mitochondrially encoded NADH dehydrogenase 6
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A MT-ND6 gene provides instructions for making a protein called NADH dehydrogenase 6. This protein is part of a large enzyme complex known as complex I, which is active in mitochondria. Mitochondria are structures within cells that convert the energy from food into a form that cells can use. These cellular structures produce energy through a process called oxidative phosphorylation, which uses oxygen and simple sugars to create adenosine triphosphate (ATP), the cell's main energy source.
Normal function
A MT-ND6 gene provides instructions for making a protein called NADH dehydrogenase 6. This protein is part of a large enzyme complex known as complex I, which is active in mitochondria. Mitochondria are structures within cells that convert the energy from food into a form that cells can use. These cellular structures produce energy through a process called oxidative phosphorylation, which uses oxygen and simple sugars to create adenosine triphosphate (ATP), the cell's main energy source.
Complex I is one of several enzyme complexes necessary for oxidative phosphorylation. Within mitochondria, these complexes are embedded in a tightly folded, specialized membrane called the inner mitochondrial membrane. During oxidative phosphorylation, mitochondrial enzyme complexes carry out chemical reactions that drive the production of ATP. Specifically, they create an unequal electrical charge on either side of the inner mitochondrial membrane through a step-by-step transfer of negatively charged particles called electrons. This difference in electrical charge provides the energy for ATP production.
Complex I is responsible for the first step in the electron transport process, the transfer of electrons from a molecule called NADH to another molecule called ubiquinone. Electrons are then passed from ubiquinone through several other enzyme complexes to provide energy for the generation of ATP.
Conditions referring to this gene or chromosome
Other names
mitochondrially encoded NADH dehydrogenase 6
MTND6
NADH dehydrogenase 6
NADH dehydrogenase subunit 6
NADH-ubiquinone oxidoreductase chain 6
NADH-ubiquinone oxidoreductase, subunit ND6
ND6
NU6M_HUMAN
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Leitura adicional e referências
- mitochondrially encoded NADH dehydrogenase 6; MedlinePlus, National Library of Medicine.
- Baracca A, Solaini G, Sgarbi G, Lenaz G, Baruzzi A, Schapira AH, Martinuzzi A, Carelli V. Severe impairment of complex I-driven adenosine triphosphate synthesis in leber hereditary optic neuropathy cybrids. Arch Neurol. 2005 May;62(5):730-6. doi: 10.1001/archneur.62.5.730.
- Carelli V, Ghelli A, Bucchi L, Montagna P, De Negri A, Leuzzi V, Carducci C, Lenaz G, Lugaresi E, Degli Esposti M. Biochemical features of mtDNA 14484 (ND6/M64V) point mutation associated with Leber's hereditary optic neuropathy. Ann Neurol. 1999 Mar;45(3):320-8.
- Chinnery PF, Andrews RM, Turnbull DM, Howell NN. Leber hereditary optic neuropathy: Does heteroplasmy influence the inheritance and expression of the G11778A mitochondrial DNA mutation? Am J Med Genet. 2001 Jan 22;98(3):235-43. doi: 10.1002/1096-8628(20010122)98:33.0.co;2-o.
- Fauser S, Leo-Kottler B, Besch D, Luberichs J. Confirmation of the 14568 mutation in the mitochondrial ND6 gene as causative in Leber's hereditary optic neuropathy. Ophthalmic Genet. 2002 Sep;23(3):191-7. doi: 10.1076/opge.23.3.191.7881.
- Gropman A, Chen TJ, Perng CL, Krasnewich D, Chernoff E, Tifft C, Wong LJ. Variable clinical manifestation of homoplasmic G14459A mitochondrial DNA mutation. Am J Med Genet A. 2004 Feb 1;124A(4):377-82. doi: 10.1002/ajmg.a.20456.
- Huoponen K. Leber hereditary optic neuropathy: clinical and molecular genetic findings. Neurogenetics. 2001 Jul;3(3):119-25. doi: 10.1007/s100480100115.
- Kirby DM, Kahler SG, Freckmann ML, Reddihough D, Thorburn DR. Leigh disease caused by the mitochondrial DNA G14459A mutation in unrelated families. Ann Neurol. 2000 Jul;48(1):102-4.
- Lenaz G, Baracca A, Carelli V, D'Aurelio M, Sgarbi G, Solaini G. Bioenergetics of mitochondrial diseases associated with mtDNA mutations. Biochim Biophys Acta. 2004 Jul 23;1658(1-2):89-94. doi: 10.1016/j.bbabio.2004.03.013.
- Mitchell AL, Elson JL, Howell N, Taylor RW, Turnbull DM. Sequence variation in mitochondrial complex I genes: mutation or polymorphism? J Med Genet. 2006 Feb;43(2):175-9. doi: 10.1136/jmg.2005.032474. Epub 2005 Jun 21.
- Tarnopolsky MA, Baker SK, Myint T, Maxner CE, Robitaille J, Robinson BH. Clinical variability in maternally inherited leber hereditary optic neuropathy with the G14459A mutation. Am J Med Genet A. 2004 Feb 1;124A(4):372-6. doi: 10.1002/ajmg.a.20449.
- Valentino ML, Avoni P, Barboni P, Pallotti F, Rengo C, Torroni A, Bellan M, Baruzzi A, Carelli V. Mitochondrial DNA nucleotide changes C14482G and C14482A in the ND6 gene are pathogenic for Leber's hereditary optic neuropathy. Ann Neurol. 2002 Jun;51(6):774-8. doi: 10.1002/ana.10193.
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