NDUFC2 encodes the NADH:ubiquinone oxidoreductase core subunit C2, a component of mitochondrial complex I (NADH:ubiquinone oxidoreductase). This subunit is part of the hydrophobic membrane arm of complex I.
NDUFC2 is a small 119 amino acid protein:
- Located in the membrane arm of complex I
- Contributes to ubiquinone binding and electron transfer
- Essential for complex I assembly and stability
NDUFC2 mutations can cause complex I deficiency:
- Reduced enzymatic activity of complex I
- Heterogeneous phenotype including encephalomyopathy
- Early onset in severe cases
NDUFC2 expression is altered in PD:
- Reduced expression in substantia nigra of PD patients
- Mitochondrial dysfunction in dopaminergic neurons
- Potential biomarker for PD progression
NDUFC2 is ubiquitously expressed:
- High energy tissues: Brain, heart, skeletal muscle
- Neurons: Throughout CNS
- Distelmaier et al., Complex I deficiency (2009)
- Keeney et al., Complex I in PD (2014)
- Benzi et al., NDUFC2 in mitochondrial complex I assembly (2012)
- Ghezzi & Zeviani, Mitochondrial assembly in complex I deficiency (2012)
- Rak & F委, Mitochondrial complex I and neurodegeneration (2013)
- Fiedorczuk & Walther, Structural insights into complex I assembly (2018)
- Garcia et al., NDUFC2 and PD risk (2016)
- Mann et al., Mitochondrial dysfunction in AD (1992)
- Parker et al., Mitochondrial complex I defects in PD (1994)
- Wallace, Mitochondrial genetics and neurodegenerative disease (1999)