HHsearch alignment for GI: 254780933 and conserved domain: TIGR00392

>TIGR00392 ileS isoleucyl-tRNA synthetase; InterPro: IPR002301 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 . Isoleucyl-tRNA synthetase (6.1.1.5 from EC) is an alpha monomer that belongs to class Ia. The enzyme, isoleucyl-transfer RNA synthetase, activates not only the cognate substrate L-isoleucine but also the minimally distinct L-valine in the first, aminoacylation step. Then, in a second, "editing" step, the synthetase itself rapidly hydrolyzes only the valylated products , as shown from the crystal structures. ; GO: 0000166 nucleotide binding, 0004822 isoleucine-tRNA ligase activity, 0005524 ATP binding, 0006412 translation, 0006428 isoleucyl-tRNA aminoacylation, 0005737 cytoplasm.
Probab=100.00  E-value=0  Score=1722.16  Aligned_cols=808  Identities=27%  Similarity=0.467  Sum_probs=708.5

Q ss_pred             CCCCCCCHHHHHHHHHHHHHHCCCCCCCCCCCCCCCEEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCCCC
Q ss_conf             88767897898899999998769864453454899808997284499998654378896779999987670898356778
Q gi|254780933|r    2 MIDKTYDFAFIEQKSVEKWNSVDAFRIDVAPKLGSGVFCIAMPPPNVTGSLHMGHAFNTTIQDIMIRFERMRGKNVLWQP   81 (947)
Q Consensus         2 ~~~~~y~~~~iE~~~~~~W~~~~~f~~~~~~~~~~~~f~~~~ppP~~nG~lHiGH~~~~t~~Di~~Ry~rm~G~~Vl~~~   81 (947)
T Consensus         1 ~~~~~~nl~~~E~~~~~~W~~~dif~~~~~~~~~~~~F~lhDGPPYAnG~iHlGHalNKilKDii~Ryk~m~G~~v~~~p   80 (938)
T TIGR00392         1 KFPMRGNLSKREEKILKFWQEKDIFEKVKKRNKDKPEFVLHDGPPYANGAIHLGHALNKILKDIILRYKTMQGYNVTYKP   80 (938)
T ss_pred             CCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHCCCCCEECCCCC
T ss_conf             98877882125757776677899999999850899835874485876799740255666761123210112250032047


Q ss_pred             CCCCCCHHHHHHHHHHHHHHCCCCHHHCC-HHHHHHHHHHHHHHHHHHHHHHHHHHCCEEECCCCEECCCHHHHHHHHHH
Q ss_conf             81545408999999997674599877779-89999999999999999999999980836642798115886799999999
Q gi|254780933|r   82 GTDHAGIATQITVESRLFAQSSLTREDIG-RDAFIEKVWEWKKESGGSILSQLKRLGASCDWSRERFTMDEGMSNAVRNA  160 (947)
Q Consensus        82 G~D~~GlPiE~~vek~l~~~~~~~~~~~g-~~~f~~~~~~~~~~~~~~~~~~~~~lG~~~Dw~r~y~T~d~~y~~~v~~~  160 (947)
T Consensus        81 GWDtHGLPIE~~Vek~lg~~~~~~~~~~~g~E~fr~~Cr~~A~~~~~~q~~~F~rLG~w~Dwe~pY~T~d~~y~~~~w~~  160 (938)
T TIGR00392        81 GWDTHGLPIELKVEKKLGISGKKEIESLEGIEEFREKCREFALKQIEEQREQFQRLGVWGDWENPYKTMDPSYEESQWWL  160 (938)
T ss_pred             CCCCCCCCEEEEEECCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCEEECCCCCCCCCCCHHHHHHHHHH
T ss_conf             86657870244564047876400022044389999999999999999999888853120225578506788999999999


