Cloning and sequence analysis of the cDNA for bovine mitochondrial translational initiation factor 2.

The complete sequence of the cDNA encoding bovine mitochondrial translational initiation factor 2 (IF-2mt) has been obtained by library screening followed by 3'-RACE PCR. The open reading frame for bovine IF-2mt encodes a protein of 727 amino acids. The sequence of bovine IF-2mt exhibits 85% identity to human IF-2mt, but only 38% identity to yeast IF-2mt and 39% identity to Escherichia coli IF-2 alpha.