Table 1.

Mice with gene-targeted deficiencies for enzymes involved in the synthesis of O-glycans.

Gene	Full enzyme name	Abbreviated name(s)	Function	Reference
Gcnt1a	Core 2 β1-6 N-acetylglucosaminyltransferase-I	C2GlcNAcT-I; C2GnT-I	Initial β1-6 GlcNAc for core 2 O-glycans	Ellies et al. (15)
Fut7	α1-3 fucosyltransferase VII	FutVII; FucTVII	Fucosyltransferase for Lewis X synthesis (Major)	Maly et al. (16)
Fut4	α1-3 fucosyltransferase IV	FutIV; FucTIV	Fucosyltransferase for Lewis X synthesis (Minor)	Homeister et al. (17)
St3gal4	ST3 β-galactoside α2-3 sialyltransferase IV	ST3Gal-IV	Sialylation of Lewis X (Major)	Ellies et al. (18)
St3gal6	ST3 β-galactoside α2-3 sialyltransferase VI	ST3Gal-VI	Sialylation of Lewis X (Minor)	Yang et al. (19)
B3Gnt3	β1-3 N-acetylglucosaminyltransferase-3	β3GnT-3	Extension of Core 1 O-glycans	Yeh et al. (20)
St3Gal1a	ST3 β-galactoside α2-3 sialyltransferase-I	ST3Gal-I	Core 1 sialylation	Priatel et al. (21)

^aMice with conditional potential available.