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  • 1
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Mitochondrial pathology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (389 pages)
    Edition: 1st ed.
    ISBN: 9780471461074
    DDC: 571.6/57
    Language: English
    Note: Intro -- MITOCHONDRIA -- CONTENTS -- Preface -- 1 History -- References -- 2 Evolutionary Origin of Mitochondria -- References -- 3 Structure and Morphology: Integration into the cell -- 3.1 Structure and Morphology -- 3.2 Integration Into the Cell -- 3.2.1 Distribution in the Cytosol -- 3.2.2 Interaction With Cytoskeleton -- 3.2.3 Mitochondrial Shape Changes -- 3.2.4 Distribution During Cell Division -- 3.2.5 Behavior During Cell Differentiation -- 3.2.6 Turnover and Degradation -- 3.2.7 Unsolved Problems for the Future -- References -- 4 Biogenesis -- 4.1 The Mitochondrial Genome -- 4.1.1 Introduction -- 4.1.2 The Mitochondrial Genome in Metazoans -- 4.1.3 The Mitochondrial Genome in Plants -- 4.1.4 The Mitochondrial Genome in Fungi -- 4.1.5 The Mitochondrial Genome in Kinetoplastid Protozoa -- 4.1.6 Mitochondrial Plasmids -- 4.2 Nuclear Genes Encoding Mitochondrial Proteins -- 4.2.1 Enzymes Required for Mitochondrial Gene Expression -- 4.2.2 Nucleomitochondrial Interactions -- 4.3 Replication of Mitochondrial DNA -- 4.4 Transcription of mtDNA-RNA Metabolism -- 4.4.1 Transcription in Mammalian Mitochondria -- 4.4.2 Transcription of mtDNA in the Yeast Saccharomyces cerevisiae -- 4.4.3 Transcription of mtDNA in Plant Mitochondria -- 4.4.4 Transcriptional Termination -- 4.4.5 RNA Processing in Mitochondria -- 4.4.6 RNA Editing in Kinetoplastic Protozoa -- 4.4.7 RNA Editing in Plant Mitochondria -- 4.4.8 Control of mRNA Levels by Turnover -- 4.5 Translation of Mitochondrial mRNAs -- 4.5.1 Introduction -- 4.5.2 Codon Usage and tRNA Structure -- 4.5.3 Mitochondrial Ribosomes -- 4.5.4 cis-Acting Elements of Mitochondrial mRNA -- 4.5.5 Translation Factors -- 4.6 Protein Import Into Mitochondria -- 4.7 Import of tRNA Into Mitochondria -- 4.8 Regulated Protein Degradation in Mitochondria -- 4.9 Unsolved Problems -- References. , 5 Mitochondrial Electron Transport and Oxidative Phosphorylation -- 5.1 Historical Introduction -- 5.2 The Electron Transport Chain -- 5.2.1 Biochemical Components -- 5.2.2 Physical Separation of the Complexes of the Electron Transport Chain -- 5.3 Electron Transport in Other Organisms -- 5.3.1 NAD(P)H Dehydrogenases -- 5.3.2 A Cyanide-Insensitive Electron Pathway -- 5.3.3 NADH Oxidation in Yeast -- 5.3.4 Energy Metabolism and NADH Oxidation in Trypanosomes -- 5.4 The Chemiosmotic Hypothesis -- 5.4.1 The Mitchell Hypothesis -- 5.4.2 The Q Cycle -- 5.4.3 Probing the Mitochondrial Membrane Potential With Fluorescent Dyes -- 5.5 ATP Synthase (F(1)F(0)-ATPase) -- 5.5.1 Introduction -- 5.5.2 X-ray Structure -- 5.5.3 ATP Synthesis and Catalytic Mechanisms -- 5.5.4 The F(0) Subcomplex and Proton Flow -- 5.6 Control of Respiration and Oxidative Phosphorylation -- 5.6.1 General Considerations -- 5.6.2 The Uncoupling Proteins in Warm-Blooded Animals -- 5.6.3 Uncoupling in Other Organisms -- 5.6.4 Transport of Small Solutes Into and Out of Mitochondria -- 5.7 Reactive Oxygen Species -- 5.8 The Role of Specific Lipids -- References -- 6 Metabolic Pathways Inside Mitochondria -- 6.1 Introduction -- 6.2 The Krebs Cycle -- 6.3 Fatty Acid Metabolism -- 6.4 The Urea Cycle -- 