RPSBLAST alignment for GI: 254780264 and conserved domain: cd04170
>gnl|CDD|133370 cd04170, EF-G_bact, Elongation factor G (EF-G) subfamily. Translocation is mediated by EF-G (also called translocase). The structure of EF-G closely resembles that of the complex between EF-Tu and tRNA. This is an example of molecular mimicry; a protein domain evolved so that it mimics the shape of a tRNA molecule. EF-G in the GTP form binds to the ribosome, primarily through the interaction of its EF-Tu-like domain with the 50S subunit. The binding of EF-G to the ribosome in this manner stimulates the GTPase activity of EF-G. On GTP hydrolysis, EF-G undergoes a conformational change that forces its arm deeper into the A site on the 30S subunit. To accommodate this domain, the peptidyl-tRNA in the A site moves to the P site, carrying the mRNA and the deacylated tRNA with it. The ribosome may be prepared for these rearrangements by the initial binding of EF-G as well. The dissociation of EF-G leaves the ribosome ready to accept the next aminoacyl-tRNA into the A site. This group contains only bacterial members. Length = 268
Score = 270 bits (692), Expect = 1e-72
Identities = 97/276 (35%), Positives = 164/276 (59%), Gaps = 8/276 (2%)
Query: 12 NFGIMAHIDAGKTTTTERILYYAGKSHKIGEVHDGSATMDWMEQEQERGITITSASTTVF 71
N ++ H +GKTT E +LY G ++G V DG+ D+ +E +R ++I+++ +
Sbjct: 1 NIALVGHSGSGKTTLAEALLYATGAIDRLGSVEDGTTVSDYDPEEIKRKMSISTSVAPLE 60
Query: 72 WPGRDGGQKKLTIIDTPGHVDFTMEVERSIRVTDGAIALLDSNAGVEPQTETVWRQADKY 131
W G K+ +IDTPG+ DF E ++R D A+ ++ + +GVE TE +W AD+
Sbjct: 61 WKG-----HKINLIDTPGYADFVGETRAALRAADAALVVVSAQSGVEVGTEKLWEFADEA 115
Query: 132 SVPRVIFCNKMDKMGADFYRSVEMISSRLGANPLVIQLPVGSESNFQGVIDLVEMKALLW 191
+PR+IF NKMD+ ADF +++ + G + +QLP+G +F+GV+DL+ KA ++
Sbjct: 116 GIPRIIFINKMDRERADFDKTLAALQEAFGRPVVPLQLPIGEGDDFKGVVDLLTEKAYIY 175
Query: 192 KNEDLGSSWDVVEIPEDMKDSANSYRDKMIESIVELDDSAMDSYLQGESFSSDRIRSLIR 251
G+ + +EIPE++K+ R++++E++ E DD M+ YL+G + + + + +R
Sbjct: 176 SP---GAPSEEIEIPEELKEEVAEAREELLEAVAETDDELMEKYLEGGELTEEELHAGLR 232
Query: 252 LGTISVKFFPVLCGSSFKNKGVQPLLDAVVDYLPSP 287
+ PVLCGS+ N GV+ LLDA+V LPSP
Sbjct: 233 RALRAGLLVPVLCGSALTNIGVRELLDALVHLLPSP 268