>cd00812 LeuRS_core This is the catalytic core domain of leucyl tRNA synthetase (LeuRS). This class I enzyme is a monomer, which aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate 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. In Aquifex aeolicus, the gene encoding LeuRS is split in two, just before the KMSKS motif. Consequently, LeuRS is a heterodimer, which likely superimposes with the LeuRS monomer found in most other organisms. LeuRS has an insertion in the core domain, which is subject to both deletions and rearrangements and thus differs between prokaryotic LeuRS and archaeal/eukaryotic LeuRS. This editing region hydrolyzes mischarged cognate tRNAs and thus prevents the incorporation of chemically similar amino acids.

Probab=99.60 E-value=9.6e-14 Score=115.37 Aligned_cols=277 Identities=22% Similarity=0.315 Sum_probs=138.1 Q ss_pred CCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCEEECCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCHHHCCCC Q ss_conf 02234432244117777785689999999985066641020147753145556789875322210245000660110241 Q gi|254780285|r 125 IEFVSANPTGPMHVGHCRCAVVGDTLASLMAFSGYEVTREYYINDAGAQINTLALSVFWRYQQALYNNDSDLPEGYYPGV 204 (586) Q Consensus 125 VE~sSpNp~KplHVGHlRsaiIGdsi~ril~~~G~~V~r~nyvgD~G~Q~~~li~~~~~~~~~~~~~~~~~~~e~~~~~~ 204 (586) T Consensus 4 ITta~PY~NG~~HiGH~~~~i~aDi~~Ry~Rm~G~~V~~~~G~DeHG~pI~~~A~~~--g------~~~~~~~~-~~~~~ 74 (376) T cd00812 4 ILVMFPYPSGRLHVGHVRTYTIGDIIARYKRMKGYNVLFPMGFDAFGLPAENAADKI--G------REDEDTIE-PYRDV 74 (376) T ss_pred EEECCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHH--C------CCHHHHHH-HHHHC T ss_conf 985898889745468869899999999999955997046884565678999999996--8------74776530-11110 Q ss_pred CHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEECH-HHHHHCCHHHHHHHHHHHHHC Q ss_conf 0000127888887576413430237999999978998875455588708752100015-887301045799999999974 Q gi|254780285|r 205 YLKHVGKELADKYSSELLNFPEEKWLPIVKDYSVQAMMKIIRDDLKALNIQHDIFISE-DDFHRGDPSPIRDIIDNLARQ 283 (586) Q Consensus 205 y~~~~~~e~~~~~~~~~~~~~e~~~~~~~~~~~~~~~~~~~~~~l~~l~i~fD~~~~E-s~~~~~~~~~i~~~i~~l~~~ 283 (586) T Consensus 75 ~-------~~~---~~~~~~~~---p---~~~-~~~~~~~~~~~~~~lg~~~D-~~~~~~T~~~~~~~~vq~~f~~L~~~ 136 (376) T cd00812 75 G-------VPD---EEIEKFAD---P---KYW-TEYFIAKMKEQLKRMGFSID-WRREFTTTDPEYYKFTQWQFLKLKEK 136 (376) T ss_pred C-------HHH---HHHHCCCC---H---HHH-HHHHHHHHHHHHHHHCCCCC-CCCCEECCCHHHHHHHHHHHHHHHHC T ss_conf 0-------018---87861279---9---999-99999999999998098737-68664337778999999999999988 Q ss_pred CCCCCCCCCCCCCCCCCCCCC--------------CCCCEEEEHHH------CCCCCCCCC--CCCCCCH---------- Q ss_conf 985113426755565420002--------------47815651011------022222221--0246521---------- Q gi|254780285|r 284 GYVYEGILPPPKSKTTQKCDM--------------DRKQLLFRSTM------VGDDVDRPL--LKSDGSY---------- 331 (586) Q Consensus 284 g~~~e~~~~~~~~~~~~~~~~--------------~~~~~~~~~~~------~g~~~d~vl--~rsDGt~---------- 331 (586) T Consensus 137 G~iy~~~~~~~y~~~~~~~f~~~~~~~~~~~~~~~~~~~~~p~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l~dw~is 216 (376) T cd00812 137 GLIYKGEAPVNWCKLLDQWFLKYSTEWAERLLKDLEGLDTWPEEVKNMQENWIGWLKGWACARRYGLGTVLPWDRDWLIE 216 (376) T ss_pred CCEEECCCEECCCCCCCEEEECCCHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCCCC T ss_conf 98895175553646776057416678899987404204678688999999987302465254111115406555443413 Q ss_pred ------HHHH-------------------------------------HHHHHHHHH----------HHCCCCCCCCCCCC Q ss_conf ------3568-------------------------------------889999997----------52255543336777 Q gi|254780285|r 332 ------TYFA-------------------------------------ADLAYFKCK----------YERGFDNMIYVMGS 358 (586) Q Consensus 332 ------~Y~t-------------------------------------~DiA~~~~k----------~e~~~d~~iyVv~~ 358 (586) T Consensus 217 r~~~~~~~wg~~ip~~~~~~~~~~~~~~~~~~~~~~~~~~~w~~~~w~~~~~~~~~~~~~~~~~~~~~~~~p~d~~~~Gk 296 (376) T cd00812 217 RLRDSTIYWGYYTPAHHCEKCGPVCPKCGKPAKRETDTMDEFFDSSWYYLRYLDPKNSEAPFDREEFEYWYPVDLYIGGK 296 (376) T ss_pred CCCCCCCCCCEEEEEEECCCCCEECCCCCCCCCCCCCCCCCEEEEEECCCCCCCCCCCCCCCCHHHHHHHCCCCEEEECC T ss_conf 44456666770021597567864146667555665446886577630146667843344766879998428860688133 Q ss_pred CHH-HHH--HHHH-HHHHHHCCCCCCCEEEECCHHHCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCH Q ss_conf 613-689--9999-9999722663451153110110122110000012233024567777763211234555420001 Q gi|254780285|r 359 DHS-GYV--KRLE-AVAAAVSEKKAQINVLLCELVRLYRDGMPIKMSKRAGDFITLRHVVDEVGSDSVRFMMLWRKNS 432 (586) Q Consensus 359 ~Q~-~h~--~~v~-~~~~~lg~~~~~~~~~~~~~v~l~~dg~~~kmstR~G~~v~l~dll~evg~~aiky~~L~~~~~ 432 (586) T Consensus 297 Dii~fH~~~~~~~~~~l~~~~~~~~p~~v~~hG~l~~--~G~--KMSKS~Gn~v~p~~~l~~yg~D~lR~~Ll~~~p~ 370 (376) T cd00812 297 EHAVNHLLYSRFNHKALFDEGTKEPPKGLRVQGMVLL--EGE--KMSKSKGNVVTPDEAIKKYGADATRLYLLFAAPP 370 (376) T ss_pred CCCCHHHHHHHHHHHHHHHCCCCCCCCEEEECCCEEC--CCE--ECCCCCCCCCCHHHHHHHCCCHHHHHHHHHCCCC T ss_conf 5420136799999999986467779826687572966--996--6377899884989999885954999999944995

HHsearch alignment for GI: 254780285 and conserved domain: cd00812