Endogenous retrovirus group FC1 member 1 Env polyprotein (Envelope polyprotein) (Fc2deltaenv) (HERV-F(c)2_7q36.2 provirus ancestral Env polyprotein) [Includes: Surface protein (SU); Truncated transmembrane protein (TM)]
1_MNSPC 6_ DRLQQ 11_ FIQVL 16_ LEESW 21_ SFPSF 26_ ANTLH 31_ WPENL 36_ LSYID 41_ ELVWQ 46_ GSLQN 51_ FHQHE 56_ VRFDK 61_ PPLRL 66_ PLTGF 71_ SSLTE 76_ NWSSR 81_ QAVSS 86_ RLVAT 91_ AASPP 96_ AGCQA 101_ PIAFL 106_ GLKFS 111_ SLGPA 116_ RKNPA 121_ LCFLY 126_ DQSNS 131_ KCNTS 136_ WVKEN 141_ VGCPW 146_ HWCNI 151_ HEALI 156_ RTEKG 161_ SDPMF 166_ YVNTS 171_ TGGRD 176_ GFNGF 181_ NLQIS 186_ DPWDP 191_ RWASG 196_ VDGGL 201_ YEHKT 206_ FMYPV 211_ AKIRI 216_ ARTLK 221_ TTVTG 226_ LSDLA 231_ SSIQS 236_ AEKEL 241_ TSQLQ 246_ PAADQ 251_ AKSSR 256_ FSWLT 261_ LISEG 266_ AQLLQ 271_ STGVQ 276_ NLSHC 281_ FLCAA 286_ LRRPP 291_ LVAVP 296_ LPTPF 301_ NYTIN 306_ SSTPI 311_ PPVPK 316_ GQVPL 321_ FSDPI 326_ RHKFP 331_ FCYST 336_ PNASW 341_ CNQTR 346_ MLTST 351_ PAPPR 356_ GYFWC 361_ NSTLT 366_ KVLNS 371_ TGNHT 376_ LCLPI 381_ SLIPG 386_ LTLYS 391_ QDELS 396_ HLLAW 401_ TEPRP 406_ QNKSK 411_ WAIFL 416_ PLVLG 421_ ISLAS 426_ SLVAS 431_ GLGKG 436_ ALTHS 441_ IQTSQ 446_ DLSTH 451_ LQLAI 456_ EASAE 461_ SLDSL 466_ QRQIT 471_ TVAQV 476_ AAQNR 481_ QALDL 486_ LMAEK 491_ GRTCL 496_ FLQEE 501_ CCYYL 506_ NESGV 511_ VENSL 516_ QTLKK 521_KKSSK
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. This endogenous envelope protein has lost its original fusogenic properties