>cd00418 GlxRS_core Glutamyl-tRNA synthetase(GluRS)/Glutaminyl-tRNA synthetase (GlnRS) cataytic core domain. These enzymes attach Glu or Gln, respectively, to the appropriate tRNA. Like other class I tRNA synthetases, they aminoacylate the 2'-OH of the nucleotide at the 3' end of the tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. These enzymes function as monomers. Archaea, cellular organelles, and some bacteria lack GlnRS. In these cases, the "non-descriminating" form of GluRS aminoacylates both tRNA(Glu) and tRNA(Gln) with Glu, which is converted to Gln when appropriate by a transamidation enzyme. The descriminating form of GluRS differs from GlnRS and the non-descriminating form of GluRS in their C-terminal anti-codon binding domains.

Probab=99.20 E-value=7.2e-10 Score=90.88 Aligned_cols=194 Identities=19% Similarity=0.287 Sum_probs=135.1 Q ss_pred ECCCCCCCCCCCCCHHHHHHHHHHHHHHHHCCCCCEEEEECCCCCCHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHH Q ss_conf 16788884441112799999999999997079984579960552338889999870898644884899999999999998 Q gi|254780573|r 31 CGPTVYDFAHIGNARPMIVFDVLYRLLRYYYGEKCVTYVRNITDIDDKIIERARQEHPSIPINDAISIITSKNTQQFVKD 110 (461) Q Consensus 31 CGpTvy~~~HiG~~r~~v~~D~l~R~L~~~~~~~~V~~v~niTDidDkii~~a~~~~~~~~~~~~~~~~a~~~~~~f~~d 110 (461) T Consensus 6 FAPsPtG~LHiG~ar~al~n~~~Ak~---~~G----~~~LRieDTD~---~r~----------------~~e~~~~I~~d 59 (223) T cd00418 6 FAPSPTGYLHIGHARAALLNYLYAKK---YGG----KFILRFDDTDP---ERE----------------VEEAEDSILED 59 (223) T ss_pred ECCCCCCCCCHHHHHHHHHHHHHHHH---HCC----EEEEEECCCCC---CCC----------------HHHHHHHHHHH T ss_conf 08898985428999999999999998---599----89997236886---401----------------88899999999 Q ss_pred HHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCEEECCHHCCCCCCCCCCCHHHHHHHHHCCCCCCCCCCCC Q ss_conf 77626854100012356777789999987411432012892875220024543224675466664321022221012351 Q gi|254780573|r 111 TTRLACLAPTHQPRATNHIPQMIYLIQNIILHGHAYEANNEIIFDTSSIPNYGSFSRRKIDEQKMGTRVPEKYHKKNPAD 190 (461) Q Consensus 111 ~~~L~v~~p~~~pr~t~~i~~~i~~i~~L~~~g~aY~~~g~VyFdv~~~~~YG~Ls~~~~~~~~~g~r~~~~~~K~~p~D 190 (461) T Consensus 60 L~wLGl~~d~~~~~QS~r~~~y~~~~~~Li~~G----------------------------------------------- 92 (223) T cd00418 60 LKWLGIKWDEGPYYQSDRFDIYYEYAEKLIEEG----------------------------------------------- 92 (223) T ss_pred HHHHCCCCCCCEEEHHHHHHHHHHHHHHHHHCC----------------------------------------------- T ss_conf 999189999868538758999999999997569----------------------------------------------- Q ss_pred EEEEECCCCCCCEEECCCCCCCCCCCCHHHHHHHHHCCCCEEEEEECCCCCCCCCHHHHHHHHHHCCCCCCHHHEECCCE Q ss_conf 26663377666314146776676433204777787529841487413566668751366888864087530121003432 Q gi|254780573|r 191 FILWKRSTPMEPGWESPWGRGRPGWHIECSAMSSHYLGKVFDIHGGGLDLIFPHHENEIAQSCCADRIEKTANIWIHNGF 270 (461) Q Consensus 191 FaLWK~~~~~e~~w~spwG~GRPGWHiECsam~~~~lg~~~DIH~GG~DL~FPHHENEiAQs~a~~~~~~~a~yWlH~G~ 270 (461) T Consensus 93 --------------------~~PtY~fa~v-VDD~~~g--ITHViRG~D~-~~~t~~q~~l~~aLg~~~P---~~~H~p~ 145 (223) T cd00418 93 --------------------GYPTYDFAVV-VDDHLMG--ITHVLRGEEH-LDNTPKQIWLYEALGWEPP---VFAHFGR 145 (223) T ss_pred --------------------CCCCEEEEEE-ECCCCCC--CCEEECCHHH-HHCCHHHHHHHHHCCCCCC---EEEEECC T ss_conf --------------------9814010258-5376578--8756546277-6467999999997099997---2898620 Q ss_pred EEEE-ECCCCCCCCC---------------CCCHHHHHCCCCCCCCCCCHHHHHHHHHCCCCCC-CCCCCHHHHHHH Q ss_conf 5764-2022332332---------------1408998502533455777999999984256643-211450346877 Q gi|254780573|r 271 LNLE-GRKMSKSNGN---------------FITINELLETKKFGGRSWPAPVIRLAMLMTHYRE-PIDFTVQRLTEA 330 (461) Q Consensus 271 l~i~-geKMSKSlGN---------------~iti~dlL~~~~~~~k~y~p~viR~~lLsshYRs-pLdfS~e~L~~A 330 (461) T Consensus 146 l~~~~g~kLSKR~~~~~i~~~~~~gwdDprl~tl~~~r~------~G~~peai~n~~~~lG~s~~~~~~~~~~l~~~ 216 (223) T cd00418 146 LNNEDGTKLSKRKLKKLVEEGIVEGWDDPRLPTLRGLRR------RGYLPEALRNFIALLGWSKSDATFDWEKLEAL 216 (223) T ss_pred EECCCCCCCCCCCHHHCCCCCCCCCCCCCCCHHHHHHHH------CCCCHHHHHHHHHHHCCCCCCCEECHHHHHHH T ss_conf 765888714020002104557767887887103999998------69989999999999589987874669999999

HHsearch alignment for GI: 254780573 and conserved domain: cd00418