However, it was shown that transfection of Human ST6GalNAc V into U373MG glioma cells produced the unusual α2,6-monosialoganglioside, GM2α (Neu5Acα2-6GalNAcβ1-4Galβ1-4Glc-Cer, III6Neu5Ac1Gg3-Cer) instead of GD1α[15]. This evidence concerns the gene CBLN1 and central nervous system cancer.