Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2 (Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 63 kDa subunit) (RIBIIR) (Ribophorin II) (RPN-II) (Ribophorin-2)
1_MAPPG 6_ SSTVF 11_ LLALT 16_ IIAST 21_ WALTP 26_ THYLT 31_ KHDVE 36_ RLKAS 41_ LDRPF 46_ TNLES 51_ AFYSI 56_ VGLSS 61_ LGAQV 66_ PDAKK 71_ ACTYI 76_ RSNLD 81_ PSNVD 86_ SLFYA 91_ AQASQ 96_ ALSGC 101_ EISIS 106_ NETKD 111_ LLLAA 116_ VSEDS 121_ SVTQI 126_ YHAVA 131_ ALSGF 136_ GLPLA 141_ SQEAL 146_ SALTA 151_ RLSKE 156_ ETVLA 161_ TVQAL 166_ QTASH 171_ LSQQA 176_ DLRSI 181_ VEEIE 186_ DLVAR 191_ LDELG 196_ GVYLQ 201_ FEEGL 206_ ETTAL 211_ FVAAT 216_ YKLMD 221_ HVGTE 226_ PSIKE 231_ DQVIQ 236_ LMNAI 241_ FSKKN 246_ FESLS 251_ EAFSV 256_ ASAAA 261_ VLSHN 266_ RYHVP 271_ VVVVP 276_ EGSAS 281_ DTHEQ 286_ AILRL 291_ QVTNV 296_ LSQPL 301_ TQATV 306_ KLEHA 311_ KSVAS 316_ RATVL 321_ QKTSF 326_ TPVGD 331_ VFELN 336_ FMNVK 341_ FSSGY 346_ YDFLV 351_ EVEGD 356_ NRYIA 361_ NTVEL 366_ RVKIS 371_ TEVGI 376_ TNVDL 381_ STVDK 386_ DQSIA 391_ PKTTR 396_ VTYPA 401_ KAKGT 406_ FIADS 411_ HQNFA 416_ LFFQL 421_ VDVNT 426_ GAELT 431_ PHQTF 436_ VRLHN 441_ QKTGQ 446_ EVVFV 451_ AEPDN 456_ KNVYK 461_ FELDT 466_ SERKI 471_ EFDSA 476_ SGTYT 481_ LYLII 486_ GDATL 491_ KNPIL 496_ WNVAD 501_ VVIKF 506_ PEEEA 511_ PSTVL 516_ SQNLF 521_ TPKQE 526_ IQHLF 531_ REPEK 536_ RPPTV 541_ VSNTF 546_ TALIL 551_ SPLLL 556_ LFALW 561_ IRIGA 566_ NVSNF 571_ TFAPS 576_ TIIFH 581_ LGHAA 586_ MLGLM 591_ YVYWT 596_ QLNMF 601_ QTLKY 606_ LAILG 611_ SVTFL 616_ AGNRM 621_ LAQQA 626_VKRTA
1: Subunit of the oligosaccharyl transferase (OST) complex that catalyzes the initial transfer of a defined glycan (Glc(3)Man(9)GlcNAc(2) in eukaryotes) from the lipid carrier dolichol-pyrophosphate to an asparagine residue within an Asn-X-Ser/Thr consensus motif in nascent polypeptide chains, the first step in protein N-glycosylation (PubMed:31831667). N-glycosylation occurs cotranslationally and the complex associates with the Sec61 complex at the channel-forming translocon complex that mediates protein translocation across the endoplasmic reticulum (ER). All subunits are required for a maximal enzyme activity