Guanine nucleotide-binding protein subunit beta-4 (Transducin beta chain 4)
1_MSELE 6_ QLRQE 11_ AEQLR 16_ NQIQD 21_ ARKAC 26_ NDATL 31_ VQITS 36_ NMDSV 41_ GRIQM 46_ RTRRT 51_ LRGHL 56_ AKIYA 61_ MHWGY 66_ DSRLL 71_ VSASQ 76_ DGKLI 81_ IWDSY 86_ TTNKM 91_ HAIPL 96_ RSSWV 101_ MTCAY 106_ APSGN 111_ YVACG 116_ GLDNI 121_ CSIYN 126_ LKTRE 131_ GNVRV 136_ SRELP 141_ GHTGY 146_ LSCCR 151_ FLDDS 156_ QIVTS 161_ SGDTT 166_ CALWD 171_ IETAQ 176_ QTTTF 181_ TGHSG 186_ DVMSL 191_ SLSPD 196_ MRTFV 201_ SGACD 206_ ASSKL 211_ WDIRD 216_ GMCRQ 221_ SFTGH 226_ VSDIN 231_ AVSFF 236_ PNGYA 241_ FATGS 246_ DDATC 251_ RLFDL 256_ RADQE 261_ LLLYS 266_ HDNII 271_ CGITS 276_ VAFSK 281_ SGRLL 286_ LAGYD 291_ DFNCN 296_ VWDTL 301_ KGDRA 306_ GVLAG 311_ HDNRV 316_ SCLGV 321_ TDDGM 326_ AVATG 331_SWDSF
1: Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction