The recently identified novel core-9 type fragment α--GlcpNAc-(1→6)-[β--Galp-(1→3)-]α--GalpNAc in the pentasaccharide O-glycan of CcTx of C. consors [52] would require an α-1,6-N-acetyl--glucosaminyltransferase, an enzyme that also has not yet been described.