The glycine cleavage system catalyzes the degradation of glycine. The P protein (GLDC) binds the alpha-amino group of glycine through its pyridoxal phosphate cofactor; CO(2) is released and the remaining methylamine moiety is then transferred to the lipoamide cofactor of the H protein (GCSH)

Mitochondrion

Non-ketotic hyperglycinemia

Autosomal recessive disease characterized by accumulation of a large amount of glycine in body fluid and by severe neurological symptoms.

The glycine cleavage system catalyzes the degradation of glycine. The H protein (GCSH) shuttles the methylamine group of glycine from the P protein (GLDC) to the T protein (GCST). Has a pivotal role in the lipoylation of enzymes involved in cellular energetics such as the mitochondrial dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex (DLAT), and the mitochondrial dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase com

Mitochondrion

Multiple mitochondrial dysfunctions syndrome 7

An autosomal recessive disorder biochemically characterized by glycine accumulation in body fluids, including the cerebrospinal fluid, with an elevated cerebrospinal fluid/plasma glycine ratio. The broad clinical spectrum ranges from neonatal fatal glycine encephalopathy to an attenuated phenotype of developmental delay, limited verbal communication, behavioral problems, seizures and variable movement problems. Death in infancy or early childhood may occur.

The glycine cleavage system catalyzes the degradation of glycine

Mitochondrion

Glycine encephalopathy 2

A form of glycine encephalopathy, a metabolic disorder characterized by a high concentration of glycine in the body fluids. Affected individuals typically have severe neurological symptoms, including seizure, lethargy, and muscular hypotonia soon after birth. Most of them die within the neonatal period. Atypical cases have later disease onset and less severely affected psychomotor development.