UniProt functional annotation for Q8N3J5



	UniProt functional annotation for Q8N3J5

UniProt code: Q8N3J5.

Organism: Homo sapiens (Human).

Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.

Function: Regulates the mitochondrial permeability transition pore and is essential for cellular survival and development. {ECO:0000269|PubMed:17374715}.

Catalytic activity: Reaction=H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] + phosphate; Xref=Rhea:RHEA:20629, Rhea:RHEA-COMP:9863, Rhea:RHEA- COMP:11604, ChEBI:CHEBI:15377, ChEBI:CHEBI:29999, ChEBI:CHEBI:43474, ChEBI:CHEBI:83421; EC=3.1.3.16;

Catalytic activity: Reaction=H2O + O-phospho-L-threonyl-[protein] = L-threonyl-[protein] + phosphate; Xref=Rhea:RHEA:47004, Rhea:RHEA-COMP:11060, Rhea:RHEA- COMP:11605, ChEBI:CHEBI:15377, ChEBI:CHEBI:30013, ChEBI:CHEBI:43474, ChEBI:CHEBI:61977; EC=3.1.3.16;

Cofactor: Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit.;

Biophysicochemical properties: Kinetic parameters: KM=10.7 mM for p-nitrophenylphosphate {ECO:0000269|PubMed:17336929}; Vmax=3.6 umol/min/mg enzyme toward p-nitrophenylphosphate (at 30 degrees Celsius) {ECO:0000269|PubMed:17336929}; Vmax=4 nmol/min/mg enzyme toward branched-chain alpha-ketoacid dehydrogenase complex (at 37 degrees Celsius) {ECO:0000269|PubMed:17336929}; Note=Half maximal activity toward p-nitrophenylphosphate achieved with 3.7 mM of manganese ions.;

Subcellular location: Mitochondrion matrix {ECO:0000269|PubMed:17336929, ECO:0000269|PubMed:17374715}.

Disease: Maple syrup urine disease, mild variant (MSUDMV) [MIM:615135]: A mild form of maple syrup urine disease, a metabolic disorder due to an enzyme defect in the catabolic pathway of the branched-chain amino acids leucine, isoleucine, and valine. Accumulation of these 3 amino acids and their corresponding keto acids leads to encephalopathy and progressive neurodegeneration. Clinical features include mental and physical retardation, feeding problems, and a maple syrup odor to the urine. The keto acids of the branched-chain amino acids are present in the urine. If untreated, maple syrup urine disease can lead to seizures, coma, and death. The disease is often classified by its pattern of signs and symptoms. The most common and severe form of the disease is the classic type, which becomes apparent soon after birth. Variant forms of the disorder become apparent later in infancy or childhood and are typically milder, but they still involve developmental delay and other medical problems if not treated. MSUDMV is characterized by increased plasma levels of branched-chain amino acids (BCAA) apparent at birth. Treatment with a low-protein diet free of BCAA can result in normal psychomotor development and lack of metabolic episodes. {ECO:0000269|PubMed:23086801}. Note=The gene represented in this entry is involved in disease pathogenesis.

Similarity: Belongs to the PP2C family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.


Organism:		Homo sapiens (Human).
Taxonomy:		Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.



Function:		Regulates the mitochondrial permeability transition pore and is essential for cellular survival and development. {ECO:0000269\|PubMed:17374715}.


Catalytic activity:		Reaction=H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] + phosphate; Xref=Rhea:RHEA:20629, Rhea:RHEA-COMP:9863, Rhea:RHEA- COMP:11604, ChEBI:CHEBI:15377, ChEBI:CHEBI:29999, ChEBI:CHEBI:43474, ChEBI:CHEBI:83421; EC=3.1.3.16;
Catalytic activity:		Reaction=H2O + O-phospho-L-threonyl-[protein] = L-threonyl-[protein] + phosphate; Xref=Rhea:RHEA:47004, Rhea:RHEA-COMP:11060, Rhea:RHEA- COMP:11605, ChEBI:CHEBI:15377, ChEBI:CHEBI:30013, ChEBI:CHEBI:43474, ChEBI:CHEBI:61977; EC=3.1.3.16;
Cofactor:		Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit.;
Biophysicochemical properties:		Kinetic parameters: KM=10.7 mM for p-nitrophenylphosphate {ECO:0000269\|PubMed:17336929}; Vmax=3.6 umol/min/mg enzyme toward p-nitrophenylphosphate (at 30 degrees Celsius) {ECO:0000269\|PubMed:17336929}; Vmax=4 nmol/min/mg enzyme toward branched-chain alpha-ketoacid dehydrogenase complex (at 37 degrees Celsius) {ECO:0000269\|PubMed:17336929}; Note=Half maximal activity toward p-nitrophenylphosphate achieved with 3.7 mM of manganese ions.;
Subcellular location:		Mitochondrion matrix {ECO:0000269\|PubMed:17336929, ECO:0000269\|PubMed:17374715}.
Disease:		Maple syrup urine disease, mild variant (MSUDMV) [MIM:615135]: A mild form of maple syrup urine disease, a metabolic disorder due to an enzyme defect in the catabolic pathway of the branched-chain amino acids leucine, isoleucine, and valine. Accumulation of these 3 amino acids and their corresponding keto acids leads to encephalopathy and progressive neurodegeneration. Clinical features include mental and physical retardation, feeding problems, and a maple syrup odor to the urine. The keto acids of the branched-chain amino acids are present in the urine. If untreated, maple syrup urine disease can lead to seizures, coma, and death. The disease is often classified by its pattern of signs and symptoms. The most common and severe form of the disease is the classic type, which becomes apparent soon after birth. Variant forms of the disorder become apparent later in infancy or childhood and are typically milder, but they still involve developmental delay and other medical problems if not treated. MSUDMV is characterized by increased plasma levels of branched-chain amino acids (BCAA) apparent at birth. Treatment with a low-protein diet free of BCAA can result in normal psychomotor development and lack of metabolic episodes. {ECO:0000269\|PubMed:23086801}. Note=The gene represented in this entry is involved in disease pathogenesis.
Similarity:		Belongs to the PP2C family. {ECO:0000305}.