si_0658 Pyrrolysine Proline 2-methylase for pyrrolysine biosynthesis si_0658 Pyrrolysine Proline reductase for pyrrolysine biosynthesis si_0658 Pyrrolysine Pyrrolysine synthetase si_0658 Pyrrolysine Pyrrolysyl-tRNA synthetase (EC 6.1.1.26) si_0658 Pyrrolysine pyrrolysine-containing