HHsearch alignment for GI: 254780445 and conserved domain: TIGR00456
>TIGR00456 argS arginyl-tRNA synthetase; InterPro: IPR001278 The aminoacyl-tRNA synthetases (6.1.1. from EC) catalyse the attachment of an amino acid to its cognate transfer RNA molecule in a highly specific two-step reaction. These proteins differ widely in size and oligomeric state, and have limited sequence homology . The 20 aminoacyl-tRNA synthetases are divided into two classes, I and II. Class I aminoacyl-tRNA synthetases contain a characteristic Rossman fold catalytic domain and are mostly monomeric . Class II aminoacyl-tRNA synthetases share an anti-parallel beta-sheet fold flanked by alpha-helices , and are mostly dimeric or multimeric, containing at least three conserved regions , , . However, tRNA binding involves an alpha-helical structure that is conserved between class I and class II synthetases. In reactions catalysed by the class I aminoacyl-tRNA synthetases, the aminoacyl group is coupled to the 2'-hydroxyl of the tRNA, while, in class II reactions, the 3'-hydroxyl site is preferred. The synthetases specific for arginine, cysteine, glutamic acid, glutamine, isoleucine, leucine, methionine, tyrosine, tryptophan and valine belong to class I synthetases; these synthetases are further divided into three subclasses, a, b and c, according to sequence homology. The synthetases specific for alanine, asparagine, aspartic acid, glycine, histidine, lysine, phenylalanine, proline, serine, and threonine belong to class-II synthetases . Arginyl-tRNA synthetase (6.1.1.19 from EC) has been crystallized and preliminary X-ray crystallographic analysis of yeast arginyl-tRNA synthetase-yeast tRNAArg complexes is available . ; GO: 0000166 nucleotide binding, 0004814 arginine-tRNA ligase activity, 0005524 ATP binding, 0006412 translation, 0006420 arginyl-tRNA aminoacylation, 0005737 cytoplasm.
Probab=98.76 E-value=3.5e-08 Score=74.73 Aligned_cols=133 Identities=14% Similarity=0.153 Sum_probs=84.3
Q ss_pred CCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCC-------------------CCCCCCC--------CCHHH-H-HHHH
Q ss_conf 2558897621577856687899876708982678-------------------8882444--------20899-9-9999
Q gi|254780445|r 63 PYANGHIHIGHALNKILKDVIVRSFQMRNFNACF-------------------VPGWDCH--------GLPIE-W-KVEN 113 (963)
Q Consensus 63 Py~nG~lH~GH~~n~~~kDi~~Ry~rm~G~~Vl~-------------------~~GwD~h--------GLPiE-~-~vek 113 (963)
T Consensus 127 aNp~gplH~GHlR~aiIGD~L~r~l~~~G~~V~r~yyVND~G~Q~~~l~~~~~~~~~e~~~~~~~~~~~~~~~~y~~~~k 206 (600)
T TIGR00456 127 ANPAGPLHIGHLRNAIIGDSLARILEFLGYDVIREYYVNDWGRQIGLLVLGVEKFGNEKETAVKKPDHGLEGFDYVEINK 206 (600)
T ss_pred CCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCEEEEEEECCHHHHHHHHHHHHHHHCCHHHCCCCCCCCCHHHHHHHHHHH
T ss_conf 88897611000025777889999998759707985200542899999999999851213202668742012358889887
Q ss_pred HHHHCCC-----CHH----------HCCH--HHHHHHHHHHHHHHHHHHHHHHHHCCEEEE---CCCCEECCCHHHHHHH
Q ss_conf 8765599-----833----------4899--999999999999999999999997060776---3698115776798999
Q gi|254780445|r 114 EYLAKGK-----KKD----------DIPV--NEFRQACRDSASAWVKIQSKEFQRLGIVGD---FENPYTTMTRESEAQI 173 (963)
Q Consensus 114 ~l~~~~~-----~~~----------~~~~--~~~~~~c~~~a~~~i~~~~~~~~rlG~~~D---w~~~y~T~dp~y~~~~ 173 (963)
T Consensus 207 ~~~e~~~~~~~~s~~~~~~~~~~~~e~gdnNe~~~~~w~~~~~~~l~~~k~tl~~lni~~D~~~~E~E~~-----~~~~~ 281 (600)
T TIGR00456 207 RLEENEEPINKQSLEEEARELFVKLESGDNNEKTIKLWKRLVEYALEGIKETLKRLNIHFDEFVWEGESV-----KNGKV 281 (600)
T ss_pred HHHHCCCCCCCCCHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHCCCEEEEEECCEEE-----ECCCH
T ss_conf 8861777653335457899999974324442899999999999999999999986296500588540457-----74860
Q ss_pred HHHHHHHH-HCCCEECC-CCEEEECCCCC
Q ss_conf 99999999-87961103-43022057435
Q gi|254780445|r 174 ASELLKIA-ESDQIYRG-IKPIMWSIAEQ 200 (963)
Q Consensus 174 ~~~F~~l~-~kGliyr~-~~pV~w~p~~~ 200 (963)
T Consensus 282 ~~v~e~L~k~~gl~~ed~gA~~~~L~~f~ 310 (600)
T TIGR00456 282 PKVLEDLKKEKGLVVEDDGALWLDLTEFG 310 (600)
T ss_pred HHHHHHHHHHCCCEEECCCEEEEECCCCC
T ss_conf 78999863103780674734899757766