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Literature summary extracted from

  • Hiraga, K.; Kikuchi, G.
    The mitochondrial glycine cleavage system. Purification and properties of glycine decarboxylase from chicken liver mitochondria (1980), J. Biol. Chem., 255, 11664-11670 .
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.4.1.27 lipoic acid both glycine decarboxylation and the glycine-CO2 exchange catalyzed by P-protein are stimulated 100fold or more by the addition of lipoic acid Gallus gallus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.4.1.27 40
-
glycine value for the isolated P-protein, pH 6.6, 37°C Gallus gallus

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.4.1.27 mitochondrion
-
Gallus gallus 5739
-

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.4.1.27 Co2+ 0.1 mM, 83% inhibition of the exchange of glycine carboxyl carbon with CO, catalyzed by glycine decarboxylase (P-protein) and aminomethyl carrier protein (H-protein) Gallus gallus
1.4.1.27 Cu2+ 0.1 mM, 100% inhibition of the exchange of glycine carboxyl carbon with CO, catalyzed by glycine decarboxylase (P-protein) and aminomethyl carrier protein (H-protein). Of the two partial reactions, decarboxylation of glycine yielding the H-protein-bound aminomethyl moiety is not significantly affected, but carboxylation of the H-protein-bound aminomethyl moiety to form glycine is strongly inhibited Gallus gallus
1.4.1.27 Fe2+ 0.1 mM, 20% inhibition of the exchange of glycine carboxyl carbon with CO, catalyzed by glycine decarboxylase (P-protein) and aminomethyl carrier protein (H-protein) Gallus gallus
1.4.1.27 additional information no significant inhibition: Mn2+, Mg2+ Gallus gallus
1.4.1.27 Ni2+ 0.1 mM, 84% inhibition of the exchange of glycine carboxyl carbon with CO, catalyzed by glycine decarboxylase (P-protein) and aminomethyl carrier protein (H-protein) Gallus gallus
1.4.1.27 Zn2+ 0.1 mM, 99% inhibition of the exchange of glycine carboxyl carbon with CO, catalyzed by glycine decarboxylase (P-protein) and aminomethyl carrier protein (H-protein), competitive with both bicarbonate and H-protein and noncompetitive with glycine. Of the two partial reactions, decarboxylation of glycine yielding the H-protein-bound aminomethyl moiety is not significantly affected, but carboxylation of the H-protein-bound aminomethyl moiety to form glycine is strongly inhibited Gallus gallus

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.4.1.27 200000
-
gel filtration, component P-protein Gallus gallus

Organism

EC Number Organism UniProt Comment Textmining
1.4.1.27 Gallus gallus P15505 i.e. component P-protein, glycine dehydrogenase, cf. EC 1.4.4.2
-
1.4.1.27 Gallus gallus P15505 and P11183 and P28337 P15505 i.e. glycine dehydrogenase component P-protein, cf., EC 1.4.4.2, P11183 i.e. component H-protein, P28337 i.e. aminomethyltransferase component T-protein, cf. EC 2.1.2.10
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.4.1.27 liver
-
Gallus gallus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.4.1.27 glycine + tetrahydrofolate + NAD+
-
Gallus gallus 5,10-methylenetetrahydrofolate + NH3 + CO2 + NADH
-
?

Subunits

EC Number Subunits Comment Organism
1.4.1.27 multimer 2 * 100000, SDS-PAGE, component P-protein Gallus gallus

Synonyms

EC Number Synonyms Comment Organism
1.4.1.27 GCSH
-
Gallus gallus

Cofactor

EC Number Cofactor Comment Organism Structure
1.4.1.27 pyridoxal 5'-phosphate 1 molecule per subunit of component P-protein Gallus gallus

pI Value

EC Number Organism Comment pI Value Maximum pI Value
1.4.1.27 Gallus gallus isoelectric focussing, component P-protein
-
7.2

General Information

EC Number General Information Comment Organism
1.4.1.27 physiological function the isolated component P-protein can bind glycine and catalyze glycine decarboxylation but at extremely low rate. The product of glycine decarboxylation is methylamine. Methylamine can bind to P-protein, inhibiting the glycine decarboxylation. P-protein alone can also slightly catalyze the exchange of carboxyl carbon of glycine with CO2 and the exchange obeys a pingpong mechanism Gallus gallus