[
  {
    "gtc_id":	"G73001SO",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)[Neu5Ac(a2-8)Neu5Ac(a2-3)Gal(a1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	2162.73
  },
  {
    "gtc_id":	"G40748TG",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	254.1
  },
  {
    "gtc_id":	"G00031MO",
    "iupac_condensed":	"Gal(b1-3)GalNAc(a1-",
    "motif":	"[{\"label\":\"O-Glycan core 1\",\"id\":\"G00031MO\"},{\"label\":\"T antigen\",\"id\":\"G00031MO\"},{\"label\":\"TF antigen\",\"id\":\"G00031MO\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	383.14
  },
  {
    "gtc_id":	"G08648UJ",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-3)[Neu5Ac(a2-3)Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1580.53
  },
  {
    "gtc_id":	"G36476BA",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)[GalNAc(b1-4)]Gal(b1-4)Glc(b1-",
    "motif":	"[{\"label\":\"GT2\",\"id\":\"G36476BA\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	1418.48
  },
  {
    "gtc_id":	"G71158TZ",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-3)[Neu5Ac(a2-8)Neu5Ac(a2-3)Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1871.63
  },
  {
    "gtc_id":	"G08624VL",
    "iupac_condensed":	"Neu5Ac9Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)[GalNAc(b1-4)]Gal(b1-4)Glc(b1-",
    "motif":	"[{\"label\":\"GD2\",\"id\":\"G02657AK\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	1460.49
  },
  {
    "gtc_id":	"G21518JT",
    "iupac_condensed":	"Neu5Ac(a2-3)[Neu5Ac(a2-3)Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1289.44
  },
  {
    "gtc_id":	"G94547EX",
    "iupac_condensed":	"Neu5Ac9Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)Gal(b1-4)Glc(b1-",
    "motif":	"[{\"label\":\"9-O-Acetyl GD3\",\"id\":\"G98544DH\"},{\"label\":\"GD3\",\"id\":\"G98544DH\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	1257.41
  },
  {
    "gtc_id":	"G84052PW",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-3)[Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1289.44
  },
  {
    "gtc_id":	"G15021LG",
    "iupac_condensed":	"Glc(?1-",
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G53140PB",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)[Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1580.53
  },
  {
    "gtc_id":	"G54434YJ",
    "iupac_condensed":	"Neu5Ac(a2-8)Neu5Ac(a2-8)Neu5Ac(a2-3)[Neu5Ac(a2-3)Gal(b1-3)GalNAc(b1-4)]Gal(b1-4)Glc",
    "motif":	"[{\"label\":\"GM4\",\"id\":\"G30207PZ\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1871.63
  },
  {
    "gtc_id":	"G68158BT",
    "iupac_condensed":	"Gal(?1-",
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  }
]