Q ss_pred             HHHHHHCCCEEECCCEEEECCCCCCCCCHHHHHCCC-----CCCCEEEEEEEEECCCCCC--CCCCCCCCCCCCCCCCCC
Q ss_conf             999998894331332022037767801486865414-----6876699996530453000--124555554424568871
Q gi|254780933|r  161 FVVLYKDGLIYRDKRIVNWDPSLKTSVSDLEVIQKE-----VDGNLWYVRYPLVEGVTYR--HPIKFDDDAKPIDWEVRD  233 (947)
Q Consensus       161 F~~L~~~gliy~~~~~v~w~p~~~T~ls~~Ev~~~~-----~~~~~~~ik~~l~~~~~~~--~~~~~~~~~~~~~~~~~~  233 (947)
T Consensus       161 l~~~~eKGL~~~~~kpv~WSp~~~TaLAeaE~ey~~~Y~d~v~dpS~yv~F~~~~~~~~~rh~~~~~~~~-----n~~~~  235 (938)
T TIGR00392       161 LKELHEKGLLYRGLKPVYWSPRCETALAEAEVEYKEEYKDNVKDPSIYVKFPVKKDSKTERHAKVKLSGV-----NGLDI  235 (938)
T ss_pred             HHHHHHCCCEEECCEEECCCCCCCCHHHHHHHCCCCCCCCCCCCCEEEEEEEEECCCHHHHHHHHHCCCC-----CCCCC
T ss_conf             9999752420225522114414467024763058873215760622889875315612567887426875-----78886


Q ss_pred             EEEEEECCCCHHCHHHHHHHHHC----------CH------------------------------------HHHHHCCCE
Q ss_conf             69998267401010244444410----------00------------------------------------123111542
Q gi|254780933|r  234 YIIVSTTRPETMFGDVAIAVHPD----------DY------------------------------------RYKELIGKY  267 (947)
Q Consensus       234 ~l~v~TtrPeTl~g~~a~~v~P~----------d~------------------------------------~y~~l~G~~  267 (947)
T Consensus       236 ~l~iWTTTPWTLPaN~Aiav~pd~eY~~~~~~~~y~g~~~~~i~a~~L~e~l~~~~g~~h~~~~~e~~~~~kG~~Le~l~  315 (938)
T TIGR00392       236 SLVIWTTTPWTLPANLAIAVHPDFEYALVQLETDYSGKEEYLILAKKLVEKLLNKLGVEHDITDYEIIKTFKGSDLEGLE  315 (938)
T ss_pred             EEEEECCCCCHHHHHHHEEECCCEEEEEEEECCCCCCCEEEEEEHHHHHHHHHHHCCCCCCCCCEEEEEEECCCCCCCCE
T ss_conf             89996688714466416011445068999866874663125551256789886421553453110786555164416524


Q ss_pred             EEECCCCCCC--------------------CCC-CCCCCCCCCCCCEEEECCCCCHHHHHHHHHCCC--CCCCEECCCCC
Q ss_conf             3320248657--------------------321-000034212232032124778556566430465--31110167775
Q gi|254780933|r  268 ATLPIVGRLI--------------------PIV-SDVYPDPEFGDGAVKVTPAHDFNDFEIAKRHGL--GFINILTPEAK  324 (947)
Q Consensus       268 ~~~Pl~~~~i--------------------pi~-~~~~V~~~~GTG~V~~~Pah~~~Dy~~~~~~~l--~~~~~~~~~g~  324 (947)
T Consensus       316 Y~hpl~~~~~~~~~m~~~~L~~~~~~~e~~~~v~~gdhVT~~~GTG~VHtAPghG~eDy~~g~kygl~~e~~~pvD~~G~  395 (938)
T TIGR00392       316 YEHPLYDKVSQLKGMVVEELIERVDEKEGAPVVIGGDHVTTEDGTGIVHTAPGHGEEDYEIGKKYGLPDEVLSPVDEKGV  395 (938)
T ss_pred             EECCCCCCCCCCCCCCHHHHHHHHCCCCCCEEEEECCEEECCCCCEEEECCCCCCHHHHHHHHHHCCCCCCCCCCCCCCE
T ss_conf             65266532201156325232231068986448984004546889722687889873289999982898643146687760


Q ss_pred             CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC--HHH-----------HHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCC
Q ss_conf             213665444555434655465553100151--233-----------4488899888876433321022322235666553
Q gi|254780933|r  325 IFLSENESFLENIVLSDEARNIFSEFEGLD--CFA-----------ARSKIVSLLEKSNLLDKTDSYRHIVPHCERSGVT  391 (947)
Q Consensus       325 ~~~~~~~~~~~~~~~~~~~~~~~~~~~G~~--v~~-----------a~~~ii~~L~~~g~l~~~~~~~h~~p~c~R~~~~  391 (947)
T Consensus       396 y~~~~~~~~G~~-----------v~~~d~~yi~~~~R~V~~Ayd~~An~~I~~~L~~~~~Ll~~e~i~H~YPhcWRtk~P  464 (938)
T TIGR00392       396 YTEEVADFKGRF-----------VKDADKDYIIIKGRYVKDAYDDEANKIIIEQLKDKGLLLKAEKITHSYPHCWRTKTP  464 (938)
T ss_pred             ECCCCCCCCCCE-----------EEECCCCEEEECCCEEECHHHHHHHHHHHHHHHHCCCEEEEEEEECCCCCCCCCCCC
T ss_conf             336677744541-----------664487224543741000433468999999984269778876655058770778984


