>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=100.00 E-value=0 Score=1093.90 Aligned_cols=540 Identities=34% Similarity=0.521 Sum_probs=471.7 Q ss_pred HHHHHHHHHHHHHHCCCCCCCCCCEEEEECCCCCCCCCCCHHHHHHHHHHCCCHHHHHHHHHHHCCCC-CCEEEEEEECC Q ss_conf 99999999999860488821224527741788012741104899988882899799999999834578-97314885479 Q gi|254780285|r 8 SSRLKNYLKEIDCKIKVEKKILDRIVIERPRDCAHGHLSTNAAMILSRPLGLDPLTIAELIVARIKID-PDVDSVFIAGK 86 (586) Q Consensus 8 ~~~i~~~l~~~~~~~~~~~~~~~~i~ve~p~~~~~GD~~~n~a~~lAK~~kk~P~~iA~~i~~~l~~~-~~i~~vevagp 86 (586) T Consensus 2 ~~~l~~~i~~~~~~~~~~~~~~i~~~~~~~~~~~~GDy~~~i~f~lak~~~~~P~~iA~e~~~~~~~~~~~~~~~~~~gp 81 (600) T TIGR00456 2 KTLLKDEIKAALEKAGLSKESLILNLVEETPNPEFGDYASNIAFPLAKELKKAPRAIAEEIVDKLKTSEEIIEKVEAAGP 81 (600) T ss_pred HHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHCCCCCCCCCCEEEECC T ss_conf 25789999999863276221345333213888764505889999987661788789999999846664220102055237 Q ss_pred -CEEEEEECHH-HHHHHHHHHHHCCHHCCCCCCCCCCCEECCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCEE Q ss_conf -7687888888-99999999985622138876565541000223443224411777778568999999998506664102 Q gi|254780285|r 87 -GFINLYLSPS-YLRKILSSIVVSGIEYGRNLIGKGTKVNIEFVSANPTGPMHVGHCRCAVVGDTLASLMAFSGYEVTRE 164 (586) Q Consensus 87 -GfIN~~l~~~-~~~~~l~~i~~~~~~yG~~~~~~~~kVvVE~sSpNp~KplHVGHlRsaiIGdsi~ril~~~G~~V~r~ 164 (586) T Consensus 82 ~GfINF~~~~~~~~~~l~~~~~~~~e~yG~~~~~~~~ki~~EfsSaNp~gplH~GHlR~aiIGD~L~r~l~~~G~~V~r~ 161 (600) T TIGR00456 82 CGFINFFLSPQKLLENLIQKILEQKEKYGSKKLKESKKIIIEFSSANPAGPLHIGHLRNAIIGDSLARILEFLGYDVIRE 161 (600) T ss_pred CCEEEEEECHHHHHHHHHHHHHHCCCCCCCCCCCCCEEEEEEEECCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCEEEE T ss_conf 51376654678999999887850120246766578707999876588897611000025777889999998759707985 Q ss_pred ECCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCHHHCCCC-CHHH-----HHHH------HHHHHHHHHHCCCC-H--HH Q ss_conf 0147753145556789875322210245000660110241-0000-----1278------88887576413430-2--37 Q gi|254780285|r 165 YYINDAGAQINTLALSVFWRYQQALYNNDSDLPEGYYPGV-YLKH-----VGKE------LADKYSSELLNFPE-E--KW 229 (586) Q Consensus 165 nyvgD~G~Q~~~li~~~~~~~~~~~~~~~~~~~e~~~~~~-y~~~-----~~~e------~~~~~~~~~~~~~e-~--~~ 229 (586) T Consensus 162 yyVND~G~Q~~~l~~~~~~~~~e~~--~~~~~~~~~~~~~~y~~~~k~~~e~~~~~~~~s~~~~~~~~~~~~e~gdnNe~ 239 (600) T TIGR00456 162 YYVNDWGRQIGLLVLGVEKFGNEKE--TAVKKPDHGLEGFDYVEINKRLEENEEPINKQSLEEEARELFVKLESGDNNEK 239 (600) T ss_pred EEECCHHHHHHHHHHHHHHHCCHHH--CCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCCCHHHHHHHHHHHHHCCCCHHH T ss_conf 2005428999999999998512132--02668742012358889887886177765333545789999997432444289 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHCCCCCCCEECHHHHHHCCHHHHHHHHHHHH-HCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 9999999789988754555887087521000158873010457999999999-749851134267555654200024781 Q gi|254780285|r 230 LPIVKDYSVQAMMKIIRDDLKALNIQHDIFISEDDFHRGDPSPIRDIIDNLA-RQGYVYEGILPPPKSKTTQKCDMDRKQ 308 (586) Q Consensus 230 ~~~~~~~~~~~~~~~~~~~l~~l~i~fD~~~~Es~~~~~~~~~i~~~i~~l~-~~g~~~e~~~~~~~~~~~~~~~~~~~~ 308 (586) T Consensus 240 ~~~~w~~~~~~~l~~~k~tl~~lni~~D~~~~E~E~~~--~~~~~~v~e~L~k~~gl~~e----------------d~gA 301 (600) T TIGR00456 240 TIKLWKRLVEYALEGIKETLKRLNIHFDEFVWEGESVK--NGKVPKVLEDLKKEKGLVVE----------------DDGA 301 (600) T ss_pred HHHHHHHHHHHHHHHHHHHHHHHCCCEEEEEECCEEEE--CCCHHHHHHHHHHHCCCEEE----------------CCCE