"n-acylsphingosine galactosyltransferase" . . "N-acetylgalactosaminide \u03B2-1,3-galactosyltransferase" . "N-acylsphingosine galactosyltransferase" . . "N-acylsphingosine galactosyltransferase" . . "''N''-acylsphingosine galactosyltransferase" . . . . . . "2.4.1.47" .