HHsearch alignment for GI: 254780949 and conserved domain: cd00668
>cd00668 Ile_Leu_Val_MetRS_core This is the catalytic core domain of isoleucyl, leucyl, valyl and methioninyl tRNA synthetases. These class I enzymes are all monomers. However, in some species, MetRS functions as a homodimer, as a result of an additional C-terminal domain. These enzymes aminoacylate the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. Enzymes in this subfamily share an insertion in the core domain, which is subject to both deletions and rearrangements. This editing region hydrolyzes mischarged cognate tRNAs and thus prevents the incorporation of chemically similar amino acids. MetRS has a significantly shorter insertion, which lacks the editing function.
Probab=98.61 E-value=2.2e-07 Score=69.03 Aligned_cols=77 Identities=18% Similarity=0.060 Sum_probs=48.8
Q ss_pred HHCCCCEECCCCHHHHHHHH-HHHHHHHCCCC--CEEEEEECEEECCCCHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHC
Q ss_conf 54297020154125889988-89999731679--7179831102368710223543101233345799799999886207
Q gi|254780949|r 189 KNYDCRLQMGGSDQWGNIIC-GIDLGERLKTP--KLFALTSPLLTTASGTKMGKTLSGAIWLNKEMTSPYNFWQYWRNID 265 (418)
Q Consensus 189 ~~~~~~iqiGGsDQwgNi~~-G~eLir~~~~~--~~~glT~PLLt~~dG~KmgKS~~naIwLd~~~tSPy~fyQf~~n~~ 265 (418)
T Consensus 245 ~~~~~di~~~G~D~~~~h~~~~~a~~~a~~~~~~~~~~~~~g~~~~~~G~KMSKS~GN~i~~~~~----l~-------~~ 313 (334)
T cd00668 245 YWYPADLHVIGKDIIRFHLIYWPAMLLALFGKPPPKNVLVHGLVLDEGGRKMSKSLGNVVDPLDA----IE-------KY 313 (334)
T ss_pred CCCCEEEEEECCCHHHHHHHHHHHHHHHCCCCCCHHHEEECCCEECCCCCCCCCCCCCCCCHHHH----HH-------HC
T ss_conf 17981698715613632999999999984498508775742019838995738869988898999----98-------75
Q ss_pred HHHHHHHHHHH
Q ss_conf 88898799750
Q gi|254780949|r 266 DADVVSFAKRL 276 (418)
Q Consensus 266 D~dV~kyLklf 276 (418)
T Consensus 314 g~D~lR~~l~~ 324 (334)
T cd00668 314 GADALRYYLLS 324 (334)
T ss_pred CCHHHHHHHHH
T ss_conf 94899999994