HHsearch alignment for GI: 254780949 and conserved domain: TIGR00422

>TIGR00422 valS valyl-tRNA synthetase; InterPro: IPR002303 The aminoacyl-tRNA synthetases (6.1.1. from EC) catalyse the attachment of an amino acid to its cognate transfer RNA molecule in a highly specific two-step reaction. These proteins differ widely in size and oligomeric state, and have limited sequence homology . The 20 aminoacyl-tRNA synthetases are divided into two classes, I and II. Class I aminoacyl-tRNA synthetases contain a characteristic Rossman fold catalytic domain and are mostly monomeric . Class II aminoacyl-tRNA synthetases share an anti-parallel beta-sheet fold flanked by alpha-helices , and are mostly dimeric or multimeric, containing at least three conserved regions , , . However, tRNA binding involves an alpha-helical structure that is conserved between class I and class II synthetases. In reactions catalysed by the class I aminoacyl-tRNA synthetases, the aminoacyl group is coupled to the 2'-hydroxyl of the tRNA, while, in class II reactions, the 3'-hydroxyl site is preferred. The synthetases specific for arginine, cysteine, glutamic acid, glutamine, isoleucine, leucine, methionine, tyrosine, tryptophan and valine belong to class I synthetases; these synthetases are further divided into three subclasses, a, b and c, according to sequence homology. The synthetases specific for alanine, asparagine, aspartic acid, glycine, histidine, lysine, phenylalanine, proline, serine, and threonine belong to class-II synthetases . Valyl-tRNA synthetase (6.1.1.9 from EC) is an alpha monomer that belongs to class Ia.; GO: 0000166 nucleotide binding, 0004832 valine-tRNA ligase activity, 0005524 ATP binding, 0006412 translation, 0006438 valyl-tRNA aminoacylation, 0005737 cytoplasm.
Probab=97.23  E-value=0.00023  Score=49.11  Aligned_cols=54  Identities=26%  Similarity=0.431  Sum_probs=44.0

Q ss_pred             HHHHHHH--HHHHHHHCCCCEECCCCHHHHHHHHHHHHHHHCCCCCE--E--EEEECEEECCCCHHHHHHHHCCC
Q ss_conf             9898999--99998542970201541258899888999973167971--7--98311023687102235431012
Q gi|254780949|r  177 MILQAYD--FVELAKNYDCRLQMGGSDQWGNIICGIDLGERLKTPKL--F--ALTSPLLTTASGTKMGKTLSGAI  245 (418)
Q Consensus       177 ~llQayD--~~~L~~~~~~~iqiGGsDQwgNi~~G~eLir~~~~~~~--~--glT~PLLt~~dG~KmgKS~~naI  245 (418)
T Consensus       537 ~L~TG~DIiFFWV~RM---------------i~~~~~~tgDEnGkP~~PFk~v~ihGLVRDeqG~KMSKSlGNvI  596 (970)
T TIGR00422       537 LLVTGYDIIFFWVARM---------------ILRSLALTGDENGKPQVPFKDVYIHGLVRDEQGRKMSKSLGNVI  596 (970)
T ss_pred             CCCCHHHHHHHHHHHH---------------HHHHHHHHCCCCCCCCCCCEEEEECCEEECCCCCCCCCCCCCCC
T ss_conf             5653036889999999---------------86215540135869887820258654455588851222056834