HHsearch alignment for GI: 254780640 and conserved domain: cd01886

>cd01886 EF-G 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 conta
Probab=95.64  E-value=0.031  Score=30.93  Aligned_cols=29  Identities=17%  Similarity=0.186  Sum_probs=22.3

Q ss_pred             EEEEECCCCCHHHHHHHHHHHHCCCCCCCC
Q ss_conf             999907986578999999998579775643
Q gi|254780640|r   53 TIVNGQNGYGKSSLSEAIEWLFYGYTQRRK   82 (110)
Q Consensus        53 ~~i~G~Ng~GKStil~ai~~~l~g~~~~~~   82 (110)
T Consensus         2 iai~gH~gaGKTtL~EalL~~-ag~i~r~G   30 (270)
T cd01886           2 IGIIAHIDAGKTTTTERILYY-TGRIHKIG   30 (270)
T ss_pred             EEEEECCCCCHHHHHHHHHHH-CCCCCCCC
T ss_conf             899968999988999999986-68735581