T ss_conf 99999999999999999999862965005885404577--48607899986310378067----------------4734 Q ss_pred EEEEHHHCCCC------CCCCCCCCCCCHHHHHHHHHHHHHHHHC-CCCCCCCCCCCCHHHHHHHHHHHHHHHC--CCCC Q ss_conf 56510110222------2222102465213568889999997522-5554333677761368999999999722--6634 Q gi|254780285|r 309 LLFRSTMVGDD------VDRPLLKSDGSYTYFAADLAYFKCKYER-GFDNMIYVMGSDHSGYVKRLEAVAAAVS--EKKA 379 (586) Q Consensus 309 ~~~~~~~~g~~------~d~vl~rsDGt~~Y~t~DiA~~~~k~e~-~~d~~iyVv~~~Q~~h~~~v~~~~~~lg--~~~~ 379 (586) T Consensus 302 ~~~~L~~f~d~kadG~~k~~Vl~k~DGt~~Y~T~DiAyh~~k~~~~~~d~~i~V~gsdh~~h~~q~~~~~e~LG~~~~~~ 381 (600) T TIGR00456 302 LWLDLTEFGDKKADGDEKDRVLIKSDGTYLYLTRDIAYHLDKLERLGFDKLIYVWGSDHKLHIAQVFAILEKLGYLSKKK 381 (600) T ss_pred EEEECCCCCCCCCCCCCCCEEEEEECCCCCCHHHHHHHHHHHHHHCCCEEEEEEEECCHHHHHHHHHHHHHHCCCCCCCC T ss_conf 89975776662126764564788508950105989999999873439728998740518889999999999716537886 Q ss_pred CCEEEECCHHHCCCCCCCCCCCCCCCCHHHHHHHHHH----------------------------HHHHHHHHHHHHHCC Q ss_conf 5115311011012211000001223302456777776----------------------------321123455542000 Q gi|254780285|r 380 QINVLLCELVRLYRDGMPIKMSKRAGDFITLRHVVDE----------------------------VGSDSVRFMMLWRKN 431 (586) Q Consensus 380 ~~~~~~~~~v~l~~dg~~~kmstR~G~~v~l~dll~e----------------------------vg~~aiky~~L~~~~ 431 (586) T Consensus 382 ~L~~~~f~~v~~~-~GK--kmkTR~G~~i~ld~ll~e~~~RA~~~~~~~~~~~~~~e~~e~~a~~vG~gAvry~~l~~~~ 458 (600) T TIGR00456 382 ELEHLEFGMVPLG-SGK--KMKTRRGNVISLDNLLDEASKRAGNVITKRNTDLEQDEAEEKVADAVGIGAVRYADLSKNR 458 (600) T ss_pred CEEEEEEEEEECC-CCC--CCCCCCCCCEEHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHCC T ss_conf 1689987643257-888--5434556602234468999999999996110135222037899999736799999997278 Q ss_pred HHHHHHHHH-HHHHHCCCCHHHHHHHHHHHHHHHHH-HHHHHCCCCCCCCCCCCCCCCCCCC-CHHHHHHHHHHHHHHHH Q ss_conf 123334477-76532024436788888888999987-5332002468322342235521149-98999999998421899 Q gi|254780285|r 432 SELLDFDFC-KVKEQSKENPVFYVQYAYARCRSIFR-QAKDIFPDLDFDLFPRNVIPQESEF-DTSELQLIVHLAEYPRV 508 (586) Q Consensus 432 ~~~~~Fd~d-~~l~~~~~nt~~YiqYa~aR~~SIlr-Ka~~~~~~~~~~~~~~~~~~~~~~~-~~~E~~L~~~l~~f~~v 508 (586) T Consensus 459 ~~~~~Fd~d~~~L~-f~~n~~pY~QYAhaR~~Silr~~~~~~~~~~--------~~~~~~~~~~~~E~~L~~~L~~fp~~ 529 (600) T TIGR00456 459 ETHYVFDWDTAMLS-FEGNTAPYIQYAHARICSILRKKAEIDGEKL--------IADDFLLLKEEKEKELLKLLLQFPEV 529 (600) T ss_pred CCCCEEECCCHHHC-CCCCCCCHHHHHHHHHHHHHHHHCCCCHHHH--------HHHHCCCCCCHHHHHHHHHHHHHHHH T ss_conf 98815501201111-5788743258889999998763102331345--------53200036888899999998564899 Q ss_pred HHHHHHHCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCC Q ss_conf 99999852812799999999998899987068666665435787899999999999999999998731587985445 Q gi|254780285|r 509 IENATIAQEPYKLAFYLYDLASVFHGHWSHGRENPRLRFVQANNRKLTMMRLQLVHAVASIINSGLNIIGVESPNEM 585 (586) Q Consensus 509 i~~a~~~~~P~~l~~Yl~~La~~Fn~fY~~~~~~~~~~v~~~~~~~~~~~RL~L~~a~~~vL~~~L~LLGI~~perM 585 (586) T Consensus 530 ~~~~~~~~~p~~l~~Yly~LA~~F~sfY~~~------~v~~~~~~~~~~~RL~L~~~~~~~L~n~L~LLGI~~~~rM 600 (600) T TIGR00456 530 IEEAAEEREPHVLTNYLYELAKLFSSFYKAC------PVLDAENEELAKARLALLKATRQTLKNGLELLGIEAPERM 600 (600) T ss_pred HHHHHHHCCCHHHHHHHHHHHHHHHHHHHCC------CCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCC T ss_conf 9999985471888999999977642366417------7889862668999999999999999998876088987779

HHsearch alignment for GI: 254780285 and conserved domain: TIGR00456