
  Compound class: CPS
  Reference(s) to other database(s): GTC:G96639CI
  
   
  
  Enterococcus faecalis, Enterococcus faecium
  CSDB ID 12697 (all data & tools)
• Compound ID: 972
  

  b-D-ManpNAc-(1-2)-+ | -3)-a-L-Rhap-(1-3)-a-L-Rhap-(1-3)-b-L-Rhap-(1-4)-b-D-GlcpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G57484QO, GlycomeDB:6035
  
   
  
  Escherichia coli O1A
  CSDB ID 12690 (all data & tools)
• Compound ID: 13121
  

  b-D-Araf-(1-2)-+ | b-D-Araf-(1-2)-a-D-Araf-(1-3)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf-(1-3)-+ | b-D-Araf-(1-2)-a-D-Araf-(1-5)-+ | | | b-D-Araf-(1-2)-a-D-Araf-(1-3)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf-(1-5)-a-D-Araf

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  Structure type: fragment of a bigger structure
  Trivial name: arabinofuran
  Compound class: cell wall polysaccharide
  Reference(s) to other database(s): GTC:G84999UI
  
   
  
  Mycobacterium tuberculosis
  CSDB ID 12726 (all data & tools)
• Compound ID: 13123
  

  a-D-Manp-(1-2)-+ | a-D-Manp-(1-6)-a-D-Manp-(1-6)-a-D-Manp-(1-6)-a-D-Manp-(1-6)-a-D-Manp

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  Structure type: structural motif or average structure
  Compound class: cell wall polysaccharide
  Reference(s) to other database(s): GTC:G46323XK
  
   
  
  Mycobacterium tuberculosis
  CSDB ID 12727 (all data & tools)
• Compound ID: 13124
  

  LIP-(1-6)-a-D-Manp-(1-2)-+ LIP-(1-2)-+ | | a-D-Manp-(1-6)-a-D-Manp-(1-6)-a-D-Manp-(1-6)-L-myoIno-(1--P--1)--Gro | LIP-(1-3)-+

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  Structure type: structural motif or average structure
  Compound class: cell wall polysaccharide
  
   
  
  Mycobacterium tuberculosis
  CSDB ID 12728 (all data & tools)
• Compound ID: 13120
  

  a-Colp-(1-4)-+ | P-6:4)-+ | | | a-Colp-(1-2)-b-D-Galp-(1-3)-b-D-GlcpNAc-(1-4)-a-D-GalpA-(1-3)-b-D-QuipNAc-(1-3)-L-gro-a-D-manHepp-(1--/core/

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  Structure type: oligomer
  Aglycon: core
  Compound class: O-polysaccharide
  Reference(s) to other database(s): GTC:G41083VK
  
   
  
  Vibrio cholerae O139
  CSDB ID 12725 (all data & tools)
• Compound ID: 8648
  

  a-D-Glcp-(1-4)-+ | -2)-a-L-Rhap3(60%)Ac4(25%)Ac-(1-2)-a-L-Rhap-(1-3)-a-L-Rhap-(1-3)-b-D-GlcpNAcA6(60%)Ac-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G55020SD
  
   
  
  Shigella flexneri 2a
  CSDB ID 12721 (all data & tools)
• Compound ID: 9025
  

  b-D-GlcpNAc-(1-3)-+ | -3)-a-L-Rhap-(1-2)-a-L-Rhap-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: GAS-PS, GAC, GAC, group A carbohydrate, GAC-PS
  Compound class: cell wall polysaccharide
  Reference(s) to other database(s): GTC:G59445KA, GlycomeDB:37806
  
   
  
  Streptococcus sp. A
  CSDB ID 12699 (all data & tools)
• Compound ID: 13112
  

  b-D-GlcpNAc-(1-4)-+ b-D-GlcpNAc-(1-4)-+ | | -3)-Gro-(1--P--3)--{{{-Gro-(1--P--3)--}}}Gro-(1--P--5)--{{{-D-Rib-ol-(1--P--5)--}}}D-Rib-ol-(1-P- | | /Variants 1/-+ /Variants 0/-+ /Variants 0/ is: 50%D-Ala-(1-3)- OR (exclusively) 50%D-Ala-(1-2)- /Variants 1/ is: 50%D-Ala-(1-3)- OR (exclusively) 50%D-Ala-(1-2)-

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  Structure type: polymer chemical repeating unit
  Compound class: teichoic acid
  
   
  
  Staphylococcus aureus
  CSDB ID 12717 (all data & tools)
• Compound ID: 13113
  

  b-D-GlcpNAc-(1-4)-+ | -5)-D-Rib-ol-(1-P-

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  Structure type: polymer chemical repeating unit
  Compound class: teichoic acid
  Reference(s) to other database(s): GTC:G27682YX
  
   
  
  Staphylococcus aureus
  CSDB ID 12718 (all data & tools)
• Compound ID: 13114
  

  Ala-(1-2)-+ Ala-(1-2)-+ | | -3)-Gro-(1--P--3)--{{{-Gro-(1--P--3)--}}}Gro-(1--P--3)--{{{-Gro-(1--P--3)--}}}Gro-(1-P-

