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