In<unk> , there is not enough<unk><unk>  for gluconeogenesis to occur correctly. Glycolysis (the break-down of glucose) will still work, as it does not use this enzyme.
Fructose bisphosphatase deficiency
Triosephosphate isomerase deficiency
ALA dehydratase deficiency
Pyruvate kinase deficiency
Aldolase A deficiency
Alpha-ketoglutarate dehydrogenase deficiency
Galactose epimerase deficiency
Carbamoyl phosphate synthetase I deficiency