HHsearch alignment for GI: 254780322 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=97.65 E-value=5.8e-05 Score=48.26 Aligned_cols=82 Identities=20% Similarity=0.197 Sum_probs=57.0
Q ss_pred HHHHHHHHHHHHCCCCCCCEEEECCCCCHHHHHHHHHCCCCE-EEEECCHHHHHHHHH-----------HCCCCCHHHHC
Q ss_conf 999999978986368987099985998589999986269708-997200113577531-----------10012001101
Q gi|254780322|r 31 RVAKEIAFRLNMINQTFENALELHGITGIVGYTCMETKKIHR-MIRAEISTEFSTLKR-----------EVISCPLEEIP 98 (273)
Q Consensus 31 ~~a~~l~~~l~~~~~~~~~vLdlGcGtG~~~~~l~~~~~~~~-v~~~D~s~~~~~~~~-----------~~~~~d~e~l~ 98 (273)
T Consensus 16 ~~~~~Iv~~~~~--~~~~~vlEIGPG~G~LT~~Ll~~~~--~~v~aiEiD~~l~~~L~~~~~~~~~~~~~~i~~Dalk~~ 91 (277)
T TIGR00755 16 SVIQKIVEAANV--LENDVVLEIGPGLGALTEPLLKRAK--KLVTAIEIDPRLAEILRKLLSEKLYENLEVIEGDALKVD 91 (277)
T ss_pred HHHHHHHHHHCC--CCCCEEEEECCCCHHHHHHHHHHCC--CEEEEEEECHHHHHHHHHHCCCCCCCCEEEEECCEEEEC
T ss_conf 899999997437--8997799973882078999998259--848999726789999875215433242578714445412
Q ss_pred CC-CCCCC-----HHHHHHHHHCC
Q ss_conf 43-33522-----26666674222
Q gi|254780322|r 99 SI-SQSVD-----LILSPLNLHII 116 (273)
Q Consensus 99 ~~-~~sfD-----li~s~~~l~w~ 116 (273)
T Consensus 92 ~~~~~~~~~~~~~~vv~NLPY~Is 115 (277)
T TIGR00755 92 LNSLEDFPKEDKLKVVSNLPYNIS 115 (277)
T ss_pred CCHHHHCCCCCCCEEEEECCCCHH
T ss_conf 320433167898579850774324