>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=100.00 E-value=0 Score=1196.26 Aligned_cols=695 Identities=23% Similarity=0.336 Sum_probs=534.8 Q ss_pred CHHHHHHHHHHHHHHCCCCHHHHHCCCCCCCEEEECCCCCCCCC-CCHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCC Q ss_conf 96897799999998647614454056888848996282255889-76215778566878998767089826788882444 Q gi|254780445|r 25 KLPQKESELITYWQKIRLFDKIRESAVGRKNFTLHDGPPYANGH-IHIGHALNKILKDVIVRSFQMRNFNACFVPGWDCH 103 (963) Q Consensus 25 ~~~~~E~~~~~~W~~~~~f~~~~~~~~~~~~f~l~dgPPy~nG~-lH~GH~~n~~~kDi~~Ry~rm~G~~Vl~~~GwD~h 103 (963) T Consensus 2 ~~~~IE~KWq~~W~~~~~~~~~~dpi~~~~K~YiL~MFPYPSG~GLH~GHvR~YTItDvl~Ry~r~~GynVLHP~GwDAF 81 (916) T TIGR00396 2 NHIEIEKKWQQKWAENKTFKTTDDPISNKPKYYILSMFPYPSGAGLHMGHVRNYTITDVLSRYKRMKGYNVLHPMGWDAF 81 (916) T ss_pred CCHHHHHHHHHHHHCCCCCCCCCCCCCCCCCEEEECCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCCCCCCCCCC T ss_conf 70001157888732378565200554557864662378795607750165142357649999998628832476675745 Q ss_pred CCHHHHHHHHHHHHCCCCHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHCCEEEECCCCEECCCHHHHHHHHHHHHHHHHC Q ss_conf 20899999998765599833489999999999999999999999999706077636981157767989999999999987 Q gi|254780445|r 104 GLPIEWKVENEYLAKGKKKDDIPVNEFRQACRDSASAWVKIQSKEFQRLGIVGDFENPYTTMTRESEAQIASELLKIAES 183 (963) Q Consensus 104 GLPiE~~vek~l~~~~~~~~~~~~~~~~~~c~~~a~~~i~~~~~~~~rlG~~~Dw~~~y~T~dp~y~~~~~~~F~~l~~k 183 (963) T Consensus 82 GLPAEnaAI~~~----~-----~P-------~~WT~~NI~~m~~Ql~~LGf~yDw~RE~~T~~P~YYkwtQWiF~~Lf~k 145 (916) T TIGR00396 82 GLPAENAAIKRG----I-----HP-------AKWTYENIANMKKQLQALGFSYDWDREIATCDPEYYKWTQWIFLELFEK 145 (916) T ss_pred CCCHHHHHHHCC----C-----CC-------HHHHHHHHHHHHHHHHHHCCCCCHHCCCCCCCCCCCHHHHHHHHHHHHC T ss_conf 642589998648----9-----87-------0037899999999999845564411053238887433666888999762 Q ss_pred CCEECCCCEEEECCCCCCCCCCHHHE-EEEE------------------------------------------------- Q ss_conf 96110343022057435736500210-1321------------------------------------------------- Q gi|254780445|r 184 DQIYRGIKPIMWSIAEQTTLAEAEIE-YHDV------------------------------------------------- 213 (963) Q Consensus 184 Gliyr~~~pV~w~p~~~T~La~~Eve-y~d~------------------------------------------------- 213 (963) T Consensus 146 GLaY~ke~~VNWCP~d~TVLANEqVi~DS~Gna~SwR~~~~Vekk~l~QW~LKIT~YAe~LL~dLe~L~D~WP~~VK~MQ 225 (916) T TIGR00396 146 GLAYVKEATVNWCPNDGTVLANEQVIIDSDGNARSWRGGTPVEKKELKQWFLKITAYAEELLNDLEELDDHWPESVKEMQ 225 (916) T ss_pred CCEEEEEEEEEECCCCCCCCCCHHEEECCCCCCEEECCCCCEEEEECCCCEEHHHHHHHHHHHHHHCCCCCCCHHHHHCC T ss_conf 85276311133067778451020301227898532248784466306751011337889854114204678873136404 