>cd04168 TetM_like Tet(M)-like subfamily. Tet(M), Tet(O), Tet(W), and OtrA are tetracycline resistance genes found in Gram-positive and Gram-negative bacteria. Tetracyclines inhibit protein synthesis by preventing aminoacyl-tRNA from binding to the ribosomal acceptor site. This subfamily contains tetracycline resistance proteins that function through ribosomal protection and are typically found on mobile genetic elements, such as transposons or plasmids, and are often conjugative. Ribosomal protection proteins are homologous to the elongation factors EF-Tu and EF-G. EF-G and Tet(M) compete for binding on the ribosomes. Tet(M) has a higher affinity than EF-G, suggesting these two proteins may have overlapping binding sites and that Tet(M) must be released before EF-G can bind. Tet(M) and Tet(O) have been shown to have ribosome-dependent GTPase activity. These proteins are part of the GTP translation factor family, which includes EF-G, EF-Tu, EF2, LepA, and SelB.

Probab=99.97 E-value=1.3e-30 Score=227.25 Aligned_cols=124 Identities=30% Similarity=0.427 Sum_probs=111.0 Q ss_pred EEEEECCCCCHHHHHHHHHHHHHHHCC------------------CCCCEECCCEEEEECCCCEEEEEECCCHHHHHHHH Q ss_conf 898623685044677788642221001------------------23100012149995178438888516615789998 Q gi|254780787|r 386 VTIMGHVDHGKTSLLDAIRKADVAKGE------------------IGGITQHIGAYQVAYQGKNITFLDTPGHAAFYEMR 447 (884) Q Consensus 386 v~v~ghvd~GKt~lld~~r~~~~~~~e------------------~ggitq~iga~~~~~~~~~~~~iDtPGh~~f~~~r 447 (884) T Consensus 2 iai~gH~~~GKTtL~e~lL~~~g~i~r~G~v~~g~t~~D~~~eE~~r~isi~~~~~~~~~~~~~~n~iDtPG~~dF~~e~ 81 (237) T cd04168 2 IGILAHVDAGKTTLTESLLYTSGAIRKLGSVDKGTTRTDTMELERQRGITIFSAVASFQWEDTKVNLIDTPGHMDFIAEV 81 (237) T ss_pred EEEECCCCCCHHHHHHHHHHHCCHHHHCCCEECCCCCCCCHHHHHHHCCEEEEEEEEEEECCEEEEEEECCCCHHHHHHH T ss_conf 89993899899999999999657122266330683037854998984870310589999899879998898846566689 Q ss_pred HHHHHCCCCEEEEEECCCCCCHHHHHHHHHHHHCCCCEEEECCCCCCCCCCCCHHHHHHHCC Q ss_conf 66642068059999836674023577789899709941561233124433200022100001 Q gi|254780787|r 448 ARGARVTDIAVLVLAADEEIMPQAIESINHAKAADVSIIVAINKIDKLGADPQKVRMSLLKH 509 (884) Q Consensus 448 ~rg~~~~d~~ilvv~~~~g~~~qt~e~~~~~~~~~~p~iva~nk~d~~~~~~~~~~~~~~~~ 509 (884) T Consensus 82 ~~al~~~D~av~Vv~a~~Gv~~~t~~~~~~~~~~~~P~iifiNKmDre~adf~~~l~~i~~~ 143 (237) T cd04168 82 ERSLSVLDGAILVISAVEGVQAQTRILWRLLRKLNIPTIIFVNKIDRAGADLEKVYQEIKEK 143 (237) T ss_pred HHHHHHCCCEEEEEECCCCCCCCHHHHHHHHHHCCCCEEEEEECCCCCCCCHHHHHHHHHHH T ss_conf 88976348169999658882234499999999859985998624457899999999999999

HHsearch alignment for GI: 254780787 and conserved domain: cd04168