>TIGR00211 glyS glycyl-tRNA synthetase, beta subunit; InterPro: IPR015944 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 and are mostly monomeric, while class II aminoacyl-tRNA synthetases share an anti-parallel beta-sheet formation, flanked by alpha-helices , and are mostly dimeric or multimeric. 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 aci, glutamine, isoleucine, leucine, methionine, tyrosine, tryptophan and valine belong to class I synthetases. The synthetases specific for alanine, asparagine, aspartic acid, glycine, histidine, lysine, phenylalanine, proline, serine, and threonine belong to class-II synthetases . The 10 class I synthetases are considered to have in common the catalytic domain structure based on the Rossmann fold, which is totally different from the class II catalytic domain structure. The class I synthetases are further divided into three subclasses, a, b and c, according to sequence homology. No conserved structural features for tRNA recognition by class I synthetases have been established. Class-II tRNA synthetases do not share a high degree of similarity, however at least three conserved regions are present , , . In most eubacteria, glycyl-tRNA synthetase (6.1.1.14 from EC) is an alpha2/beta2 tetramer composed of 2 different subunits , , while in archaea, eukaryota and some eubacteria, glycyl-tRNA synthetase is an alpha2 dimer (see IPR002315 from INTERPRO). This entry represents the beta subunit of the tetrameric enzyme. What is most interesting is the lack of similarity between the two types: divergence at the sequence level is so great that it is impossible to infer descent from common genes. The alpha (see IPR002310 from INTERPRO) and beta subunits also lack significant sequence similarity. However, they are translated from a single mRNA , and a single chain glycyl-tRNA synthetase from Chlamydia trachomatis has been found to have significant similarity with both domains, suggesting divergence from a single polypeptide chain .; GO: 0000166 nucleotide binding, 0004820 glycine-tRNA ligase activity, 0005524 ATP binding, 0006412 translation, 0006426 glycyl-tRNA aminoacylation, 0005737 cytoplasm.

Probab=100.00 E-value=0 Score=945.64 Aligned_cols=666 Identities=35% Similarity=0.562 Sum_probs=632.1 Q ss_pred CEEEEEECCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEEEECCCEEEEEECCCCCCCCCEEEEECCCCC------- Q ss_conf 4016400201698999999999999999999976998033588630745899984954207510023027898------- Q gi|254781094|r 3 DFLLEIYSEEIPARMQHKAAEDLSIILIGLLKEEGVIYQNMRQYWTPHRLFLYLKGLSPHSPEKIEERLGPRV------- 75 (702) Q Consensus 3 ~lLlEIgtEElPa~~~~~~~~~l~~~~~~~l~~~~l~~~~i~~~~TPRRLav~i~~l~~~q~d~~~e~kGP~~------- 75 (702) T Consensus 5 ~~l~~~g~~~~p~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p~~l~~~~~~~~~~~~~~~~~~~gp~~~~~~~~~ 84 (743) T TIGR00211 5 TLLVEIGTEELPAKALRSLATELGDKLTAGLNEAGLEHGSVEWFGTPRRLALLVKDLPELQPDRKEEKKGPPVKAAFDAQ 84 (743) T ss_pred HHHHHHHHHHCCHHHHHHHHHHHHHHCCHHHHHHCCCCCCEEEEECCHHHHHHHHHHHHCCCHHHHHHCCCHHHHHHHCC T ss_conf 32232311211378999998864431003455412552322122040356665530011030134542263134442012 Q ss_pred -CCCCHHHHHHHHHCCCCHHHHHHEEEECCCE---EEEEEEEECCCCCHHHHHHHHHHHHHHCCCCCEEECCCCCCCCCC Q ss_conf -5898789989997799824433203406982---899999915885099999999999986289851310377656767 Q gi|254781094|r 76 -GAGKKAIDGFLRSTGLQTISDCQIKKDPKKG---DVYLAVLRKPKRLIEDVLKTIVPVAIQKVPWPKSMRWSTTHSPIS 