NDUFA9

The encoded protein is a subunit of the hydrophobic protein fraction of the NADH:ubiquinone oxidoreductase (complex I), the first enzyme complex in the electron transport chain located in the inner mitochondrial membrane. A pseudogene has been identified on chromosome 12.

NADH dehydrogenase (ubiquinone) 1 alpha subcomplex, 9, 39kDa

Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in catalysis. Required for proper complex I assembly (PubMed:28671271).

Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone.

Aerobic respiration Source: ComplexPortal
Circadian rhythm Source: UniProtKB
Mitochondrial ATP synthesis coupled proton transport Source: ComplexPortal
Mitochondrial electron transport, NADH to ubiquinone Source: UniProtKB
Mitochondrial respiratory chain complex I assembly Source: UniProtKB
Sodium ion transport Source: UniProtKB
Ubiquinone-6 biosynthetic process Source: GO_Central

Mitochondrion matrix

Mitochondrial complex I deficiency, nuclear type 26 (MC1DN26):
A form of mitochondrial complex I deficiency, the most common biochemical signature of mitochondrial disorders, a group of highly heterogeneous conditions characterized by defective oxidative phosphorylation, which collectively affects 1 in 5-10000 live births. Clinical disorders have variable severity, ranging from lethal neonatal disease to adult-onset neurodegenerative disorders. Phenotypes include macrocephaly with progressive leukodystrophy, non-specific encephalopathy, cardiomyopathy, myopathy, liver disease, Leigh syndrome, Leber hereditary optic neuropathy, and some forms of Parkinson disease. MC1DN26 transmission pattern is consistent with autosomal recessive inheritance.

Acetylated on lysine residues. BLOC1S1 is required for acetylation (PubMed:22309213). Acetylated by CLOCK in a circadian manner (PubMed:28985504).