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  Structure type: polymer chemical repeating unit
  Compound class: teichoic acid
  
   
  
  Staphylococcus aureus
  CSDB ID 12719 (all data & tools)
• Compound ID: 13116
  

  /Variants 1/-+ /Variants 0/-+ LIP-(1-2)-+ | | | /Variants 2/-D-Gro-(1--P--3)--{{{-D-Gro-(1--P--3)--}}}D-Gro-(1--P--6)--b-D-Glcp-(1-6)-b-D-Glcp-(1-1)-D-Gro | LIP-(1-3)-+ /Variants 0/ is: ?%Ala-(1-2)- OR (exclusively) ?%a-D-GlcpNAc-(1-2)- /Variants 1/ is: ?%Ala-(1-2)- OR (exclusively) ?%a-D-GlcpNAc-(1-2)- /Variants 2/ is: ?%Ala-(1-2)- OR (exclusively) ?%a-D-GlcpNAc-(1-2)-

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  Structure type: oligomer
  Compound class: lipoteichoic acid
  
   
  
  Staphylococcus aureus
  CSDB ID 12720 (all data & tools)
• Compound ID: 1567
  

  -4)-b-D-Glcp-(1-1)-D-Rib-ol-(5-P-

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  Structure type: polymer chemical repeating unit
  Compound class: CPS
  Reference(s) to other database(s): GTC:G24044JJ, GlycomeDB:27407
  
   
  
  Haemophilus influenzae a
  CSDB ID 12700 (all data & tools)
• Compound ID: 1657
  

  -4)-a-D-GalpNAcA6NH2-(1-4)-a-D-GalpNAcA6NH2-(1-3)-b-D-QuipNAc-(1-2)-b-D-Quip4NFo-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: CPS, O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G66306WB, GlycomeDB:3488
  
   
  
  Francisella tularensis
  CSDB ID 12698 (all data & tools)
• Compound ID: 1849
  

  -4)-b-D-ManpNAcA-(1-4)-a-L-FucpNAc3Ac-(1-3)-b-D-FucpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: CP5
  Compound class: CPS, EPS, O-polysaccharide
  Reference(s) to other database(s): GTC:G26399KZ, GlycomeDB:26982
  
   
  
  Staphylococcus aureus 5
  CSDB ID 12715 (all data & tools)
• Compound ID: 4070
  

  a-D-GlcpA-(1-3)-+ | -3)-b-D-Glcp-(1-4)-b-D-Manp-(1-4)-a-D-Glcp-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: K-antigen
  Compound class: CPS, O-polysaccharide
  Reference(s) to other database(s): GTC:G73682RA, GlycomeDB:2875
  
   
  
  Klebsiella pneumoniae K2
  CSDB ID 12702 (all data & tools)
• Compound ID: 3730
  

  -2)-b-D-Glcp-(1-3)-a-L-FucpNAc-(1-3)-b-D-FucpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G17164RY, GlycomeDB:28059
  
   
  
  Pseudomonas aeruginosa O11
  CSDB ID 12713 (all data & tools)
• Compound ID: 3540
  

  S-Pyr-(2-3:2-2)-+ | -4)-b-D-GlcpA-(1-4)-a-L-Fucp-(1-3)-b-D-Glcp-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: K-antigen, S-53 EPS
  Compound class: CPS, EPS
  
   
  
  Klebsiella pneumoniae K1
  CSDB ID 12701 (all data & tools)
• Compound ID: 3700
  

  -4)-a-D-GalpNAc-(1-4)-b-D-GlcpNAc3NAcA-(1-3)-a-D-FucpNAc-(1-3)-a-D-QuipNAc-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: B-band polysaccharid
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G15870HS, GlycomeDB:3409
  
   
  
  Pseudomonas aeruginosa O1
  CSDB ID 12711 (all data & tools)
• Compound ID: 4739
  

  a-D-Fucp3NAc-(1-2)-+ | -4)-b-D-GlcpNAc-(1-3)-a-L-Rhap-(1-2)-a-L-Rhap-(1-3)-b-L-Rhap-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G75832AT, GlycomeDB:28094
  
   
  
  Escherichia coli O2
  CSDB ID 12691 (all data & tools)
• Compound ID: 2186
  

  a-L-Rhap-(1-3)-+ | -4)-a-D-Glcp-(1-3)-a-L-FucpNAc-(1-3)-b-D-GlcpNAc-(1- | b-D-Glcp-(1-6)-+

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G18223OD, GlycomeDB:28106
  
   
  
  Escherichia coli O25
  CSDB ID 12694 (all data & tools)
• Compound ID: 7798
  

  a-L-Rhap-(1-3)-+ | -4)-a-L-Rhap-(1-3)-b-D-Glcp-(1-4)-a-D-Glcp-(1-2)-a-D-Glcp-(1-P-