Q ss_pred -----ECCEEEEEEEECCC--CCCCCCCCCCHHCCHHHHHHHHHHHHCCCCCCEEEEEECCCCCCCCCCCCCEEEECCCH Q ss_conf -----05779998330375--31122001100000057886544532277674589983066531111237435512111 Q gi|254780445|r 214 -----DSDSILVGFPVKSS--ADYLIKSQIVIWTTTPWTIPGNRAIAFSSNHQYGLYDVISCSGQHTFDTGKKLIISKNL 286 (963) Q Consensus 214 -----~~~s~~v~F~l~~~--~~~~~~~~~~iwTTrP~Tl~~n~ai~v~p~~~Y~~~~~~~~~~~~~~~~~~~~i~a~~~ 286 (963) T Consensus 226 rNWIGkS~Gv~~~F~i~d~clkacn~~e~i~VFTTRPdT~fGvtYlalA~~HpL--v~~~~~~~~~-----~~v---~~f 295 (916) T TIGR00396 226 RNWIGKSEGVEITFKIADHCLKACNKKEKIAVFTTRPDTIFGVTYLALAPEHPL--VEKIAKNNPK-----EEV---AAF 295 (916) T ss_pred CCCCCEEEEEEEEEEECCCHHHHCCCCCEEEEEECCCCCEEEEEEEEECCCCHH--HHHHHHCCCH-----HHH---HHH T ss_conf 545655520489974257312103787516998668630100265766157858--9999740846-----789---999 Q ss_pred HHHHHHHCCCCEEEEEECCCCCCCCCEEEECCCCCCCCEEEECCCCCCCCCCCCCC--EEEEECCCCHHHHHHHHHCCCH Q ss_conf 88888760985178410011111285754313786651255114432233224454--0564057898898998760521 Q gi|254780445|r 287 AQSIANQTNVKIALVCDVKAEDLSKTMCSHPLKKLGYTFSVPLIDAEYVANDCGTG--FVHVAPSHGVEDFTAWNEAKDI 364 (963) Q Consensus 287 ~~~~~~~~~~~~~~~~~~~g~~l~g~~~~~Pl~~~~~~~~~pi~~~d~V~~~~GTG--~Vh~aPahg~~Dy~~~~~~~~~ 364 (963) T Consensus 296 i~~~~~~~~~~~~~~~~~k~Gv~tg~~AihPlT~e----~iPiwvAnYVl~~YGTgPsAVMGVPaHDeRDF~FA~~~~Lp 371 (916) T TIGR00396 296 IKKIAQKSDLERTKETKEKKGVFTGIYAIHPLTGE----KIPIWVANYVLASYGTGPSAVMGVPAHDERDFEFAQKYKLP 371 (916) T ss_pred HHHHHHCCCHHHHHHHHHCCCCCCCCEEECCCCCC----CCCEEEECEEECCCCCCCHHCCCCCCCCCCHHHHHHHCCCC T ss_conf 99987307055556642014646686363476776----44557633001157898502035888874127999857897 Q ss_pred HHH---------H---------CCCEEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHCCCCCCHHHH Q ss_conf 221---------0---------0220343023445510243100178632113554445675452356647982100000 Q gi|254780445|r 365 LLN---------R---------SVDIKVPSPVDGRGFYTTEAPGFSGARVLDDAGEKGNANEVVIAALINACAILNRSIV 426 (963) Q Consensus 365 ~~~---------~---------~~~l~~~~~vd~~G~~~~~~~~~~G~~v~~~~~~~~~a~~~ii~~L~e~g~l~~~~~~ 426 (963) T Consensus 372 i~~Vi~~~~~~~~~~~~~~A~t~~g~~~ns~tstdGvltkeC~~f~Gl~~-------~~A~~~I~~~L~~~~~------- 437 (916) T TIGR00396 372 IKVVIDPADADGKNLKLEQAYTEDGVLVNSSTSTDGVLTKECGEFNGLNS-------SEAKEAIIKMLEKEGK------- 437 (916) T ss_pred CEEEECCCCCCCCCHHHHHHHHHCCCEECCCCCCCCCHHHHHHHHCCCCC-------HHHHHHHHHHHHHCCC------- T ss_conf 15875277766751156676764652216876534410100022237761-------7899999999986388------- Q ss_pred CCCCCCCCCCCCCEEEEEEEEEEEEECCCCCCCHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHCCCCCCCCCCCCCCCCE Q ss_conf 01221132101320333310236630224554236899998752000002444343202443043200001123456722 