>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=97.79 E-value=0.00012 Score=48.81 Aligned_cols=104 Identities=13% Similarity=0.163 Sum_probs=61.5 Q ss_pred HHHHHHHHHHHHHHCCCEEEECCCCCCHH-----HHHHCCCCHHHHHHHCCHHHCCCCCCEECCCCCCCCCCCHHHCCCC Q ss_conf 99999999999986698897357512468-----9877197311222210402137862000345554310110000134 Q gi|254780870|r 50 LDNVNAIIREEQNRTGAIEMSVPTLQSAD-----LWVESGRYDSYGKEMLRLADRNDKAMIYGPTHEEVMTDIFRSHIKS 124 (449) Q Consensus 50 ~~~le~~~r~~~~~~G~~ei~tP~l~~~e-----L~~~SGh~d~~~~em~~~~d~~~~~~~LrP~~~e~~~~i~~~~~~S 124 (449) T Consensus 3 l~~~~~~i~~~f~~~GF~~~~gp~ie~~~~NFD~Ln~P~dHPaR~~~DTfy~~~--~~~~lLRtHTS~~q~r~l~~~--- 77 (218) T cd00496 3 LNKVIEEIEDIFVSMGFTEVEGPEVETDFYNFDALNIPQDHPARDMQDTFYIND--PARLLLRTHTSAVQARALAKL--- 77 (218) T ss_pred HHHHHHHHHHHHHHCCCEEECCCCCCCCHHHHHHHCCCCCCCCCCCCCEEEECC--CCCCEECCCCCHHHHHHHHHC--- T ss_conf 789999999999877986822895123103045338598875537243278637--766021578756679999745--- Q ss_pred CCCCCEEEEECCCCCCCCCCCCCCCCCCEEEEEEECCEE Q ss_conf 201340264146533456676754345316687404221 Q gi|254780870|r 125 YRNLPFTFYQIQLKFRDELRPRFGVMRSREFLMKDAYSF 163 (449) Q Consensus 125 Yr~LPlr~y~ig~~fR~E~rp~~GL~R~ReF~q~D~~~F 163 (449) T Consensus 78 --~~p~~~~~~G~VyR~D~iDat---H~~~FhQ~Eg~~v 111 (218) T cd00496 78 --KPPIRIFSIGRVYRNDEIDAT---HLPEFHQIEGLVV 111 (218) T ss_pred --CCCCEEEECCCEEECCCCCCC---CCCEEEEEEEEEE T ss_conf --898179942504653889843---1531257637999

HHsearch alignment for GI: 254780870 and conserved domain: cd00496