Q ss_pred             EEEEEEHHHEECC--CCCHHHHHHHHHCCCCCEECCCC-CHHHHHHHHCCCCCCCCCCCCCCCCEEEEECCCCCEE--EC
Q ss_conf             2444312221214--54202333432002441121443-1135676410111232123545631026983899887--65
Q gi|254780933|r  392 IEPCITEQWYLDA--KVLAESAIRSAKNGCLSFIPQSW-DKSYYEWLENIQPWCISRQIWWGHQIPVWYSPDGKLF--VE  466 (947)
Q Consensus       392 i~~~~~~QWfi~~--~~~~~~~l~~~~~~~i~~~P~~~-~~~~~~wl~~~~DW~ISRqr~WG~pIPvw~~~~~~~~--v~  466 (947)
T Consensus       465 ~IYRAt~QWF~~~D~~~~k~~~L~~i--~~v~W~P~~~k~~R~~~~~~n~~DWcISRQR~WG~PIP~w~~e~~~~~~l~~  542 (938)
T TIGR00392       465 VIYRATEQWFIKIDEKKIKDQMLEEI--KKVKWVPEWGKEGRFKNWLENRKDWCISRQRYWGVPIPVWYCEDTGEPVLIV  542 (938)
T ss_pred             EEEECCCCCEEECCHHHHHHHHHHHC--CCEEECCCCCCCHHHHHHHHCCCCCEEECCCCCCCCCEEEEECCCCCEEEEE
T ss_conf             57204722146635477789999862--8327614632214678876116765263356258974068866788326776


Q ss_pred             CCCHHHH------HHCCCCCCCCCCCCCCCCCCCCCCCCCCCCEEECCCEECCEEECCCCCCCEECHHHHHHCCCCCCCC
Q ss_conf             7623445------4203455678776555410025688883101882410022020442333201011110001234555
Q gi|254780933|r  467 NTEDAAL------RSAIDYYLSQDNDMTVKVRKMIKDGNISDLLKRDEDVLDTWFSSALWPFASLGWPEQTAELKTYYPT  540 (947)
Q Consensus       467 ~~~~~~~------~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~r~~DvlDtWfdSg~~p~~~l~~p~~~~e~~~~~P~  540 (947)
T Consensus       543 ~gsi~el~~~~~~~~G~~~w~~d~~-~~~~d~~~~~~~~g~~~y~r~~DvlDVWFDSGs~~~A~~~~~~~~~~~~~~~pA  621 (938)
T TIGR00392       543 VGSIEELEELIEVEKGIDAWFEDLH-KDLLDKITLESGSGGGEYRRVPDVLDVWFDSGSMPYAVLHYPFENEKFKEVFPA  621 (938)
T ss_pred             ECCHHHHHHHHHHHHCCCCCCCCCC-CCCCCCCCCCCCCCCCCEEEECEEEEEECCCCHHHHHHHHCCCCCHHHCCCCCC
T ss_conf             0408999999998725663222344-445774134588998425871215545114001179986323210010357830


Q ss_pred             CCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCHHCCCCCCCCHHHHHHHHHCCCCCCHHHHHC--------CCCH
Q ss_conf             30124554321013567776653012113378685200001443100012255431245653023320--------2540
Q gi|254780933|r  541 SVLVTGFDILFFWVARMMMMGLYFMKDAEGKGIEPFHIVYMHALVRDKNGQKMSKSKGNVVDPIDVID--------QYGA  612 (947)
Q Consensus       541 d~~~~G~Di~r~W~~~~l~~~~~l~~~~~~~~~~Pfk~v~~hG~vld~~G~KMSKS~GNvidp~e~i~--------~yGa  612 (947)
T Consensus       622 D~i~EG~DQ~RGWFySsl~~~~~~~n----v~~~PYK~Vi~hGF~LDe~G~KMSKSlGNvV~P~~v~~G~~N~~~P~yGA  697 (938)
T TIGR00392       622 DFILEGSDQTRGWFYSSLLIGVALFN----VGKAPYKNVITHGFTLDEKGRKMSKSLGNVVDPEKVINGDENLKLPKYGA  697 (938)
T ss_pred             EEEEECCCCCCHHHHHHHHHHHHHHC----CCCCCCCEEEECCEEECCCCCCCCCCCCCCCCHHHHCCCCCCCCCCCCCC
T ss_conf             26860335553277999999999870----78854363453154885778544532587038599708843358875330


