HHsearch alignment for GI: 255764511 and conserved domain: TIGR00755
>TIGR00755 ksgA dimethyladenosine transferase; InterPro: IPR011530 This family of proteins represent the rRNA adenine dimethylases (e.g. KsgA). The bacterial enzyme KsgA catalyzes the transfer of a total of four methyl groups from S-adenosyl-l-methionine (S-AdoMet) to two adjacent adenosine bases in 16S rRNA. This enzyme and the resulting modified adenosine bases appear to be conserved in all species of eubacteria, eukaryotes, and archaea, and in eukaryotic organelles. Bacterial resistance to the aminoglycoside antibiotic kasugamycin involves inactivation of KsgA and resulting loss of the dimethylations, with modest consequences to the overall fitness of the organism. In contrast, the yeast ortholog, Dim1, is essential. In yeast, and presumably in other eukaryotes, the enzyme performs a vital role in pre-rRNA processing in addition to its methylating activity. The best conserved region in these enzymes is located in the N-terminal section and corresponds to a region that is probably involved in S-adenosyl methionine (SAM) binding. The crystal structure of KsgA from Escherichia coli has been solved to a resolution of 2.1A. It bears a strong similarity to the crystal structure of ErmC' from Bacillus stearothermophilus and a lesser similarity to the yeast mitochondrial transcription factor, sc-mtTFB .; GO: 0016433 rRNA (adenine) methyltransferase activity, 0006364 rRNA processing.
Probab=94.14 E-value=0.3 Score=28.71 Aligned_cols=94 Identities=18% Similarity=0.215 Sum_probs=75.1
Q ss_pred CCCCHHHHHHHHHCCCCCCEEEECCCCCCHHHHHHHHHCCE-EEEECCCHHHHHHHHHHHH--HCCCCEEEECCCHHHHH
Q ss_conf 33400986886608388888998376882889999974890-9998099899999999852--14885277113278898
Q gi|255764511|r 20 HVPVLLEKVIALLNPAPGKVILDATFGAGGYSRSFCKMGSN-VIALDRDPFAVSCGQETMR--DYKEQFSLFQATFSQLQ 96 (341)
Q Consensus 20 H~PVll~Evl~~l~~~~~g~~iD~TlG~GGHS~~iL~~~~~-liaiDrD~~ai~~a~~~l~--~~~~r~~~~~~~F~~i~ 96 (341)
T Consensus 13 ~D~~~~~~Iv~~~~~~~~~~vlEIGPG~G~LT~~Ll~~~~~~v~aiEiD~~l~~~L~~~~~~~~-~~~~~~i~~Dalk~~ 91 (277)
T TIGR00755 13 IDESVIQKIVEAANVLENDVVLEIGPGLGALTEPLLKRAKKLVTAIEIDPRLAEILRKLLSEKL-YENLEVIEGDALKVD 91 (277)
T ss_pred ECHHHHHHHHHHHCCCCCCEEEEECCCCHHHHHHHHHHCCCEEEEEEECHHHHHHHHHHCCCCC-CCCEEEEECCEEEEC
T ss_conf 0878999999974378997799973882078999998259848999726789999875215433-242578714445412
Q ss_pred HH-HHHC-CCC--EEEEECCCH
Q ss_conf 76-5312-332--478622520
Q gi|255764511|r 97 DY-VPDK-GVD--GVVFDLGVS 114 (341)
Q Consensus 97 ~~-l~~~-~vd--gIl~DLGvS 114 (341)
T Consensus 92 ~~~~~~~~~~~~~~vv~NLPY~ 113 (277)
T TIGR00755 92 LNSLEDFPKEDKLKVVSNLPYN 113 (277)
T ss_pred CCHHHHCCCCCCCEEEEECCCC
T ss_conf 3204331678985798507743