cd03693

EF1_alpha_II: this family represents the domain II of elongation factor 1-alpha (EF-1a) that is found in archaea and all eukaryotic lineages. EF-1A is very abundant in the cytosol, where it is involved in the GTP-dependent binding of aminoacyl-tRNAs to the A site of the ribosomes in the second step of translation from mRNAs to proteins. Both domain II of EF1A and domain IV of IF2/eIF5B have been implicated in recognition of the 3'-ends of tRNA. More than 61% of eukaryotic elongation factor 1A (eEF-1A) in cells is estimated to be associated with actin cytoskeleton. The binding of eEF1A to actin is a noncanonical function that may link two distinct cellular processes, cytoskeleton organization and gene expression.