>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=100.00 E-value=0 Score=591.14 Aligned_cols=206 Identities=51% Similarity=0.858 Sum_probs=199.7 Q ss_pred CEEEECCCCCCCCCCHHHHHHHHHHHHHHHHCCCEEEEEECCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCE Q ss_conf 70563484338878501599999999999971884999970486663886799999999886589888676558876763 Q gi|255764513|r 6 KVRVRIAPSPTGEPHIGTAYTALFNYLIAKRTGGKFILRIEDTDSKRSTLESENAVMQSLKWCGLNWDEGPDIGGAYGPY 85 (492) Q Consensus 6 ~v~~RfaPsPtG~lH~G~~rtal~n~l~a~~~~g~f~lRieDtd~~R~~~~~~~~i~~~l~wlgl~~De~~~~~g~~~p~ 85 (492) T Consensus 1 ~V~tRFAPsPtG~LHiG~ar~al~n~~~Ak~~~G~~~LRieDTD~~r~~~e~~~~I~~dL~wLGl~~d~--------~~~ 72 (223) T cd00418 1 KVRTRFAPSPTGYLHIGHARAALLNYLYAKKYGGKFILRFDDTDPEREVEEAEDSILEDLKWLGIKWDE--------GPY 72 (223) T ss_pred CCEEEECCCCCCCCCHHHHHHHHHHHHHHHHHCCEEEEEECCCCCCCCHHHHHHHHHHHHHHHCCCCCC--------CEE T ss_conf 921870889898542899999999999999859989997236886401888999999999991899998--------685 Q ss_pred ECCCCHHHHHHHHHHHHHCCCEEECCCCHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHCCCCCEEEEEECCCC Q ss_conf 23262899999999999889824514889997766887664310002366555788333001120257740788622431 Q gi|255764513|r 86 RQSERKNIYQPYVQNLLEKKLAFRCFCSTERLEEMRRAQRKRNIPSRYDGHCLKLSSQEIERLSQEQKKHVVRLTVPNQG 165 (492) Q Consensus 86 ~QS~r~~~y~~~~~~L~~~g~aY~c~~t~eel~~~r~~~~~~~~~~~Y~~~~r~l~~~e~~~~~~~g~~~~iR~k~p~~~ 165 (492) T Consensus 73 ~QS~r~~~y~~~~~~Li~~G------------------------------------------------------------ 92 (223) T cd00418 73 YQSDRFDIYYEYAEKLIEEG------------------------------------------------------------ 92 (223) T ss_pred EHHHHHHHHHHHHHHHHHCC------------------------------------------------------------ T ss_conf 38758999999999997569------------------------------------------------------------ Q ss_pred EEECCCCCCCCEECCCCCCCCCCEECCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHCCCHHHHHH Q ss_conf 14304751340213643235641000453248986788764444444311223543024788999998510000010145 Q gi|255764513|r 166 SCVFQDKVYGEMEIPWNAVDMQVLLKSDGMPTYHLANVIDDHLMKITHVARGEEWISSVPKHILLYQYFNFPIPEFIHLP 245 (492) Q Consensus 166 ~~~~~D~i~G~~~~~~~~~~D~vi~r~dg~ptY~~a~vvDD~~m~ithviRg~d~~~~t~~q~~l~~al~~~~p~f~H~p 245 (492) T Consensus 93 ----------------------------~~PtY~fa~vVDD~~~gITHViRG~D~~~~t~~q~~l~~aLg~~~P~~~H~p 144 (223) T cd00418 93 ----------------------------GYPTYDFAVVVDDHLMGITHVLRGEEHLDNTPKQIWLYEALGWEPPVFAHFG 144 (223) T ss_pred ----------------------------CCCCEEEEEEECCCCCCCCEEECCHHHHHCCHHHHHHHHHCCCCCCEEEEEC T ss_conf ----------------------------9814010258537657887565462776467999999997099997289862 Q ss_pred HHHHHHCCCCCCCCCC----------------CCHHHHHHCCCCHHHHHHHHHHCCCCCCCCCHHHCCHHHHHHHHHHHH Q ss_conf 5531101322122343----------------302456662977377998998506766655301101467776520211 Q gi|255764513|r 246 LIKNPDKSKLSKRRNP----------------TSISYYSAMGYLPEALINFLALLFVHKSEDDDELMDMQQLIHHFDLHH 309 (492) Q Consensus 246 li~~~~g~klSKR~~~----------------~~i~~~~~~GylPeAilNyLalLGws~~~~d~Eifsl~eli~~FdL~~ 309 (492) T Consensus 145 ~l~~~~g~kLSKR~~~~~i~~~~~~gwdDprl~tl~~~r~~G~~peai~n~~~~lG~s~--------------------- 203 (223) T cd00418 145 RLNNEDGTKLSKRKLKKLVEEGIVEGWDDPRLPTLRGLRRRGYLPEALRNFIALLGWSK--------------------- 203 (223) T ss_pred CEECCCCCCCCCCCHHHCCCCCCCCCCCCCCCHHHHHHHHCCCCHHHHHHHHHHHCCCC--------------------- T ss_conf 07658887140200021045577678878871039999986998999999999958998--------------------- Q ss_pred CCCCCCCCHHHHHHHHHHHHHH Q ss_conf 3755442015655664355551 Q gi|255764513|r 310 LSKAGAVFDKQKLDWLNGRWIR 331 (492) Q Consensus 310 I~Ks~A~FD~eKL~wlN~qyIr 331 (492) T Consensus 204 ---~~~~~~~~~l~~~nr~~i~ 222 (223) T cd00418 204 ---SDATFDWEKLEALNRKYLD 222 (223) T ss_pred ---CCCEECHHHHHHHHHHHCC T ss_conf ---7874669999999887559

HHsearch alignment for GI: 255764513 and conserved domain: cd00418