label: diphthine-[translation elongation factor 2] + S-adenosyl-L-homocysteine + H(+) => 2-[(3S)-3-carboxy-3-(dimethylamino)propyl]-L-histidyl-[translation elongation factor 2] + S-adenosyl-L-methionine
label_lc: diphthine-[translation elongation factor 2] + s-adenosyl-l-homocysteine + h(+) => 2-[(3s)-3-carboxy-3-(dimethylamino)propyl]-l-histidyl-[translation elongation factor 2] + s-adenosyl-l-methionine