For biological systems, yes - though you also need the ribosome present to actually translate the RNA into a protein (that's where the synthetic enzymes are actually found).
To clarify the previous answerer: most proteins have hundreds-to-thousands of amino acid residues. There are 20 amino acids which constitute the bulk of all proteins. In adult humans, there are only 8 *essential* amino acids, which cannot be synthesized. The other 12 can be created by the cell from the 8 essential ones.