>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=100.00 E-value=0 Score=391.43 Aligned_cols=205 Identities=25% Similarity=0.399 Sum_probs=187.2 Q ss_pred HHHHHHHHHHHHHHCCCCEEHHHHHCCHHHHHHHHHCHHHHHHHHHHH-HCCEECCCCCCHHHHHHHHHCCCHHHHCCEE Q ss_conf 999999998622320320212356202788986551422476776431-0002313454114544534205955504208 Q gi|254780680|r 176 RALGQFMIDLHTSEHGYTEVSAPLLVRDEAMYGTGQIPKFADDMFCTT-DGRWLIPTSEVSLTNLYSHEIIESKSLPLRF 254 (430) Q Consensus 176 ~ALi~y~ld~~~~~~Gy~~v~~P~lv~~~~~~gtG~lp~f~~~~y~~~-d~l~Li~TaEvpL~~~~~~~~l~~~~LPik~ 254 (430) T Consensus 3 ~~ie~~~r~-~~~~~G~~ev~~P~l~~~~~~~~sg~~~~~~~~~~~~~~~~~~L~pt~e~~~~~~~~~~~---~dLP~r~ 78 (211) T cd00768 3 SKIEQKLRR-FMAELGFQEVETPIVEREPLLEKAGHEPKDLLPVGAENEEDLYLRPTLEPGLVRLFVSHI---RKLPLRL 78 (211) T ss_pred HHHHHHHHH-HHHHCCCEEEECCEECCHHHHHHCCCCHHHHHHHCCCCCCEEEEECCCCHHHHHHHHHHH---HHCCHHH T ss_conf 899999999-999869989999834279999750676222301104679769995168499999975247---6577786 Q ss_pred EEEECCCCCCCCCCCCCCCCEEEEEEEEEEEEEECCCCCCHHHHHHHHHHHHHHHHHHHCCH--HHHCCCCCHHCCCH-H Q ss_conf 85322107884335543432122221020021212786501457898999999999984106--75303780117844-3 Q gi|254780680|r 255 TTLAPSFRSEAGSAGRDTRGMLRQHQFWKCELVSITREEDSFTEHERMLSCAEEILKRLDLH--YRVVSLCTGDLGFS-A 331 (430) Q Consensus 255 ~~~s~cfR~EaGs~GkdtrGl~RvHQF~KVE~~~~~~pe~S~~~~e~~~~~~~~i~~~L~lp--yRvv~~~sgdlg~~-a 331 (430) T Consensus 79 ~~~~~~fR~E~~~-----~Gl~RvreF~~~e~~~f~~~~~~~~~~~~~~~~~~~i~~~lgl~~~~~~~~~~~~~~~~~~a 153 (211) T cd00768 79 AEIGPAFRNEGGR-----RGLRRVREFTQLEGEVFGEDGEEASEFEELIELTEELLRALGIKLDIVFVEKTPGEFSPGGA 153 (211) T ss_pred HEECCEECCCCCC-----CCCCCCCCEEEEEEEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCEEEEEECCCCCCCCCC T ss_conf 4320056057888-----88446046889847999884888999999999999999974998886999977867666452 Q ss_pred HEEEEEEEECCCCCCEEEEEEECCCCCHHHHHCCCEEECCCCCCCCEEEEECCCHHHHHHH Q ss_conf 4024101101004833237531021007645326847338998410104200432289999 Q gi|254780680|r 332 CKTYDLEVWLAGQNLYREISSCSTCGNFQSRRMNSRYRDPNSKSLKFTHTLNGSGVAVGRC 392 (430) Q Consensus 332 ~~~~DiE~w~P~~~~y~Ev~S~Snc~D~QsrRl~iry~~~~~~~~~~~htlNgt~~A~~R~ 392 (430) T Consensus 154 ~~~~Die~~~p-~~~~~Ev~s~~~~~d~qsr~~~i~y~~~dg~-~~~~~~~-~~gl~v~Rl 211 (211) T cd00768 154 GPGFEIEVDHP-EGRGLEIGSGGYRQDEQARAADLYFLDEALE-YRYPPTI-GFGLGLERL 211 (211) T ss_pred EEEEEEEEECC-CCCEEEEECEECCCCHHHHHCCCEEECCCCC-EEEEEEE-ECEECCCCC T ss_conf 35455789837-8979999354616778788469899999999-9875563-032413669

HHsearch alignment for GI: 254780680 and conserved domain: cd00768