>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=97.00 E-value=0.00068 Score=49.31 Aligned_cols=175 Identities=23% Similarity=0.250 Sum_probs=99.1 Q ss_pred HHHHHHHHHHHHHCCCEECCCCCCCCC-------------------CCCCHHEEECCCCCCCCCCCCC-CCCCCCCCCCC Q ss_conf 899999999999789889116675667-------------------7871002301434755400588-79999985111 Q gi|254780191|r 5 SSIRTTFLEFFQKNGHELLPSSSLIPC-------------------NDPTLMFTNSGMVPFKNIFTGQ-EKPVYQAVTTV 64 (898) Q Consensus 5 ~eiR~~fl~fF~~~~H~~~~s~slvp~-------------------~d~~llft~Agm~~fk~~f~G~-~~p~~~r~~~~ 64 (898) T Consensus 3 ~~ie~~~r~~~~~~G~~ev~~P~l~~~~~~~~sg~~~~~~~~~~~~~~~~~~L~pt~e~~~~~~~~~~~~dLP-~r~~~~ 81 (211) T cd00768 3 SKIEQKLRRFMAELGFQEVETPIVEREPLLEKAGHEPKDLLPVGAENEEDLYLRPTLEPGLVRLFVSHIRKLP-LRLAEI 81 (211) T ss_pred HHHHHHHHHHHHHCCCEEEECCEECCHHHHHHCCCCHHHHHHHCCCCCCEEEEECCCCHHHHHHHHHHHHHCC-HHHHEE T ss_conf 8999999999998699899998342799997506762223011046797699951684999999752476577-786432 Q ss_pred CCCEECCCCCCCHHHCCCCCCCHHHHHHHHHHHHCCC-----CHHHHHHHHHHHHHHHCCCCHHHEEEEECCCHHHHHHH Q ss_conf 5432248987863434648850017888542231475-----37889998998613341898123799971882899997 Q gi|254780191|r 65 QKCVRAGGKHNDLDNVGRTNRHHTFFEMLGNFSFGGY-----FKERAIQLAWDLLTKEFDLDQRRLYITVYDEDEEAFKL 139 (898) Q Consensus 65 QkCiR~ggkhnDld~VG~t~rH~TfFEMlGn~SfgdY-----fK~eai~~awe~lt~~~~l~~~~l~vtv~~~D~e~~~i 139 (898) T Consensus 82 ~~~fR~E-----~~~~Gl--~RvreF~~~e~~~f~~~~~~~~~~~~~~~~~~~i~~~-lgl~~~~--------------- 138 (211) T cd00768 82 GPAFRNE-----GGRRGL--RRVREFTQLEGEVFGEDGEEASEFEELIELTEELLRA-LGIKLDI--------------- 138 (211) T ss_pred CCEECCC-----CCCCCC--CCCCCEEEEEEEEEECCHHHHHHHHHHHHHHHHHHHH-CCCCCCE--------------- T ss_conf 0056057-----888884--4604688984799988488899999999999999997-4998886--------------- Q ss_pred HHHHCCCCHHHEEECCCCCCCCCCCCCCCCCCCEEEEEECCCCCCCCCCCCCCCCCCEEEEEEHHHHHHHC--------- Q ss_conf 56634999899753578666545799999877046788538556898887778898268960011234430--------- Q gi|254780191|r 140 WKKISGLSADKIIRITTNDNFWSMAETGPCGPCSEIFFDQGECIPGGLPGSSEEGERYIEIWNLVFMQFEQ--------- 210 (898) Q Consensus 140 W~~~~gi~~~~i~~~~~~dNfW~~g~~GpcGPcsEi~~d~g~~~~~~~~~~~~~~~r~lEiwNlVFmq~~~--------- 210 (898) T Consensus 139 -----------~~~~~~~~~~~----~~~a~~~~Die~~~p-------------~~~~~Ev~s~~~~~d~qsr~~~i~y~ 190 (211) T cd00768 139 -----------VFVEKTPGEFS----PGGAGPGFEIEVDHP-------------EGRGLEIGSGGYRQDEQARAADLYFL 190 (211) T ss_pred -----------EEEEECCCCCC----CCCCEEEEEEEEECC-------------CCCEEEEECEECCCCHHHHHCCCEEE T ss_conf -----------99997786766----645235455789837-------------89799993546167787884698999 Q ss_pred CCCCCCCCCCCCCCCCCCCHHHH Q ss_conf 47887565766531017579999 Q gi|254780191|r 211 QNKQERFILPKMSIDTGMGLERM 233 (898) Q Consensus 211 ~~~g~~~~Lp~~~IDTGmGLERl 233 (898) T Consensus 191 ~~dg~~~~~~~~--~~gl~v~Rl 211 (211) T cd00768 191 DEALEYRYPPTI--GFGLGLERL 211 (211) T ss_pred CCCCCEEEEEEE--ECEECCCCC T ss_conf 999999875563--032413669

HHsearch alignment for GI: 254780191 and conserved domain: cd00768