RPSBLAST alignment for GI: 254780264 and conserved domain: cd01680

>gnl|CDD|58275 cd01680, EFG_like_IV, Elongation Factor G-like domain IV. This family includes the translational elongation factor termed EF-2 (for Archaea and Eukarya) and EF-G (for Bacteria), ribosomal protection proteins that mediate tetracycline resistance and, an evolutionarily conserved U5 snRNP-specific protein (U5-116kD). In complex with GTP, EF-G/EF-2 promotes the translocation step of translation. During translocation the peptidyl-tRNA is moved from the A site to the P site of the small subunit of ribosome and the mRNA is shifted one codon relative to the ribosome. It has been shown that EF-G/EF-2_IV domain mimics the shape of anticodon arm of the tRNA in the structurally homologous ternary complex of Petra, EF-Tu (another transcriptional elongation factor) and GTP analog. The tip portion of this domain is found in a position that overlaps the anticodon arm of the A-site tRNA, implying that EF-G/EF-2 displaces the A-site tRNA to the P-site by physical interaction with the anticodon arm.. Length = 116
 Score = 87.6 bits (217), Expect = 1e-17
 Identities = 39/116 (33%), Positives = 57/116 (49%)

Query: 487 YRESVTKSCVHDYIHKKQSGGAGQFAKVKIAFEPNPDGDDFVFESKIVGGAIPKEYIPGV 546
           YRE++ KS       +++ GG  QF +V +  EP   G        +    +P E    V
Sbjct: 1   YRETIRKSVEATGEFERELGGKPQFGEVTLRVEPLERGSGVRVVDPVDEELLPAELKEAV 60

Query: 547 RKGIESMLSSGPLAGFPMLGMKVTLLDGDYHDVDSSVLAFEIAARACFREAASKMG 602
            +GI    +SGPL G+P+  ++VT+LD  YH+  S+   F  AA   F  AA K G
Sbjct: 61  EEGIRDACASGPLTGYPLTDVRVTVLDVPYHEGVSTEAGFRAAAGRAFESAAQKAG 116