O-Antigen Description

Serogroup:O44
Serotype H:18
Serotype K:
Strain:
Structure:
                    aDGlc(1->4)
                             |
->6)aDMan(1->2)aDMan(1->2)bDMan(1->3)aDGlcNAc(1->
Comment:- Structure [1]
- Very similar to strain 73-1, serogroup O73 ab
GTs
GT nameDonorAcceptorPosition | Link.NumSimilar to
O044_02

aDMan(1->

->2)bDMan

GT NameDonorAcceptorScore / e-value
O73-WbaC

aDMan(1->

->2)bDMan

641 / 0.0
O17-O017_02


641 / 0.0
O77-WbaC

aDMan(1->

->2)DMan

641 / 0.0
O106-WbaC


639 / 0.0
O176-O176_06


192 / 7e-60
GT nameDonorAcceptorPosition | Link.NumSimilar to
O044_03

bDMan(1->

->3)aDGlcNAc

GT NameDonorAcceptorScore / e-value
O17-O017_03


650 / 0.0
O106-WbaD


649 / 0.0
O73-WbaD

bDMan(1->

->3)aDGlcNAc

649 / 0.0
O77-WbaD

bDMan(1->

->3)aDGlcNAc

649 / 0.0
O179-O179_08


369 / 1e-128
O62-O062_12


357 / 4e-124
O6-Orf7


345 / 2e-119
O59-WclC


209 / 2e-66
O176-O176_05


80 / 6e-19
NMR
1H-NMR5.31 4.08 4.01 3.76 3.94 5.27 3.55 3.66 3.40 3.72 5.06 4.10 3.83 3.96 3.76 3.54 4.11 4.85 4.07 3.92 3.55 3.75 4.77 3.97 3.95 3.81 3.54
Solvent: D2O
Temp: 70C
pD: 6
Ref: TSP 0.00 ppm
Comment: 1H-NMR [1], pD=6
13C-NMR100.20 78.50 71.00 67.70 73.50 61.60 101.00 72.70 73.90 70.40 73.70 61.70 103.20 70.80 71.60 66.90 72.50 66.00 98.20 53.80 81.10 69.30 72.70 61.60 100.60 76.20 75.20 76.80 76.20 61.80
Solvent: D2O
Temp: 70C
pD: 6
Ref: Acetone 31.00 ppm
Comment: 13C-NMR [1], pD=6
Literature
  • First Author: Staaf, M. "Structural elucidation of the O-antigenic polysaccharide from Escherichia coli O44:H18". European Journal of Biochemistry. 233(2). (1995), pp 473-477 PubMed: [7588790]
  • First Author: Wang W. "A group of Escherichia coli and Salmonella enterica O antigens sharing a common backbone structure". Microbiology. 153(7). (2007), pp 2159-67 PubMed: [17600060]