HHsearch alignment for GI: 254780624 and conserved domain: TIGR00452

>TIGR00452 TIGR00452 methyltransferase, putative; InterPro: IPR010017 Methyl transfer from the ubiquitous S-adenosyl-L-methionine (AdoMet) to either nitrogen, oxygen or carbon atoms is frequently employed in diverse organisms ranging from bacteria to plants and mammals. The reaction is catalyzed by methyltransferases (Mtases) and modifies DNA, RNA, proteins and small molecules, such as catechol for regulatory purposes. The various aspects of the role of DNA methylation in prokaryotic restriction-modification systems and in a number of cellular processes in eukaryotes including gene regulation and differentiation is well documented. Three classes of DNA Mtases transfer the methyl group from AdoMet to the target base to form either N-6-methyladenine, or N-4-methylcytosine, or C-5- methylcytosine. In C-5-cytosine Mtases, ten conserved motifs are arranged in the same order . Motif I (a glycine-rich or closely related consensus sequence; FAGxGG in M.HhaI ), shared by other AdoMet-Mtases , is part of the cofactor binding site and motif IV (PCQ) is part of the catalytic site. In contrast, sequence comparison among N-6-adenine and N-4-cytosine Mtases indicated two of the conserved segments , although more conserved segments may be present. One of them corresponds to motif I in C-5-cytosine Mtases, and the other is named (D/N/S)PP(Y/F). Crystal structures are known for a number of Mtases , , , . The cofactor binding sites are almost identical and the essential catalytic amino acids coincide. The comparable protein folding and the existence of equivalent amino acids in similar secondary and tertiary positions indicate that many (if not all) AdoMet-Mtases have a common catalytic domain structure. This permits tertiary structure prediction of other DNA, RNA, protein, and small-molecule AdoMet-Mtases from their amino acid sequences . This is a set of proteobacterial proteins, which have homology in their central region to a large number of methyltransferases active on a variety of substrates. .
Probab=99.12  E-value=7.8e-11  Score=89.98  Aligned_cols=172  Identities=19%  Similarity=0.269  Sum_probs=112.8

Q ss_pred             CHHHHH-----HHHHHHHCCCCCCCCEEEECCHHHHHHHHHHHHHCCCCCEEEEECCCCCCCCCCCCCHHCCCCCCCCCC
Q ss_conf             017999-----999852064467997798602335577777664138863278721332222111100000112222222
Q gi|254780624|r   52 LHRFWK-----EAMVTNLNPRKSKDYRVLDVAGGTGDVAFRIAEASDNRSQIVVADINNEMLSVGRDRAFKENLQDCITF  126 (265)
Q Consensus        52 ~~r~Wr-----~~~i~~l~~~~~~~~~iLDiGcGTG~~~~~l~~~~~~~~~v~giD~s~~Ml~~a~~r~~~~~~~~~i~~  126 (265)
T Consensus       100 iD~EW~S~~KWDR~l~~~~pL~~--~~i~DVGC~~GY~~~~M~~~Gak--~~VG~DP~~L~~~QFE~~~~ll~~~~~~~l  175 (316)
T TIGR00452       100 IDSEWRSDIKWDRVLPHLSPLKG--RTILDVGCGSGYHLWRMLGEGAK--LLVGIDPTELFLCQFEAVRKLLDNDKRAIL  175 (316)
T ss_pred             ECCCCCCCCCHHHHCCCCCCCCC--CEEEEECCCCHHHHHHHHHCCCC--EEEECCHHHHHHHHHHHHHHHHCCCCEEEE
T ss_conf             50430666535543124665457--77898336870688977620782--787436578999999999987242355754


Q ss_pred             CCCCCCCCC-CCCCCCCCCEEEEEECCCHHHHHHHCCCCHHCCCCCEEEEEECCCCCCCHHHHHHHHHHHCHHHHHHHHH
Q ss_conf             222233345-7554467403664201321344320121000485211776305544551011234565311133210254
Q gi|254780624|r  127 IEANAETLP-FEANSFDACTLAFGIRNMPHITLVLQEIYRILKCGGRLLVLEFSEVQGPVFKKIYDMWSFKVIPQLGRFI  205 (265)
Q Consensus       127 ~~~da~~lp-~~d~sfD~V~~sf~l~~~~d~~~~l~e~~RvLKpGG~~~i~df~~p~~~~~~~~~~~y~~~iiP~~g~~~  205 (265)
T Consensus       176 ~~LGiE~l~~~~pnAFD~vFs~GVLYHRkSPLe~L~~L~~~L~~~GELVL~TL-viD~d~-----~---~~LvP~--~~Y  244 (316)
T TIGR00452       176 LPLGIEQLQELKPNAFDTVFSLGVLYHRKSPLEHLKQLKDQLVKKGELVLETL-VIDGDL-----N---TVLVPK--DRY  244 (316)
T ss_pred             ECCCHHHHHHCCCCCCEEEEECCHHHCCCCCHHHHHHHHHHHHHCCCEEEEEE-EECCCC-----C---EEECCC--CCC
T ss_conf             03670222320764120312202021155708999999999875793586534-660776-----7---586475--444


Q ss_pred             CCCHHHHHHHHHHHHHCCCHHHHHHHHHHCCCCEEEEEECC
Q ss_conf             28876865789999968998999999997599537999855
Q gi|254780624|r  206 AGDEEPYQYLIESIRRFPNQQDFAAVISAAGFSNVSFTNYT  246 (265)
Q Consensus       206 ~~~~~~Y~yL~~Si~~f~~~~el~~~l~~aGF~~v~~~~~~  246 (265)
T Consensus       245 AkMkNVY--FI------PSv~aL~~Wl~kvGF~~~~i~~V~  277 (316)
T TIGR00452       245 AKMKNVY--FI------PSVSALKNWLEKVGFENVRILDVL  277 (316)
T ss_pred             CCEEEEE--EH------HHHHHHHHHHHHCCCCEEEEEEEE
T ss_conf             2200014--20------238999888874495314787510