6.5 Biosynthesis of Heme -- 6.6 Cardiolipin and Lipid Biosynthesis/Metabolism -- 6.7 Biosynthesis of Ubiquinol (Coenzyme Q) -- References -- 7 Mitochondrial Mutations and Disease -- 7.1 In Cell Culture -- 7.1.1 Mitochondrial Mutations in Microorganisms -- 7.1.2 Respiration-Deficient Mammalian Cells -- 7.2 Molecular Genetics of Mitochondrial Diseases -- 7.2.1 Introduction -- 7.2.2 Maternal vs Sporadic Inheritance -- 7.2.3 Mapping mtDNA Deletions/Rearrangements -- 7.2.4 Maternal Inheritance of mtDNA Point Mutations -- 7.2.5 Mitochondria and Oogenesis -- 7.2.6 Clinical Aspects of mtDNA Mutations. , 7.2.7 Conclusion -- 7.3 Mitochondrial DNA and Aging -- 7.3.1 Introduction -- 7.3.2 Accumulation of mtDNA Damage and Normal Aging -- 7.3.3 Parkinson's Disease -- 7.3.4 Alzheimer's Disease -- 7.3.5 Huntington's Disease -- 7.4 Mitochondria and Apoptosis -- 7.4.1 Introduction -- 7.4.2 The Bcl-2 Protein and the Permeability Transition -- 7.4.3 Apoptosis and Cytochrome c -- 7.4.4 Protein-Protein Interactions -- 7.5 Fungal Senescence -- 7.6 Cytoplasmic Male Sterility in Plants -- References -- 8 Mitochondrial DNA Polymorphisms and Anthropology -- 8.1 Introduction -- 8.2 Human Evolution -- 8.3 Primate Evolution -- 8.4 Human Y Chromosome Variation -- 8.5 Forensic Applications -- 8.6 Future Challenges -- References -- 9 Mitochondria and Pharmacology -- 9.1 Introduction -- References -- Glossary -- Index.
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  • 2
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Mitochondria. ; Mitochondrial pathology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (494 pages)
    Edition: 2nd ed.
    ISBN: 9780470191767
    DDC: 571.6/57
    Language: English
    Note: Intro -- MITOCHONDRIA -- CONTENTS -- Preface -- Preface to First Edition -- 1 History -- References -- 2 Evolutionary Origin of Mitochondria -- References -- 3 Structure and Morphology. Integration into the Cell -- 3.1 Structure and Morphology -- 3.2 Integration into the Cell -- 3.2.1 Distribution in the Cytosol -- 3.2.2 Interaction with Cytoskeleton -- 3.3 The Dynamics of Mitochondrial Morphology -- 3.3.1 Mitochondrial Shape Changes -- 3.3.1.1 Fission -- 3.3.1.2 Fusion -- 3.3.2 Distribution During Cell Division -- 3.3.3 During Cell Differentiation -- 3.3.4 Turnover and Degradation -- 3.3.5 Mitochondrial Alterations in Apoptosis -- 3.3.6 Unsolved Problems for the Future -- References -- 4 Biogenesis of Mitochondria -- 4.1 The Mitochondrial Genome -- 4.1.1 Introduction -- 4.1.2 The Mitochondrial Genome in Metazoans -- 4.1.3 The Mitochondrial Genome in Plants -- 4.1.4 The Mitochondrial Genome in Fungi -- 4.1.5 The Mitochondrial Genome in Kinetoplastid Protozoa -- 4.1.6 Mitochondrial Plasmids -- 4.1.6.1 Fungal Senescence -- 4.1.6.2 Phytopathogenicity -- 4.1.6.3 Cytoplasmic Male Sterility (CMS) -- 4.2 Nuclear Genes Encoding Mitochondrial Proteins -- 4.2.1 Enzymes Required for Maintenance and Expression of the Mitochondrial Genome -- 4.2.2 Nucleo-mitochondrial Interactions -- 4.2.2.1 Introduction -- 4.2.2.2 In Yeast, Saccharomyces cerevisiae -- 4.2.2.3 Regulation of Nuclear Respiratory Genes in Mammalian Cells -- 4.2.2.4 Co-evolution of Nuclear and Mitochondrial Genomes -- 4.3 Replication and Maintenance of Mitochondrial DNA -- 4.3.1 DNA Replication in Mammalian Mitochondria -- 4.3.2 mtDNA Repair in Mammalian Mitochondria -- 4.3.3 Recombination in Mammalian Mitochondria -- 4.3.4 mtDNA