>cd00768 class_II_aaRS-like_core Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA synthetases (aaRS) share a common fold and generally attach an amino acid to the 3' OH of ribose of the appropriate tRNA. PheRS is an exception in that it attaches the amino acid at the 2'-OH group, like class I aaRSs. These enzymes are usually homodimers. This domain is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. The substrate specificity of this reaction is further determined by additional domains. Intererestingly, this domain is also found is asparagine synthase A (AsnA), in the accessory subunit of mitochondrial polymerase gamma and in the bacterial ATP phosphoribosyltransferase regulatory subunit HisZ.

Probab=99.16 E-value=1.8e-09 Score=90.30 Aligned_cols=191 Identities=16% Similarity=0.242 Sum_probs=130.8 Q ss_pred HHHHHHHHHHHHHHCCCEEECCCEEECHHHHHHHHCCCCCCCCCCCCCEEEEECCCCCCCCCCCCCCCCHHHHHHHH--C Q ss_conf 99999999999987398762372341588988861898877331633127750566655632244676305555430--3 Q gi|254780317|r 118 VTQVIDEVTCIFMDMGFALEEGSDIETDYYNFAALNFPDDHPARQMHDTFFVPGIAGGKHKLLRTHTSPVQIRVMES--Q 195 (366) Q Consensus 118 Itqvi~eI~~IF~~lGF~v~eGPEIEtd~~NFdaLNiP~~HPARdmqDTFyl~~~~~~~~~lLRthTS~vQiR~m~~--~ 195 (366) T Consensus 2 r~~ie~~~r~~~~~~G~~ev~~P~l~~~~~~~~sg~----~~~-~~-~~~~~---~~~~~~~L~pt~e~~~~~~~~~~~~ 72 (211) T cd00768 2 RSKIEQKLRRFMAELGFQEVETPIVEREPLLEKAGH----EPK-DL-LPVGA---ENEEDLYLRPTLEPGLVRLFVSHIR 72 (211) T ss_pred HHHHHHHHHHHHHHCCCEEEECCEECCHHHHHHCCC----CHH-HH-HHHCC---CCCCEEEEECCCCHHHHHHHHHHHH T ss_conf 789999999999986998999983427999975067----622-23-01104---6797699951684999999752476 Q ss_pred CCEEEEEECCCCCCCCC-CC--CCCCCCCCCCEEEECCCC----CHHHHHHHHHHHHHHHCCCCCCEEEEEECCCCCCCC Q ss_conf 63122541057647454-42--137810020057861786----689998899999999708886626454238898526 Q gi|254780317|r 196 DLPIKVIVPGKTYRRDS-DS--THSPMFHQIEGLVVSDSA----TIANLRWVLESFCKSFFEVSSLQMRFRPSFFPFTEP 268 (366) Q Consensus 196 ~pP~~~~~~GrvyR~d~-D~--tH~~~FhQ~egl~v~~~i----~~~~lk~~l~~~~~~~fg~~~~~~r~rp~~fPfteP 268 (366) T Consensus 73 dLP~r~~~~~~~fR~E~~~~Gl~RvreF~~~e~~~f~~~~~~~~~~~~~~~~~~~i~~~l-gl~~~~~~~~~~~~~~~~~ 151 (211) T cd00768 73 KLPLRLAEIGPAFRNEGGRRGLRRVREFTQLEGEVFGEDGEEASEFEELIELTEELLRAL-GIKLDIVFVEKTPGEFSPG 151 (211) T ss_pred HCCHHHHEECCEECCCCCCCCCCCCCCEEEEEEEEEECCHHHHHHHHHHHHHHHHHHHHC-CCCCCEEEEEECCCCCCCC T ss_conf 577786432005605788888446046889847999884888999999999999999974-9988869999778676664 Q ss_pred --CCEEEEEEECCCCEEEECCCCCEEEEECCCCCCHHHHHHCCCC---C-----CCEEEEEEECCHHHH Q ss_conf --6103678750588042246883489845756388899856988---0-----003799631344699 Q gi|254780317|r 269 --SFEVDVRCSFSDGIIKFDEGTEWMEILGCGMVDPRVLRGVGID---P-----DIYQGFAWGMGLDRI 327 (366) Q Consensus 269 --s~Evdv~~~~~~~~~~~~~~~~WiEi~g~Gm~~p~vl~~~g~d---~-----~~~~g~AfG~G~eRl 327 (366) T Consensus 152 ~a~~~~Die~~~p~--------~~~~Ev~s~~~~~d~qsr~~~i~y~~~dg~~~~~~~-~~~gl~v~Rl 211 (211) T cd00768 152 GAGPGFEIEVDHPE--------GRGLEIGSGGYRQDEQARAADLYFLDEALEYRYPPT-IGFGLGLERL 211 (211) T ss_pred CCEEEEEEEEECCC--------CCEEEEECEECCCCHHHHHCCCEEECCCCCEEEEEE-EECEECCCCC T ss_conf 52354557898378--------979999354616778788469899999999987556-3032413669

HHsearch alignment for GI: 254780317 and conserved domain: cd00768