Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A MTKFGFLRLS YEKQDTLLKL LILSMAAVLS FSTRLFAVLR FESVIHEFDP YFNYRTTRFL AEEGFYKFHN WFDDRAWYPL GRIIGGTIYP GLMITSAAIY HVLHFFHITI DIRNVCVFL