ALG1 chitobiosyldiphosphodolichol beta-mannosyltransferase MAASCLVLLA LCLLLPLLLL GGWKRWRRGR AARHVVAVVL GDVGRSPRMQ YHALSLAMHG FSVTLLGFCN SKPHDELLQN NRIQIVGLTE LQSLAVGPRV FQYGVKVVLQ AMYLLWKLMW REPGAYIFLQ VCLALLSAGS WAAFVEASSS LTGTTMATPS WVWCMAPTIP SFCWPSGTRS SLGA