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  Structure type: polymer chemical repeating unit
  Trivial name: cell-surface polysaccharide, pentaglycosyl phosphate repeating unit cell-surface polysaccharide, rhamnoglucan PSI, PS1, cell-surface polysaccharide PS-I, PSI, PSI repeating unit
  Compound class: cell wall polysaccharide, lipoteichoic acid
  Reference(s) to other database(s): GTC:G60087JR, GlycomeDB:36857
  
   
  
  Clostridium difficile
  CSDB ID 12687 (all data & tools)
• Compound ID: 7799
  

  b-D-Glcp-(1-3)-+ | -6)-b-D-Glcp-(1-3)-b-D-GalpNAc-(1-4)-a-D-Glcp-(1-4)-b-D-GalpNAc-(1-3)-a-D-Manp-(1-P-

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  Structure type: polymer chemical repeating unit
  Trivial name: cell-surface polysaccharide, hexaglycosyl phosphate repeating unit cell-surface polysaccharide, PSII
  Compound class: CPS, cell wall polysaccharide
  Reference(s) to other database(s): GTC:G48239WN, GlycomeDB:36946
  
   
  
  Clostridium difficile
  CSDB ID 12688 (all data & tools)
• Compound ID: 13096
  

  P-6)-+ | SUG-(1-6)-a-D-GlcpNAc-(1-3)-a-D-GlcpNAc-(1-2)-GroA

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  Structure type: fragment of a bigger structure
  Trivial name: PSIII
  Compound class: lipoteichoic acid
  
   
  
  Clostridium difficile
  CSDB ID 12689 (all data & tools)
• Compound ID: 7033
  

  -3)-a-L-Rhap-(1-4)-a-D-GalpNAcA3Ac-(1-4)-a-D-GalpNFoA-(1-3)-a-D-QuipNAc-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G24345RY, GlycomeDB:28052
  
   
  
  Pseudomonas aeruginosa O6
  CSDB ID 12712 (all data & tools)
• Compound ID: 7301
  

  b-D-GlcpNAc-(1-2)-+ | -4)-a-D-GalpNAc-(1-3)-b-D-Manp-(1-4)-b-D-Manp-(1-3)-a-D-GlcpNAc-(1-

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  Structure type: suggested polymer biological repeating unit
  Compound class: O-polysaccharide, O-antigen, LPS
  Reference(s) to other database(s): GTC:G95178VE, GlycomeDB:16460, CCSD:34570, CBank-STR:13545
  
   
  
  Escherichia coli O6:K54
  CSDB ID 12693 (all data & tools)
• Compound ID: 7454
  

  -4)-a-D-GlcpNAc-(1-P-

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  Structure type: homopolymer
  Compound class: CPS, O-polysaccharide, K-antigen, O-antigen
  Reference(s) to other database(s): GTC:G19079RT, GlycomeDB:34729
  
   
  
  Neisseria meningitidis X
  CSDB ID 12710 (all data & tools)
• Compound ID: 129
  

  -3)-a-D-Fucp4NAc-(1-4)-b-D-ManpNAcA-(1-4)-a-D-GlcpNAc-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: ECA, ECA LPS, enterobacterial common antigen (ECA)
  Compound class: enterobacterial common antigen
  Reference(s) to other database(s): GTC:G63996VH, GlycomeDB:7812
  
   
  
  (Enterobacteriaceae)
  CSDB ID 12695 (all data & tools)
• Compound ID: 13109
  

  ?%a-D-Glcp-(1-6)-+ | /Variants 0/-+ | | | a-Parp-(1-3)-+ | | | | | -2)-a-D-Manp-(1-4)-a-L-Rhap-(1-3)-a-D-Galp-(1- /Variants 0/ is: ?%Ac-3)- OR (exclusively) ?%Ac-2)-

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  Structure type: polymer chemical repeating unit
  Compound class: O-polysaccharide, O-antigen
  
   
  
  Salmonella Paratyphi A
  CSDB ID 12714 (all data & tools)
• Compound ID: 5104
  

  b-D-Glcp-(1-2)-+ | -4)-a-D-GalpNAc-(1-3)-b-D-Manp-(1-4)-b-D-Manp-(1-3)-a-D-GlcpNAc-(1-

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  Structure type: suggested polymer biological repeating unit
  Compound class: O-polysaccharide, O-antigen, LPS
  Reference(s) to other database(s): GTC:G95910WE, GlycomeDB:16459, CCSD:34569, CBank-STR:13541
  
   
  
  Escherichia coli O6A
  CSDB ID 12692 (all data & tools)
• Compound ID: 2011
  

  a-D-Galp-(1-4)-+ | -3)-b-D-Galf-(1-3)-a-D-Galp-(1-

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  Structure type: polymer chemical repeating unit
  Trivial name: D-galactan-III, D-galactan III
  Compound class: O-polysaccharide, O-antigen
  Reference(s) to other database(s): GTC:G38255JW, GlycomeDB:16920
  
   
  
  Klebsiella pneumoniae ST258
  CSDB ID 12706 (all data & tools)