O-Antigen Description

Serogroup:O23 A
Serotype H:16
Serotype K:
Strain:
Structure:
                                  aDGlc(1->6)
                                           |
->6)aDGlc(1->4)bDGal(1->3)aDGalNAc(1->3)bDGlcNAc(1->
                  |
      bDGlcNAc(1->3)
Comment:- Structure [1]
- Cross-reacts with O18 [2]
GTs
GT nameDonorAcceptorPosition | Link.NumSimilar to
O023_03

bDGlcNAc(1->

->3)aDGal

GT NameDonorAcceptorScore / e-value
O142-O142_11


120 / 1e-33
O3-WclU


108 / 5e-29
O18-wekU

bDGlcNAc(1->

->3)aDGal

106 / 1e-28
O38-O038_06


101 / 1e-26
ncbi CAZy
- Reference [3]
GT nameDonorAcceptorPosition | Link.NumSimilar to
O023_05

GT NameDonorAcceptorScore / e-value
O82-O082_07


150 / 4e-46
O38-O038_07


144 / 8e-44
O124-WfeR


111 / 5e-31
O164-WfeR


111 / 5e-31
ncbi CAZy
- Reference [3]
GT nameDonorAcceptorPosition | Link.NumSimilar to
O023_06

bDGal(1->

->3)aDGalNAc

GT NameDonorAcceptorScore / e-value
O127-WbiP


251 / 1e-84
O90-O090_13


251 / 1e-84
O86-WbnJ

bDGal(1->

->3)aDGalNAc

236 / 2e-78
O86-WcmC

bDGal(1->

->3)aDGalNAc

236 / 2e-78
O86-WbwJ


235 / 3e-78
O55-WbgO


143 / 1e-42
O55-WbgO


143 / 1e-42
O126-WbsT


138 / 1e-40
O167-WfdH


115 / 7e-32
O128-WbsK

bDGalNAc(1->

->4)aDGal

112 / 7e-31
O185-O185_03


101 / 6e-27
O171-O171_13


95 / 1e-24
O74-O074_09


94 / 2e-24
O71-WdaK

bDGal(1->

->3)aDGalNAc

94 / 3e-24
O5-O05_15


93 / 7e-24
O113-WbnA


93 / 8e-24
O160-O160_08


92 / 1e-23
O33-O033_09


92 / 2e-23
O54-O054_06


91 / 3e-23
O112-WfeJ


89 / 1e-22
O178-O178_09


89 / 2e-22
O153-O153_06


89 / 2e-22
O102-WelM

bDGalNAc(1->

->3)aDGal

89 / 2e-22
O48-O048_06


84 / 1e-20
O37-O037_13


84 / 7e-21
O130-WffH'


83 / 2e-20
O37-O037_11


83 / 2e-20
O146-WbwW


81 / 6e-20
O114-WbuP

bDGal(1->

->3)aDGlcNAc

81 / 6e-20
ncbi CAZy
- Reference [3]
NMR
1H-NMR4.86 3.39 3.68 3.40 4.26 4.09 3.91 4.46 3.57 3.69 4.18 3.68 3.87 3.78 5.37 4.35 3.86 4.14 3.86 3.90 3.70 4.56 3.82 3.73 3.86 3.57 4.01 3.74 4.64 3.53 3.51 3.34 3.38 3.83 3.72 4.95 3.52 3.71 3.39 3.67 3.71 3.71 1.96 1.97 1.98
Solvent: D2O
Temp: 80C
pD:
Ref: Acetone 2.225 ppm
Comment: 1H-NMR [1)
13C-NMR100.30 73.30 74.10 70.50 71.40 69.30 106.10 71.70 82.00 76.30 76.60 61.00 98.70 49.80 78.30 69.80 72.00 62.60 103.00 55.50 79.80 72.00 75.60 66.80 104.40 57.00 75.40 72.00 77.10 62.00 99.70 72.90 74.50 71.00 73.30 61.90
Solvent: D2O
Temp: 80C
pD:
Ref: Acetone 31.45 ppm
Comment: 13C-NMR [1]
Literature
  • First Author: Bartelt, M. "Structure of the O-specific polysaccharide of the O23 antigen (LPS) from Escherichia coli O23:K?:H16". Carbohydrate Research. 248. (1993), pp 233-240 PubMed: [7504580]
  • Acta Pathologica, Microbiologica, et Immunologica Scandinavica. 62. (1945), pp 1-172