UDP-N-acetylglucosamine--dolichyl-phosphate N-acetylglucosaminephosphotransferase (EC 2.7.8.15) (GlcNAc-1-P transferase) (G1PT) (GPT) (N-acetylglucosamine-1-phosphate transferase)
1_MWAFS 6_ ELPMP 11_ LLINL 16_ IVSLL 21_ GFVAT 26_ VTLIP 31_ AFRGH 36_ FIAAR 41_ LCGQD 46_ LNKTS 51_ RQQIP 56_ ESQGV 61_ ISGAV 66_ FLIIL 71_ FCFIP 76_ FPFLN 81_ CFVKE 86_ QCKAF 91_ PHHEF 96_ VALIG 101_ ALLAI 106_ CCMIF 111_ LGFAD 116_ DVLNL 121_ RWRHK 126_ LLLPT 131_ AASLP 136_ LLMVY 141_ FTNFG 146_ NTTIV 151_ VPKPF 156_ RPILG 161_ LHLDL 166_ GILYY 171_ VYMGL 176_ LAVFC 181_ TNAIN 186_ ILAGI 191_ NGLEA 196_ GQSLV 201_ ISASI 206_ IVFNL 211_ VELEG 216_ DCRDD 221_ HVFSL 226_ YFMIP 231_ FFFTT 236_ LGLLY 241_ HNWYP 246_ SRVFV 251_ GDTFC 256_ YFAGM 261_ TFAVV 266_ GILGH 271_ FSKTM 276_ LLFFM 281_ PQVFN 286_ FLYSL 291_ PQLLH 296_ IIPCP 301_ RHRIP 306_ RLNIK 311_ TGKLE 316_ MSYSK 321_ FKTKS 326_ LSFLG 331_ TFILK 336_ VAESL 341_ QLVTV 346_ HQSET 351_ EDGEF 356_ TECNN 361_ MTLIN 366_ LLLKV 371_ LGPIH 376_ ERNLT 381_ LLLLL 386_ LQILG 391_ SAITF 396_ SIRYQ 401_LVRLF
1: UDP-N-acetylglucosamine--dolichyl-phosphate N-acetylglucosaminephosphotransferase that operates in the biosynthetic pathway of dolichol-linked oligosaccharides, the glycan precursors employed in protein asparagine (N)-glycosylation. The assembly of dolichol-linked oligosaccharides begins on the cytosolic side of the endoplasmic reticulum membrane and finishes in its lumen. The sequential addition of sugars to dolichol pyrophosphate produces dolichol-linked oligosaccharides containing fourteen sugars, including two GlcNAcs, nine mannoses and three glucoses. Once assembled, the oligosaccharide is transferred from the lipid to nascent proteins by oligosaccharyltransferases. Catalyzes the initial step of dolichol-linked oligosaccharide biosynthesis, transfering GlcNAc-1-P from cytosolic UDP-GlcNAc onto the carrier lipid dolichyl phosphate (P-dolichol), yielding GlcNAc-P-P-dolichol embedded in the cytoplasmic leaflet of the endoplasmic reticulum membrane