GOT2 and Hyperammonemia: GOT2 deficiency was recently described in patients who presented with mild hypercitrullinemia, mild hyperammonemia and normal glutamine, arginine and ornithine levels.65 Additionally, affected patients had secondary serine deficiency as a consequence of a hampered aspartate‐malate cycle and suffered from epileptic seizures and acquired microcephaly ascribed to the secondary serine synthesis defect.