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The complete mitochondrial DNA sequence for an Australian agamid Pogona vitticepes was determined. Twenty-two tRNA genes, two rRNA genes, thirteen protein-coding genes, and two control regions were identified in this mitochondrial genome. The second control region was inserted between NADH dehydrogenase subunits 5 and 6 genes. The duplication of the control region was found in all Australasian agamids...
Increasing evidence suggests that mitochondrial function declines during aging in various tissues and in a wide range of organisms. This correlates with an age-dependent large accumulation of specific point mutations in the mtDNA control region that was reported recently in human fibroblast and skeletal muscle. However, evaluations of aging-related mtDNA mutations in other model animal systems. In...
The mitochondrial DNA (mtDNA) from the salmon louse, Lepeophtheirus salmonis, is 15445 bp. It includes the genes coding for cytochrome B (Cyt B), ATPase subunit 6 and 8 (A6 and A8), NADH dehydrogenase subunits 1–6 and 4L (ND1, ND2, ND3, ND4, ND4L, ND5 and ND6), cytochrome c oxidase subunits I–III (COI, COII and COIII), two rRNA genes (12S rRNA and 16S rRNA) and 22 tRNAs. Two copies of tRNA-Lys are...
Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an autosomal recessive disorder characterized by ptosis and progressive external ophthalmoplegia, peripheral neuropathy, severe gastrointestinal dysmotility, cachexia and leukoencephalopathy. Muscle biopsies of MNGIE patients have revealed morphologically abnormal mitochondria and defects of respiratory chain enzymes. In addition, patients...
Depletion and multiple deletions of mitochondrial DNA (mtDNA) have been associated with a number of autosomal disorders classified as defects of nuclear-mitochondrial intergenomic signaling. The mendelian forms of progressive external ophthalmoplegia (PEO) are clinically and genetically heterogeneous disorders characterized by the accumulation of multiple deletions of mtDNA in postmitotic patient's...
The translocation of tRNA genes has occurred frequently among multiple independent arthropod lineages. However, the mechanisms of such gene rearrangement are still unclear. In this study we sequenced the nearly complete mitochondrial genome of the Japanese freshwater crab, Geothelphusa dehaani (Decapoda, Brachyura, Potamidae). Its size is relatively large (app. 24 kb) for higher animal mtDNA and is...
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