>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=97.79 E-value=0.0017 Score=43.40 Aligned_cols=91 Identities=19% Similarity=0.231 Sum_probs=50.1 Q ss_pred EEEEEECCCCCHHHHHHHH---HCCCCCCCCCC--CCCCCCCCEEEEECCCHHHHHHHHH---CCCCEEEEEEEEEEECC Q ss_conf 4867528887888999987---40489873666--8674488337997685558777642---18650233579998512 Q gi|254780226|r 4 KCGIIGLPNVGKSTLFNAL---TRTASAQAANY--PFCTIEPNSGEVAVPDPRMHKLAEI---AESKDLVPTRMSFVDIA 75 (367) Q Consensus 4 kiGlvG~pn~GKST~f~al---T~~~~~~~~~y--pFtTi~pn~g~~~v~d~~~~~l~~~---~~~~~~~p~~i~~iDva 75 (367) T Consensus 1 Niai~gH~~~GKTtL~e~lL~~~g-~i~r~G~v~~g~t~~D~~------~eE~-~r~isi~~~~~~~~~~~~~~n~iDtP 72 (237) T cd04168 1 NIGILAHVDAGKTTLTESLLYTSG-AIRKLGSVDKGTTRTDTM------ELER-QRGITIFSAVASFQWEDTKVNLIDTP 72 (237) T ss_pred CEEEECCCCCCHHHHHHHHHHHCC-HHHHCCCEECCCCCCCCH------HHHH-HHCCEEEEEEEEEEECCEEEEEEECC T ss_conf 989993899899999999999657-122266330683037854------9989-84870310589999899879998898 Q ss_pred CCCCCCCCCCCCHHHHHHHHHCCCEEEEEECCCC Q ss_conf 2354322246632899998730374788501234 Q gi|254780226|r 76 GLVRGASKGEGLGNQFLAHIREVDAIIHVLRCFK 109 (367) Q Consensus 76 GLv~gA~~G~GlGN~FL~~ir~aDalihVVdaf~ 109 (367) T Consensus 73 G~~dF~~-------e~~~al~~~D~av~Vv~a~~ 99 (237) T cd04168 73 GHMDFIA-------EVERSLSVLDGAILVISAVE 99 (237) T ss_pred CCHHHHH-------HHHHHHHHCCCEEEEEECCC T ss_conf 8465666-------89889763481699996588

HHsearch alignment for GI: 254780226 and conserved domain: cd04168