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