HHsearch alignment for GI: 255764513 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=97.42 E-value=0.00066 Score=46.84 Aligned_cols=16 Identities=25% Similarity=0.395 Sum_probs=9.4
Q ss_pred HHHHHHHCCCCCCCCC
Q ss_conf 5553110132212234
Q gi|255764513|r 245 PLIKNPDKSKLSKRRN 260 (492)
Q Consensus 245 pli~~~~g~klSKR~~ 260 (492)
T Consensus 578 GLVRDeqG~KMSKSlG 593 (970)
T TIGR00422 578 GLVRDEQGRKMSKSLG 593 (970)
T ss_pred CEEECCCCCCCCCCCC
T ss_conf 4455588851222056