>cd00496 PheRS_alpha_core Phenylalanyl-tRNA synthetase (PheRS) alpha chain catalytic core domain. PheRS belongs to class II aminoacyl-tRNA synthetases (aaRS) based upon its structure and the presence of three characteristic sequence motifs. This domain is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. While class II aaRSs generally aminoacylate the 3'-OH 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. PheRS is an alpha-2/ beta-2 tetramer.

Probab=99.57 E-value=2.8e-14 Score=104.01 Aligned_cols=112 Identities=24% Similarity=0.381 Sum_probs=69.3 Q ss_pred HHHHHHHHHHHHHCCCEEEECCCEECCCCC-CC------C-CCCEEEECCCCCCCCCC--CCC--CCCHHHHHHHHHHH- Q ss_conf 999999999999879889847821056898-54------4-54124102478867832--000--02858999989874- Q gi|254781066|r 26 NMIQSSLREYFVENQFIEIDSMSLQYSPGN-ET------H-IRAFSTELIIQDHIRKP--LYL--QTSPEFSCKKLLAA- 92 (355) Q Consensus 26 s~i~~~iR~ff~~~gF~EV~TPiL~~~~~g-~~------~-~~~f~t~~~~~~~~~~~--~yL--~~SPql~lK~ll~~- 92 (355) T Consensus 4 ~~~~~~i~~~f~~~GF~~~~gp~ie~~~~NFD~Ln~P~dHPaR~~~-DTf---y~~~~~~~lLRtHTS~~q~--r~l~~~ 77 (218) T cd00496 4 NKVIEEIEDIFVSMGFTEVEGPEVETDFYNFDALNIPQDHPARDMQ-DTF---YINDPARLLLRTHTSAVQA--RALAKL 77 (218) T ss_pred HHHHHHHHHHHHHCCCEEECCCCCCCCHHHHHHHCCCCCCCCCCCC-CEE---EECCCCCCEECCCCCHHHH--HHHHHC T ss_conf 8999999999987798682289512310304533859887553724-327---8637766021578756679--999745 Q ss_pred -HHHHHHHHHHHHCCCCCCCCCCCCEEEECEEECCC--CHHHHHHHHHHHHHHH Q ss_conf -46889998864245677754484300200011577--6578777557888776 Q gi|254781066|r 93 -GEEKIFCFAHAWRNGEQGCLHQPEFTMLEWYRAHE--SYEQLMKDCMNIIRCA 143 (355) Q Consensus 93 -G~~rvyqig~~FRaE~~~~rHlpEFtmLE~e~af~--d~~dlm~~~E~li~~~ 143 (355) T Consensus 78 ~~p~~~~~~G~VyR~D~iDatH~~~FhQ~Eg~~v~~~~~~~~Lk~~l~~~~~~l 131 (218) T cd00496 78 KPPIRIFSIGRVYRNDEIDATHLPEFHQIEGLVVDKGLTFADLKGTLEEFAKEL 131 (218) T ss_pred CCCCEEEECCCEEECCCCCCCCCCEEEEEEEEEEECCCCHHHHHHHHHHHHHHH T ss_conf 898179942504653889843153125763799956511999999999999997

HHsearch alignment for GI: 254781066 and conserved domain: cd00496