Q gi|254780445|r 427 KHSYPHSWRSKKPIIFRTTSQWFLHMDKKLGDGSTLRSRALSEVEKIRFFPSSGKNRLRSMIENRPDWLLSRQRNWGVPI 506 (963) Q Consensus 427 ~H~yP~cwR~~~pii~r~~~QWFi~~d~~~~~~~~~k~~~l~~i~~v~~~P~~~k~r~~~~i~~~~DW~ISRqR~WG~PI 506 (963) T Consensus 438 ---------gk~~v~Yr-----------------------------------------------LRDW~~SRQRYWG~PI 461 (916) T TIGR00396 438 ---------GKRKVNYR-----------------------------------------------LRDWLFSRQRYWGEPI 461 (916) T ss_pred ---------CCEEEEEE-----------------------------------------------EECCCEEEECCCCCCC T ss_conf ---------50212346-----------------------------------------------5325344000268898 Q ss_pred EEEECCCCCEEECC--CHHHHHHHHHH--HCC---CCCCCCCCCHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 58982588473252--11244421222--118---874335640111468878875545664210000333545433222 Q gi|254780445|r 507 CFFYNEKGEILLDK--AINDRIIKTFK--DQG---SDAWFSEGSRDFFLGDRASEPWIQSKDILDVWFDSACTHTILLGK 579 (963) Q Consensus 507 Pi~~~e~~~~~~~~--~~~~~i~~~~~--~~g---~d~~~~~~~~~~~~~~~~~~~~~r~~DvlDvWfDSg~s~~~~~~~ 579 (963) T Consensus 462 Piih~e~g~~~P~~~~dLPv~LP~~~~~~~~G~~~sPL~~~~~W~-~v~~~~~~~~A~RETdTMdtf~~S--sWYylRY~ 538 (916) T TIGR00396 462 PIIHCEDGGAVPVPEEDLPVKLPELVNYDGSGTGESPLSRIKEWV-NVTCPSCGKPALRETDTMDTFIGS--SWYYLRYL 538 (916) T ss_pred CEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHCCCCE-EECCCCCCCCCCCCCCCCCCHHHH--HHHHHHCC T ss_conf 778806768424434468710750023578889888043074632-414788798754337876305777--89998603 Q ss_pred ------------------CCCCCCCCCCCCCCCCCC--------CHHHHHHHHHHH-HCCC----CCEEEEECCCCCEEC Q ss_conf ------------------223334431002554442--------111245544433-1178----400001303782621 Q gi|254780445|r 580 ------------------DPKLAWPADVYLEGSDQH--------RGWFQHSLLESC-ATRG----STPFTSLITHGFSVD 628 (963) Q Consensus 580 ------------------~~~~~~PaD~~~eG~Dq~--------RgWF~s~ll~~~-~~~~----~~Pfk~v~~hG~vld 628 (963) T Consensus 539 ~p~~n~~FWPi~~~~d~e~~~~wlPVD~YiGG~E-HAiLHLLY~RF~-h-K~L~D~g~v~~PaGi~EPFkKL~~QGMVlg 615 (916) T TIGR00396 539 DPKNNTNFWPIDQPFDKEKAEYWLPVDLYIGGIE-HAILHLLYARFF-H-KFLYDLGLVSTPAGIKEPFKKLINQGMVLG 615 (916) T ss_pred CCCCCCCCCCCCCCCCHHHHHHCCCCCEEECCHH-HHHHHHHHHHHH-H-HHHHHCCCCCCCCCCCCHHHHHHHCCEEEC T ss_conf 5001766687321302788975588441026268-998998888999-9-999745761587766571455420000211 Q ss_pred -------CCCC------------------------------------CHHCCCCCCCCHHHHHCCCCHHHHHHHHH-HCC Q ss_conf -------3453------------------------------------00001234433366411367578878887-178 Q gi|254780445|r 629 -------ENGE------------------------------------KMSKSKGNVVFPEEIISESGADVLRYWAV-NSD 664 (963) Q Consensus 629 -------~~G~------------------------------------KMSKS~GNvi~p~~ii~~yGaD~lR~~~~-~~~ 664 (963) T Consensus 616 ~~f~y~~~~g~~~W~~p~d~~~~~d~~~d~~~~~d~~~~~~~~~~~~KMSKSK~N~i~P~e~~~~yGADa~Rlf~mF~~P 695 (916) T TIGR00396 616 DAFYYKKPNGKRIWVVPADELIERDEKGDIKKAKDKSGGELVVVGYEKMSKSKGNGIDPQEIVKKYGADALRLFIMFMGP 695 (916) T ss_pred CCEEECCCCCCEEEEECCCCEEECCCCCCCCCCEECCCCCEEEEEEEEECCCCCCCCCCHHHHHHCCHHHHHHHHHHCCC T ss_conf 61341389973677645751661046678654232588824788777620236798870389740480279999970488 Q ss_pred CCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCCCC--C---CCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH--H Q ss_conf 76655443102567776400000110000012244--4---456731011127888754368999999889876540--1 Q gi|254780445|r 665 YHDDQRLGKNIIQTNIDTYRKLRNTIRWMLGMLAH--D---TGNEPSLADMPALEQLMLHRLTELDQVVREAYDAFN--F 737 (963) Q Consensus 665 ~~~d~~~~~~~l~~~~~~~~kl~Nt~rf~l~~l~~--~---~~~~~~~~~l~~~DkwiLskl~~~i~~v~~~~e~~~--f 737 (963) T Consensus 696 ~~~~L~W~~~g~~G~~RFL~RVw~l~~~~~~~~~~~~~avrP~~~~~~~~l~~~~~~~~~~~~~~lk~v~e~~~~~~~~f 775 (916) T TIGR00396 696 IAASLEWNESGLEGARRFLDRVWNLVKEILGELSGIISAVRPKTELTETALEEAQKELRREVHKFLKKVTEDLEKLELSF 775 (916) T ss_pred HHHCCCCCCCCHHHHHHHHHHHHHHHHHHCCCHHHEEEEECCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCHHH T ss_conf 31414777111013568889999999873266000255424610034311230468999999999988875317620135 Q ss_pred HHHHHHHHHHHHHHCCCCHHHCCCHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHCCCCCCCEEEC Q ss_conf 22668899878630240010102012227899808999999999999999999970004489999998638867734533 Q gi|254780445|r 738 KEVVRQLTNFSNAELSSFYFDIRKDSLYCDSPSSLKRLSSIAVIRILCRHLIIWIAPILPFTAEEAWLSLNPEAVSVHLE 817 (963) Q Consensus 738 ~~a~~~i~~F~~~dLS~~Yld~~Kdrly~~~~~s~~R~s~~~~L~~il~~l~~lLaPi~P~~aEEiw~~l~~~~~SI~~~ 817 (963) T Consensus 776 NT~IS~~M~l~N~-L------------~k~~~~ge-~~~---~~~e~~~~~~~~L~P~aPhlaeELwe~lg~~~~~~~~~ 838 (916) T TIGR00396 776 NTAISAMMELLNA-L------------YKATKDGE-DRA---LYLEYLKGLVTVLSPFAPHLAEELWEKLGSEPSIIKQA 838 (916) T ss_pred HHHHHHHHHHHHH-H------------HHHCCCCH-HHH---HHHHHHHHHHHHHCCCHHHHHHHHHHHHCCCCCHHHHH T ss_conf 5899999999999-8------------73102341-158---89999998998851520168999999857770015441 Q ss_pred CCCCCCHHHCCHHHHHH-HHHHHHHHHHH Q ss_conf 58899835689899999-99999999999 Q gi|254780445|r 818 LFPIIPLEWQNACLSKK-WGKILQLRKVV 845 (963) Q Consensus 818 ~wP~~~~~~~d~~le~~-~~~l~~ir~~V 845 (963) T Consensus 839 ~w~~~D~~~l---~~d~k~~iv~~~nGK~ 864 (916) T TIGR00396 839 KWPKVDETAL---VEDKKVEIVVQVNGKV 864 (916) T ss_pred CCHHHCHHHH---HCCCEEEEEEEEEEEE T ss_conf 1202124654---1252058999974268

HHsearch alignment for GI: 254780445 and conserved domain: TIGR00396