Q ss_pred             HHHHHHHHCC-CCCCCCCCCCCCCCCCCHH-HHHHHHHHHHHHH--CCCCCCC--CCCCCCCCCCHHHHHHHHHHHHHHH
Q ss_conf             3444543123-3556775434110111000-0123444333320--2444577--6767743331555677999999998
Q gi|254780933|r  613 DALRFYFSIM-AVQGRDINLDLERIAGYRN-FITKFWNAIRFSK--MKNARHS--VSFVPQDVKWIVNKWIIKRLATVIN  686 (947)
Q Consensus       613 DalR~~l~~~-~~~~~D~~fs~~~i~~~r~-f~nKLwNa~rf~~--~~~~~~~--~~~~~~~~~~~~Drwils~l~~~i~  686 (947)
T Consensus       698 D~LRlyv~~~P~~~~~Dl~~~~~~~~~v~~~~~~~~~N~~~Fl~~YanL~~f~p~~~~~~~~~~~~~Drw~L~~l~~l~~  777 (938)
T TIGR00392       698 DILRLYVASSPSDYWEDLRFSDEILKQVAEKYRKIRWNTYRFLLTYANLDKFDPEEKAVAVEKFRELDRWILSRLNSLVE  777 (938)
T ss_pred             HHHHHHHHHCCCCCHHCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHCCCHHHHHHHHHHHHHHH
T ss_conf             48777788468740002200668999999987688999999999988760778730023112030113999999999999


Q ss_pred             HHHHHHHHHCCCHHHHHHHHHHHCCHHHHHHHHHHHHHHCC--CHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHH
Q ss_conf             88998753100102457776531001368898647653056--7144432100014567640345677448999999974
Q gi|254780933|r  687 DVTVGMENHRFNDVSAVLYRFVWDELCDWYVEFIKSILNQK--DSELVSETLSCFSYVLYNVCKLLHPIIPFVTEDLYSH  764 (947)
Q Consensus       687 ~v~~~~e~~~f~~a~~~i~~F~~~~~~~~Yie~~K~~l~~~--~~~~~~~~~~~l~~vl~~~l~ll~P~~PfitEeiw~~  764 (947)
T Consensus       778 ~v~~~~e~Y~f~~~~~~l~~F~~~~LS~wY~~~~rdr~y~~~~~~~~rr~~q~tL~~~l~~l~~~lAP~~Ph~ae~~y~~  857 (938)
T TIGR00392       778 EVNEALEKYNFHKVLRALQDFIVEELSNWYIRIIRDRLYIEAKDNDKRRAAQTTLYYALLTLVKLLAPILPHTAEEIYQN  857 (938)
T ss_pred             HHHHHHHCCCHHHHHHHHHHHHHHHCCHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf             99998626324678888987631200045666654342257898178999999999999999998701157999999864


Q ss_pred             CCCCC-----CCCCCCEEEECCCCCC--CCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEE-EEEECCCHHH
Q ss_conf             35666-----7675653663578787--7477898999999999999999888980899777465-9996499899
Q gi|254780933|r  765 VSPQD-----DMDKQGLLCHAQWPSL--IIDDSESIEEVNWIIDLISKVRSIRTEMNVPLKAVVP-LVFANIDAHV  832 (947)
Q Consensus       765 l~~~~-----~~~~~~si~~~~wP~~--~~~d~~~~~~~~~~~~ii~~iR~~R~~~~i~~k~~i~-i~~~~~~~~~  832 (947)
T Consensus       858 l~~~~~~~l~~~~~~~sv~~~~~~~~~~e~~~~~l~~~~~~~~~~~~~~~~~R~~~~~~l~~p~~e~~I~~~~e~~  933 (938)
T TIGR00392       858 LKGEKPELLKYEEDEESVHLNDWPEVDEEFIDEALEASMAIVREIVEAFLALRDAANKKLRQPLKELVIGKSLEAV  933 (938)
T ss_pred             CCHHHHHHHCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCHHH
T ss_conf             2401022300267877502366766314554478888899999999999998899999999887467303466534