Endogenous retrovirus group K member 24 Env polyprotein (Envelope polyprotein) (HERV-K101 envelope protein) (HERV-K_22q11.21 provirus ancestral Env polyprotein) [Cleaved into: Surface protein (SU); Transmembrane protein (TM)]
1_MVTPV 6_ TWMDN 11_ PIEVY 16_ VNDSE 21_ WVPGP 26_ TDDRC 31_ PAKPE 36_ EEGMM 41_ INISI 46_ GYRYP 51_ PICLG 56_ TAPGC 61_ LMPAV 66_ QNWLV 71_ EVPIV 76_ SPISR 81_ FTYHM 86_ VSGMS 91_ LRPRV 96_ NYLQD 101_ FPYQR 106_ SLKFR 111_ PKGKP 116_ CPKEI 121_ PKESK 126_ NTEVL 131_ VWEEC 136_ VANSA 141_ VILQN 146_ NEFGT 151_ IIDWA 156_ PRGQF 161_ YHNCS 166_ GQTQS 171_ CPSAQ 176_ VSPAV 181_ DSDLT 186_ ESLDK 191_ HKHKK 196_ LQSFY 201_ PWEWG 206_ EKGIS 211_ TPRPK 216_ IISPV 221_ SGPEH 226_ PELWR 231_ LTVAS 236_ HHIRI 241_ WSGNQ 246_ TLETR 251_ DRKPF 256_ YTVDL 261_ NSSLT 266_ LPLQS 271_ CVKPP 276_ YMLVV 281_ GNIVI 286_ KPDSQ 291_ TITCE 296_ NCRLL 301_ TCIDS 306_ TFNWQ 311_ HRILL 316_ VRARE 321_ GVWIL 326_ VSMDR 331_ PWEAS 336_ PSVHI 341_ LTEVL 346_ KGVLN 351_ RSKRF 356_ IFTLI 361_ AVIMG 366_ LIAVT 371_ ATGAV 376_ AGVAL 381_ HSSVQ 386_ SVNFV 391_ NDWQK 396_ NSTRL 401_ WNSQS 406_ SIDQK 411_ LANQI 416_ NDLRQ 421_ TVIWM 426_ GDRLM 431_ SLEHR 436_ FQLQC 441_ DWNTS 446_ DFCIT 451_ PQIYN 456_ ESEHH 461_ WDMVR 466_ HHLQG 471_ REDNL 476_ TLDIS 481_ KLKEQ 486_ IFEAS 491_ KAHLN 496_ LVPGT 501_ EAIAG 506_ VADGL 511_ ANLNP 516_ VTWVK 521_ TIGST 526_ TIINL 531_ ILILV 536_ CLFCL 541_ LLVCR 546_ CTQQL 551_ RRDSD 556_ HRERA 561_ MMTMA 566_ VLSKR 571_ KGGNV 576_ GKSKR 581_DQIVT
1: Retroviral envelope proteins mediate receptor recognition and membrane fusion during early infection. Endogenous envelope proteins may have kept, lost or modified their original function during evolution
2: SU mediates receptor recognition
3: TM anchors the envelope heterodimer to the viral membrane through one transmembrane domain. The other hydrophobic domain, called fusion peptide, mediates fusion of the viral membrane with the target cell membrane (By similarity)