HHsearch alignment for GI: 254780872 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=98.30 E-value=1.1e-06 Score=62.07 Aligned_cols=92 Identities=18% Similarity=0.239 Sum_probs=64.4
Q ss_pred HHHHHHHCCCCCCCCCCHHHCCEEEECCCHHHHHHHHHHCCCC-EEEECCHHHHHHHHHHHHHC-CCCCCCCCCCCCCCC
Q ss_conf 9998865187644458800162888569856999999731981-69952135677888865310-112111122100123
Q gi|254780872|r 48 QDKIMQHFQCKSDDTHPFKGLRILDLGCGGGLLSEPMAQMGAT-VTGIDPSTKNIAIAKNHANM-KNINIDYRVSCAEEI 125 (254)
Q Consensus 48 ~~~i~~~~~~~~~~~~~l~g~~VLDiGCG~G~~s~~la~~g~~-V~giD~S~~~i~~Ak~~a~~-~~~~i~~~~~~~~~l 125 (254)
T Consensus 18 ~~~Iv~~~~~-------~~~~~vlEIGPG~G~LT~~Ll~~~~~~v~aiEiD~~l~~~L~~~~~~~~~~~~~~i~~Dalk~ 90 (277)
T TIGR00755 18 IQKIVEAANV-------LENDVVLEIGPGLGALTEPLLKRAKKLVTAIEIDPRLAEILRKLLSEKLYENLEVIEGDALKV 90 (277)
T ss_pred HHHHHHHHCC-------CCCCEEEEECCCCHHHHHHHHHHCCCEEEEEEECHHHHHHHHHHCCCCCCCCEEEEECCEEEE
T ss_conf 9999997437-------899779997388207899999825984899972678999987521543324257871444541
Q ss_pred CCC-CCCHH-----HHEECCCHHCCCCH
Q ss_conf 211-15301-----30012431026888
Q gi|254780872|r 126 AET-DEKFD-----IILNMEVIEHVDNI 147 (254)
Q Consensus 126 ~~~-~~~FD-----~V~~~~vleHv~d~ 147 (254)
T Consensus 91 ~~~~~~~~~~~~~~~vv~-NLPY~Issp 117 (277)
T TIGR00755 91 DLNSLEDFPKEDKLKVVS-NLPYNISSP 117 (277)
T ss_pred CCCHHHHCCCCCCCEEEE-ECCCCHHHH
T ss_conf 232043316789857985-077432489