151 (702) Q Consensus 76 -g~pt~A~~GF~ks~gi~~~~~~~i~~~~~kg---~~~~~~~~~~g~~~~eiL~~ii~~~i~~l~~pKsMrWg~~~~~~~ 151 (702) T Consensus 85 ~g~~~~~~~g~~~~~g~~~-~~~~~~-~~~~~~~~~~~~~~~~~~g~~~~~l~~~~~~~~~~~l~~~~~~~wg~~~---- 158 (743) T TIGR00211 85 DGKPTKAALGFAKGQGLNV-EDAEIL-ETDKGNNKEWLFHRKFLEGEPTKDLLPPLVLELLAGLPFPKSMRWGDGD---- 158 (743) T ss_pred CCCCCHHHHHHHHCCCCCH-HHHHHH-HCCCCCCCCEEEEHHHHCCCCHHHHHHHHHHHHHHHCCCCCCCCCCCCC---- T ss_conf 5664301320010147761-233442-1146664100110224403203566678889998624775311235442---- Q ss_pred CEEEEEECCEEEEEECCCCCCCCEEEEEECC----CCCCCCCCCCCCCCCCCEEEECHHHHHHHHCCC-CEEECHHHHHH Q ss_conf 4166530320567863677787231024458----221111022344577856631679999862027-84716999999 Q gi|254781094|r 152 AFSWIRPLKSILCILVAEDAKEKIIDLDLKE----IPCGNITYGHRFHAPHPIKVQSLDHYIRDLEEA-MVLLDPECRRN 226 (702) Q Consensus 152 ~~~FvRPirwIvaLl~~~~~~~~vi~~~~~g----i~s~n~T~GHRf~~~~~i~I~~a~~Y~~~L~~~-~Vi~d~~~R~~ 226 (702) T Consensus 159 -~~~~~p~~~~~~l~~----g~~~~~~~~~~~~~~~~~~~~~~g~~~~g~~~~~~~~~~~y~~~l~~~g~~~~d~~~~~~ 233 (743) T TIGR00211 159 -LRFIRPIHWLVLLLN----GDDVLPLEILGGGTTLESDRTTRGHRFLGEDEVSIESPDAYPELLKENGHVIADPKERKA 233 (743) T ss_pred -CCCCCCCEEEEEEEC----CCCCCCEEECCCCCEECCCCHHHHHHHCCCCCEEECCHHHHHHHHHHCCCEEECHHHHHH T ss_conf -100020000234433----663033044055310013200101211163100102515679988526863215167789 Q ss_pred HHHHHHHHHHHHCCCEECCCHHHHHHHHHHCCCCEEEEEEECHHHHCCCHHHHHHHHHHHCCCEEEECCCCC-----CCC Q ss_conf 999999998885398214666788788744089846888307777128989999999840011365536886-----132 Q gi|254781094|r 227 AILNDAHRLASAVGLELVEDKDLLEEIIGLVEWVQVFMGSFDKKYLCLPEELIRLTIKTNQKCFVTRTREGV-----LAN 301 (702) Q Consensus 227 ~I~~~i~~~a~~~~~~~~~d~~Ll~Ev~~LvE~P~~~~G~F~~~fL~lP~evl~~~m~~hQkyf~~~~~~g~-----l~~ 301 (702) T Consensus 234 ~~~~~~~~~~~~~~~~~~~~~~ll~~~~~~~~~p~~~~~~~~~~~l~~p~~~~~~~~~~~~~y~p~~~~~g~~~~p~l~p 313 (743) T TIGR00211 234 KILAELETLAAKLGGEADLDEDLLDEVESLVEYPTALLGKFEEEFLSLPAEVLVTTMKGHQRYFPVYDKDGKEESPTLLP 313 (743) T ss_pred HHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEECEECCCCCCCCCCCCC T ss_conf 99988888887504531014678989988764224676555577751421453210002430101001577633531024 Q ss_pred EEEEEECCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHCCCCEEHHH Q ss_conf 48985057765543024567889978764225999850300011111111110011220137889988421002303134 Q gi|254781094|r 302 CFILVSNIQASDGGAAIVQGNSRVVAARLEDALHFWKRDQNNLPNLSSLKESALKFNLDLSKPLDQRMARLDMLDVVFHA 381 (702) Q Consensus 302 ~Fi~v~N~~~~~~~~~v~~GnerVl~ARL~DA~FF~~~D~~~~~~~~~~~~~~~~~~~dlk~~L~~~~~~L~~~~v~F~~ 381 (702) T Consensus 314 ~~~~~~~~~~~~-~~~~~~g~~~~~~~~l~d~~~~~~~d--------------------~~~~~~~~~~~l~--~~~~~~ 370 (743) T TIGR00211 314 HFITVANGNPKD-PEKIALGNEKVLRARLSDAEFFYKTD--------------------LKKPLDDNLPRLE--TVLFQE 370 (743) T ss_pred CEEEEECCCCCC-CHHHHCCCCHHHHHHHHHHHHHHHHC--------------------CCCCHHHHHHHHH--HHHHHH T ss_conf 425773365411-02333054112222332345655310--------------------2110233212445--544343 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHCCCCH--------HHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHCCCCHHHHH Q ss_conf 551389989899999999886529998--------899999997423678889840345789999999862369988999 Q gi|254781094|r 382 KIGTQGERVSRIRVLGKKIAQLIDADV--------ALVDRAIVLSKADLCTEIVREFPELQGKIGKEYAVLQNENISCCD 453 (702) Q Consensus 382 ~LGs~~dK~~Ri~~la~~la~~l~~~~--------~~~~rAa~L~KaDL~t~mV~EFpeLQG~mG~~YA~~~ge~~~Va~ 453 (702) T Consensus 371 ~lg~~~d~~~~~~~~~~~~~~~~~~~~~~p~~~~~~~~~~~~~~~~~dl~~~~~~~~~~~~g~~g~~y~~~~g~~~~~~~ 450 (743) T TIGR00211 371 ELGTLKDKVDRISELAGYLADQLGADENTPLEKALGHVKRAGLLSKADLLTNLVYEFPELQGIMGEKYALHDGEDEAVAL 450 (743) T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHH T ss_conf 32024567789999999999875100200268888766666666666667666653001222344455541360367888 Q ss_pred HHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCHHHHHHH-- Q ss_conf 999973447767778863588999999749989876510567687769688887434468999837997887896303-- Q gi|254781094|r 454 AIEEHLKPRGPLENVPTNKISITVSLADKLDTLINFWAINEKPSGSKDPYALRRATLGIIRIILENKIDIPLSQFIED-- 531 (702) Q Consensus 454 aI~ehY~P~~~~d~lP~~~~g~ilsiaDKlDtl~g~f~ig~~PTGS~DPfaLRR~a~GiirIl~e~~l~l~l~~li~~-- 531 (702) T Consensus 451 ~~~~~y~p~~~~~~~p~~~~~~~~~~~~~~d~~~~~~~~g~~p~g~~dp~~l~~~~~g~~~~~~~~~~~~~~~~~~~~gc 530 (743) T TIGR00211 451 ALNEHYLPRSAGDDLPSSLPGSVVALADKLDTLASLFGIGLLPTGSKDPFALRRAALGLLRILLEKNLELDLEELLTEGC 530 (743) T ss_pred HHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCHHHHHHHHH T ss_conf 77664222225765554124567776665556665542045678765512456778899999987057864688864101 Q ss_pred -----------------HHHHHHHHHHHHHHHHHC-CCCHHHHHHHHHCCCC---------------CHHHHHHHHHHHH Q ss_conf -----------------649999999999987633-8887899885416899---------------9899999999999 Q gi|254781094|r 532 -----------------QNLILFFHDRLKLYLHDR-DIRHDLIEAILRPEND---------------NLLTIVDLIKHLN 578 (702) Q Consensus 532 -----------------~~l~~Fi~~Rl~~~L~e~-G~~~DiI~AVl~~~~~---------------~~~~i~~r~~aL~ 578 (702) T Consensus 531 ~d~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~~~~cd~~~~~~~d~~~~~~~~~~~~~~~~~ 610 (743) T TIGR00211 531 RDFVLLQGDKLTNSNDLEDLLDFLLGRFRALLQDEQGIDPDVIDAVLGRGETNCDEAQSRLHDRLLADPADFDARAKALS 610 (743) T ss_pred HHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHH T ss_conf 23232113433304679999999999889886320154078899876046554035677666777643777888999999 Q ss_pred HHHCCH----HHHHHHHHHHHHHHHHHHHHHCCCCCCC--CCCHHHHCCHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHH Q ss_conf 987195----1388999999999985565312467777--7385683598999999999999999999850253899999 Q gi|254781094|r 579 EFFSSA----KGEKFLLSAKRIFQILAIEEKKNREISL--EISPQYLLLEAEKRLYAVISDFGTHIQESMDHKRYHQIGD 652 (702) Q Consensus 579 ~f~~~~----~~~~l~~a~KRv~NIL~~~~k~~~~~~~--~vd~~Lf~~~~Ek~L~~~~~~~~~~i~~~l~~~dy~~~L~ 652 (702) T Consensus 611 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p~d~~~~~p~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 690 (743) T TIGR00211 611 HFLDLPKNAQGAEALAAALKRVANILKKGGPPTDVLGPRPEINAPLLKEPKEKALFEALLALKPNLQELFSKGDYETALE 690 (743) T ss_pred HHHCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH T ss_conf 86237731246788888765666643125777544566554450221154678999999987765555541003789999 Q ss_pred HHHHHHHHHHHHHC---CCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCHHHCC Q ss_conf 99853278887510---270368868999999999999999998606845219 Q gi|254781094|r 653 LLHSICEPIEIFFD---QVLVNVDDREVRDNRLSLLQYIKNIILIVINVQKIV 702 (702) Q Consensus 653 ~L~~L~~~Id~FFD---nVmVm~eD~~IR~NRL~LL~~i~~~f~~iaDfs~Lv 702 (702) T Consensus 691 ~~~~l~~p~~~~~~gpd~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 743 (743) T TIGR00211 691 ALAELREPVDEFFDGPDSVLVLADDDELRKNRLNLLGGLRDLFLELGDIGALV 743 (743) T ss_pred HHHHHHHHHHHHCCCCCCEEEECCCHHHHHHHHHHHHHHHHHHHHHHHHHHCC T ss_conf 98642100687507866347640645667778999988899888763233139

HHsearch alignment for GI: 254781094 and conserved domain: TIGR00211