HHsearch alignment for GI: 254780582 and conserved domain: TIGR00740
>TIGR00740 TIGR00740 methyltransferase, putative; InterPro: IPR005271 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 . The proteins of this family are restricted to the Proteobacteria, sharing consistent length, full-length homology, and on average better than 35 0dentity. It is reasonable to predict equivalent function within this subfamily. .
Probab=97.51 E-value=0.00076 Score=42.00 Aligned_cols=124 Identities=12% Similarity=0.109 Sum_probs=81.8
Q ss_pred CCCCCEEEEECCCCCHHHHHHHCC-----CCEEEEEECHHHHHHHHHC-------CCCCEEEECHHHCCCCCCCCCCHHH
Q ss_conf 048975999653881113553123-----8748873058999832311-------6862365333656775472020022
Q gi|254780582|r 34 DVTGCRLLGLGYAIPFFSCFHGKV-----ERTLAFMPAGQGATNWPDQ-------YFSSTALVSEGNLPLADSSVDCVLM 101 (242)
Q Consensus 34 ~~~g~~vLdiGcg~g~~~~~~~~~-----~~~~~~~~~~~~~~~~~~~-------~~~~~~~~d~~~LPf~~~sfD~Vi~ 101 (242)
T Consensus 59 slp~~~vYDLGCS~G~~~l~~~R~I~~~~~~~igIDNS~pM~~~~~~~~~~y~~~~Pv~~~~~D~~~v~~~~AS--~~~L 136 (247)
T TIGR00740 59 SLPKPLVYDLGCSTGAATLSLRRNIQQDNIKIIGIDNSMPMLERCREHIKAYKNAIPVEVLCMDIREVEIKNAS--MVVL 136 (247)
T ss_pred CCCCCCEEECCCCHHHHHHHHHHCCCCCCEEEEEECCCHHHHHHHHHHHHHHCCCCCEEEEHHHHHHHHHHHHH--HHHH
T ss_conf 16887412233432357766530468785379884188889999999998742478823201024566665546--8878
Q ss_pred HHHHHHHC--CHHHHHHHHHHHCCCCCEEEEEECCCCCC--HH--HHH-HCCCCCCCCCCHHHHH
Q ss_conf 02477522--99999999998469998899973387740--34--565-3276656557888999
Q gi|254780582|r 102 VHYLEFAE--DPFLMLHEIWRVLTSGGRMIVVVPNKRGM--WA--RME-HTPFGSGQPYSWYQMI 159 (242)
Q Consensus 102 ~h~LE~~~--dp~~~L~Ei~RvLkPgG~lii~~~n~~s~--w~--~~~-~~~~~~~r~~~~~~l~ 159 (242)
T Consensus 137 ~F~LQFl~P~~R~~LL~KIY~~L~~nGvL~lsEK~~~ED~~~~~~li~l~~~fK~~~GYS~~Ei~ 201 (247)
T TIGR00740 137 NFTLQFLRPEEREALLKKIYNGLNPNGVLVLSEKFMFEDRKLDKLLIELHHLFKRANGYSELEIS 201 (247)
T ss_pred HHHHHCCCCHHHHHHHHHHHHHCCCCCEEEEECCHHHHHHHHHHHHHHHHHHHHHHCCCCHHHHH
T ss_conf 87760478234799999987410778668863201366789999999999998741587234688