SLC25A4: Catalyzes the exchange of cytoplasmic ADP with mitochondrial ATP across the mitochondrial inner membrane. Defects in SLC25A4 are a cause of progressive external ophthalmoplegia with mitochondrial DNA deletions autosomal dominant type 2 (PEOA2). Progressive external ophthalmoplegia is characterized by progressive weakness of ocular muscles and levator muscle of the upper eyelid. In a minority of cases, it is associated with skeletal myopathy, which predominantly involves axial or proximal muscles and which causes abnormal fatigability and even permanent muscle weakness. Ragged- red fibers and atrophy are found on muscle biopsy. A large proportion of chronic ophthalmoplegias are associated with other symptoms, leading to a multisystemic pattern of this disease. Additional symptoms are variable, and may include cataracts, hearing loss, sensory axonal neuropathy, ataxia, depression, hypogonadism, and parkinsonism. Belongs to the mitochondrial carrier family.
Protein type: Membrane protein, integral; Transporter; Transporter, SLC family; Membrane protein, multi-pass; Mitochondrial
Chromosomal Location of Human Ortholog: 4q35
Cellular Component: integral to plasma membrane; mitochondrial inner membrane; mitochondrion; myelin sheath; nucleus
Molecular Function: adenine transmembrane transporter activity; protein binding; structural constituent of ribosome
Biological Process: adenine transport; apoptotic mitochondrial changes; energy reserve metabolic process; generation of precursor metabolites and energy; mitochondrial genome maintenance; regulation of insulin secretion; translation; transmembrane transport; transport; viral reproduction
Disease: Mitochondrial Dna Depletion Syndrome 12 (cardiomyopathic Type); Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant, 2
Show more