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Table 1 Disaccharide composition of the ascidian DSs

From: Dermatan sulfate in tunicate phylogeny: Order-specific sulfation pattern and the effect of [→4IdoA(2-Sulfate)β-1→3GalNAc(4-Sulfate)β-1→] motifs in dermatan sulfate on heparin cofactor II activity

  Δ-Disaccharide (Mol%)
Δ-Disaccharide Order Stolidobranchia Order Phlebobranchia
  S.plicata a H.pallida c H.pyriformis b H.roretzi c P.nigra b C.intestinalis c
ΔHexUA-GalNAc - 0.25 - 0.7 1.1 5.61
ΔHexUA(2S)- GalNAc - - - 1.2 - -
ΔHexUA- GalNAc(6S) 1 - 1 - 21.4 25.35
ΔHexUA- GalNAc(4S) 28 18.46 29 20.8 - 30.7
ΔHexUA(2S)- GalNAc(6S) 5 0.54 - - 76.6 36.1
ΔHexUA(2S)- GalNAc(4S) 66 80.76 70 77.3 - 2.17
ΔHexUA(2S)- GalNAc(4.6S) - - - - 0.9 -
  1. a Data from reference [6]
  2. b Data from reference [5]
  3. c Data obtained in this work-The areas under the peaks in Fig.4 were integrated to obtain the proportion of the disaccharides.