2.4.1.41	acetonitrile	10% (v/v) acetonitrile reduces enzyme activity to about 60%	981	
2.4.1.41	ADP	weak	13	
2.4.1.41	alphaS1-casein	strong inhibition of GalNAc transfer to kappa-casein, reversed by Ca2+	31174	
2.4.1.41	AMP	-	30	
2.4.1.41	ATP	weak	4	
2.4.1.41	benzyl N-acetyl-alpha-D-galactosamine	-	210446	
2.4.1.41	benzyl-alpha-GalNAc	-	14363	
2.4.1.41	benzyl-N-acetyl-alpha-D-galactosaminide	benzyl-GalNAc, 2 mM over night in Hek293T cell culture, abolishes activity of transiently transfected xGalntl-1 in Hek293T cells like inhibition of Smad2 phosphorylation by ActR-IIB and induction of a migration shift of ActR-IIB and Alk-3	143824	
2.4.1.41	CDP	-	212	
2.4.1.41	CMP	-	100