HHsearch alignment for GI: 254781094 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=97.92 E-value=0.00047 Score=46.85 Aligned_cols=194 Identities=18% Similarity=0.197 Sum_probs=132.5
Q ss_pred HHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCHHHHHHH--HHHHHHHHHHHHHHHHHCCCCH-HHHHHH----
Q ss_conf 876510567687769688887434468999837997887896303--6499999999999876338887-899885----
Q gi|254781094|r 487 INFWAINEKPSGSKDPYALRRATLGIIRIILENKIDIPLSQFIED--QNLILFFHDRLKLYLHDRDIRH-DLIEAI---- 559 (702)
Q Consensus 487 ~g~f~ig~~PTGS~DPfaLRR~a~GiirIl~e~~l~l~l~~li~~--~~l~~Fi~~Rl~~~L~e~G~~~-DiI~AV---- 559 (702)
T Consensus 383 L~~~~f~~v~~~~GKkmkTR~G------------~~i~ld~ll~e~~~RA~~~~~~~~~~~~~--~e~~e~~a~~vG~gA 448 (600)
T TIGR00456 383 LEHLEFGMVPLGSGKKMKTRRG------------NVISLDNLLDEASKRAGNVITKRNTDLEQ--DEAEEKVADAVGIGA 448 (600)
T ss_pred EEEEEEEEEECCCCCCCCCCCC------------CCEEHHHHHHHHHHHHHHHHHHHHCCCCC--CCHHHHHHHHHHHHH
T ss_conf 6899876432578885434556------------60223446899999999999611013522--203789999973679
Q ss_pred -----HHCCCCCHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHH-HHHHCCCCCCCCCCHHHHCCHHHHHHHHHHHH
Q ss_conf -----416899989999999999998719513889999999999855-65312467777738568359899999999999
Q gi|254781094|r 560 -----LRPENDNLLTIVDLIKHLNEFFSSAKGEKFLLSAKRIFQILA-IEEKKNREISLEISPQYLLLEAEKRLYAVISD 633 (702)
Q Consensus 560 -----l~~~~~~~~~i~~r~~aL~~f~~~~~~~~l~~a~KRv~NIL~-~~~k~~~~~~~~vd~~Lf~~~~Ek~L~~~~~~ 633 (702)
T Consensus 449 vry~~l~~~~~~~~~Fd~d~~~L~f--~~n~~pY~QYAhaR~~Silr~~~~~~-~~~~~~~~~~~~~~~~E~~L~~~L~~ 525 (600)
T TIGR00456 449 VRYADLSKNRETHYVFDWDTAMLSF--EGNTAPYIQYAHARICSILRKKAEID-GEKLIADDFLLLKEEKEKELLKLLLQ 525 (600)
T ss_pred HHHHHHHHCCCCCCEEECCCHHHCC--CCCCCCHHHHHHHHHHHHHHHHCCCC-HHHHHHHHCCCCCCHHHHHHHHHHHH
T ss_conf 9999997278988155012011115--78874325888999999876310233-13455320003688889999999856
Q ss_pred HHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHCCCCCCCC-CHHHHHHHHHHHHHHHHHHHHHCC
Q ss_conf 9999999850253899999998532788875102703688-689999999999999999986068
Q gi|254781094|r 634 FGTHIQESMDHKRYHQIGDLLHSICEPIEIFFDQVLVNVD-DREVRDNRLSLLQYIKNIILIVIN 697 (702)
Q Consensus 634 ~~~~i~~~l~~~dy~~~L~~L~~L~~~Id~FFDnVmVm~e-D~~IR~NRL~LL~~i~~~f~~iaD 697 (702)
T Consensus 526 fp~~~~~~~~~~~p~~l~~Yly~LA~~F~sfY~~~~v~~~~~~~~~~~RL~L~~~~~~~L~n~L~ 590 (600)
T TIGR00456 526 FPEVIEEAAEEREPHVLTNYLYELAKLFSSFYKACPVLDAENEELAKARLALLKATRQTLKNGLE 590 (600)
T ss_pred HHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf 48999999985471888999999977642366417788986266899999999999999999887