HHsearch alignment for GI: 254780573 and conserved domain: TIGR00396
>TIGR00396 leuS_bact leucyl-tRNA synthetase; InterPro: IPR002302 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 . Leucyl tRNA synthetase (6.1.1.4 from EC) is an alpha monomer that belongs to class Ia. There are two different families of leucyl-tRNA synthetases. This family includes the eubacterial and mitochondrial synthetases. The crystal structure of leucyl-tRNA synthetase from the hyperthermophile Thermus thermophilus has an overall architecture that is similar to that of isoleucyl-tRNA synthetase, except that the putative editing domain is inserted at a different position in the primary structure. This feature is unique to prokaryote-like leucyl-tRNA synthetases, as is the presence of a novel additional flexibly inserted domain . ; GO: 0000166 nucleotide binding, 0004823 leucine-tRNA ligase activity, 0005524 ATP binding, 0006412 translation, 0006429 leucyl-tRNA aminoacylation, 0005737 cytoplasm.
Probab=98.19 E-value=5.8e-06 Score=62.97 Aligned_cols=167 Identities=22% Similarity=0.284 Sum_probs=103.8
Q ss_pred CEE-ECCC-------CCCCC-CCCCHHHH---HHHHHCCCCEEEEEECCCCCCCCCHHHHH------HHHHHCC----CC
Q ss_conf 314-1467-------76676-43320477---77875298414874135666687513668------8886408----75
Q gi|254780573|r 202 PGW-ESPW-------GRGRP-GWHIECSA---MSSHYLGKVFDIHGGGLDLIFPHHENEIA------QSCCADR----IE 259 (461)
Q Consensus 202 ~~w-~spw-------G~GRP-GWHiECsa---m~~~~lg~~~DIH~GG~DL~FPHHENEiA------Qs~a~~~----~~ 259 (461)
T Consensus 525 dtf~~SsWYylRY~~p~~n~~FWPi~~~~d~e~~~~wl--PVD~YiGG~EHAiLHLLY~RF~hK~L~D~g~v~~PaGi~E 602 (916)
T TIGR00396 525 DTFIGSSWYYLRYLDPKNNTNFWPIDQPFDKEKAEYWL--PVDLYIGGIEHAILHLLYARFFHKFLYDLGLVSTPAGIKE 602 (916)
T ss_pred CCHHHHHHHHHHCCCCCCCCCCCCCCCCCCHHHHHHCC--CCCEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCC
T ss_conf 30577789998603500176668732130278897558--8441026268998998888999999974576158776657
Q ss_pred CCHHHEECCCEEE--------------------------------------------EEECCCCCCCCCCCCHHHHHCCC
Q ss_conf 3012100343257--------------------------------------------64202233233214089985025
Q gi|254780573|r 260 KTANIWIHNGFLN--------------------------------------------LEGRKMSKSNGNFITINELLETK 295 (461)
Q Consensus 260 ~~a~yWlH~G~l~--------------------------------------------i~geKMSKSlGN~iti~dlL~~~ 295 (461)
T Consensus 603 PFkK-L~~QGMVlg~~f~y~~~~g~~~W~~p~d~~~~~d~~~d~~~~~d~~~~~~~~~~~~KMSKSK~N~i~P~e~~--- 678 (916)
T TIGR00396 603 PFKK-LINQGMVLGDAFYYKKPNGKRIWVVPADELIERDEKGDIKKAKDKSGGELVVVGYEKMSKSKGNGIDPQEIV--- 678 (916)
T ss_pred HHHH-HHHCCEEECCCEEECCCCCCEEEEECCCCEEECCCCCCCCCCEECCCCCEEEEEEEEECCCCCCCCCCHHHH---
T ss_conf 1455-420000211613413899736776457516610466786542325888247887776202367988703897---
Q ss_pred CCCCCCCCHHHHHHHHH-CCCCCCCCCCCHHHHHHHHHHHHHCCCCCCCC----C----------CC--------CH---
Q ss_conf 33455777999999984-25664321145034687776432100001351----0----------05--------96---
Q gi|254780573|r 296 KFGGRSWPAPVIRLAML-MTHYREPIDFTVQRLTEAEILLSKWPQTSTSK----G----------II--------DP--- 349 (461)
Q Consensus 296 ~~~~k~y~p~viR~~lL-sshYRspLdfS~e~L~~A~~~l~kl~~~~~~~----~----------~~--------~~--- 349 (461)
T Consensus 679 ----~~yGADa~Rlf~mF~~P~~~~L~W~~~g~~G~~RFL~RVw~l~~~~~~~~~~~~~avrP~~~~~~~~l~~~~~~~~ 754 (916)
T TIGR00396 679 ----KKYGADALRLFIMFMGPIAASLEWNESGLEGARRFLDRVWNLVKEILGELSGIISAVRPKTELTETALEEAQKELR 754 (916)
T ss_pred ----HHCCHHHHHHHHHHCCCHHHCCCCCCCCHHHHHHHHHHHHHHHHHHCCCHHHEEEEECCCCCCCCCCCCCHHHHHH
T ss_conf ----4048027999997048831414777111013568889999999873266000255424610034311230468999
Q ss_pred --------HHHHHCCC-H--HHHHHHHHHHHHHHHHHCCCHH
Q ss_conf --------77630211-0--1279999999999997513067
Q gi|254780573|r 350 --------AVLSALYN-D--LNTVSAIQALHKLARESTKNHD 380 (461)
Q Consensus 350 --------~f~~AL~D-D--LNTp~ALa~L~~lvk~~n~~~~ 380 (461)
T Consensus 755 ~~~~~~lk~v~e~~~~~~~~fNT--~IS~~M~l~N~L~k~~~ 794 (916)
T TIGR00396 755 REVHKFLKKVTEDLEKLELSFNT--AISAMMELLNALYKATK 794 (916)
T ss_pred HHHHHHHHHHHHHCCCCCHHHHH--HHHHHHHHHHHHHHHCC
T ss_conf 99999998887531762013558--99999999999873102