Acetylcholine receptor subunit beta
1_MTPGA 6_ LLMLL 11_ GALGA 16_ PLAPG 21_ VRGSE 26_ AEGRL 31_ REKLF 36_ SGYDS 41_ SVRPA 46_ REVGD 51_ RVRVS 56_ VGLIL 61_ AQLIS 66_ LNEKD 71_ EEMST 76_ KVYLD 81_ LEWTD 86_ YRLSW 91_ DPAEH 96_ DGIDS 101_ LRITA 106_ ESVWL 111_ PDVVL 116_ LNNND 121_ GNFDV 126_ ALDIS 131_ VVVSS 136_ DGSVR 141_ WQPPG 146_ IYRSS 151_ CSIQV 156_ TYFPF 161_ DWQNC 166_ TMVFS 171_ SYSYD 176_ SSEVS 181_ LQTGL 186_ GPDGQ 191_ GHQEI 196_ HIHEG 201_ TFIEN 206_ GQWEI 211_ IHKPS 216_ RLIQP 221_ PGDPR 226_ GGREG 231_ QRQEV 236_ IFYLI 241_ IRRKP 246_ LFYLV 251_ NVIAP 256_ CILIT 261_ LLAIF 266_ VFYLP 271_ PDAGE 276_ KMGLS 281_ IFALL 286_ TLTVF 291_ LLLLA 296_ DKVPE 301_ TSLSV 306_ PIIIK 311_ YLMFT 316_ MVLVT 321_ FSVIL 326_ SVVVL 331_ NLHHR 336_ SPHTH 341_ QMPLW 346_ VRQIF 351_ IHKLP 356_ LYLRL 361_ KRPKP 366_ ERDLM 371_ PEPPH 376_ CSSPG 381_ SGWGR 386_ GTDEY 391_ FIRKP 396_ PSDFL 401_ FPKPN 406_ RFQPE 411_ LSAPD 416_ LRRFI 421_ DGPNR 426_ AVALL 431_ PELRE 436_ VVSSI 441_ SYIAR 446_ QLQEQ 451_ EDHDA 456_ LKEDW 461_ QFVAM 466_ VVDRL 471_ FLWTF 476_ IIFTS 481_ VGTLV 486_ IFLDA 491_ TYHLP 496_PPDPF
1: After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane