Mondo Description A metabolic disorder characterized by D-glyceric acid excretion. It has been described in several patients. Clinical findings include progressive neurological impairment, hypotonia, seizures, failure to thrive and metabolic acidosis. Some patients had hyperglycinemia secondary to the organic acidemia. However, some of the reported patients were asymptomatic. D-glyceric aciduria is caused by D-glycerate kinase deficiency. The GLYCTK gene has been mapped to 3p21.

Uniprot Description A rare metabolic disease characterized by chronic metabolic acidosis and a highly variable clinical phenotype. Clinical features range from an encephalopathic presentation with seizures, microcephaly, severe mental retardation and early death, to milder manifestations with only speech delay or even normal development.