Maintenance and Replication in Other Organisms -- 4.4 Transcription of Mitochondrial DNA-RNA Metabolism -- 4.4.1 Transcription in Mammalian Mitochondria. , 4.4.2 Transcription of mtDNA in the Yeast Saccharomyces cerevisiae -- 4.4.3 Transcription of mtDNA in Plant Mitochondria -- 4.4.4 Transcriptional Termination -- 4.4.5 RNA Processing in Mitochondria -- 4.4.6 RNA Editing in Kinetoplastid Protozoa -- 4.4.7 Editing in Plant Mitochondria -- 4.4.8 Control of mRNA Levels by Turnover -- 4.5 Translation of Mitochondrial mRNAs -- 4.5.1 Introduction -- 4.5.2 Codon Usage and tRNA Structure -- 4.5.3 Mitochondrial Ribosomes -- 4.5.4 Cis-Acting Elements -- 4.5.5 Translation Factors -- 4.6 Protein Import into Mitochondria -- 4.6.1 Mitochondrial Targeting of Proteins -- 4.6.2 The Protein Import Machinery of Mitochondria -- 4.7 Import of Transfer RNA into Mitochondria -- 4.8 Regulated Protein Degradation in Mitochondria -- References -- 5 Mitochondrial Electron Transfer and Oxidative Phosphorylation -- 5.1 Historical Introduction -- 5.2 The Electron Transport Chain -- 5.2.1 The Biochemical Components -- 5.2.2 Physical Separation of the Complexes of the ETC -- 5.2.2.1 Biochemical Fractionations -- 5.2.2.2 Supercomplexes -- 5.2.3 Introduction to Bioenergetics -- 5.2.4 Complex I -- 5.2.5 Complex II -- 5.2.5.1 Nuclear Versus Mitochondrial Location of Complex II Genes -- 5.2.6 Complex III -- 5.2.7 Complex IV -- 5.2.8 The Assembly of the Electron Transport Chain Complexes -- 5.3 Electron Transport in Other Organisms -- 5.3.1 NAD(P)H Dehydrogenases -- 5.3.2 A Cyanide-Insensitive Electron Pathway -- 5.3.3 NADH Oxidation in Yeasts -- 5.3.4 Energy Metabolism and NADH Oxidation in Trypanosomes -- 5.4 The Chemiosmotic Hypothesis -- 5.4.1 The Mitchell Hypothesis -- 5.4.2 The Q Cycle -- 5.4.3 Probing the Mitochondrial Membrane Potential with Fluorescent Dyes -- 5.5 ATP Synthase (F(1)F(0)-ATPase) -- 5.5.1 Introduction -- 5.5.2 X-Ray Structure -- 5.5.3 ATP Synthesis and Catalytic Mechanisms. , 5.5.4 The F(0) Subcomplex and Proton Flow -- 5.5.5 Assembly of Complex V and Dimerization -- 5.6 Control of Respiration and Oxidative Phosphorylation -- 5.6.1 General Considerations -- 5.6.1.1 The Role of Substrates -- 5.6.2 The Uncoupling Proteins in Warm-Blooded Animals -- 5.6.3 Uncoupling in Other Organisms -- 5.6.3.1 In Saccharomyces cerevisiae -- 5.6.3.2 In Plants -- 5.7 Reactive Oxygen Species -- 5.8 Nitric Oxide (NO) -- 5.9 The Role of Specific Lipids -- References -- 6 Metabolic Pathways Inside Mitochondria -- 6.1 Introduction -- 6.2 The Krebs Cycle -- 6.3 Fatty Acid Metabolism -- 6.4 The Urea Cycle -- 6.5 Biosynthesis of Heme -- 6.6 Cardiolipin and Lipid Biosynthesis/Metabolism -- 6.7 Biosynthesis of Ubiquinol (Coenzyme Q) -- 6.8 Biosynthesis of Fe-S Centers -- 6.9 Transport of Small Solutes into and out of Mitochondria -- 6.9.1 Introduction -- 6.9.2 Porin Alias VDAC -- 6.9.3 The ADP/ATP Translocator -- 6.9.4 The Mitochondrial Carrier Protein Family -- 6.9.5 Cation Transport -- 6.9.5.1 Transport of Calcium and Its Physiological Role -- 6.9.6 The Mitochondrial Permeability Transition -- References -- 7 Mitochondrial Mutations and Disease -- 7.1 General Introduction -- 7.2 In Cell Culture -- 7.2.1 Mitochondrial Mutations in Microorganisms -- 7.2.2 Mitochondrial Mutations in Mammalian Cells in Culture -- 7.3 Molecular Genetics of Human Mitochondrial Diseases -- 7.3.1 Introduction -- 7.3.2 Maternal Versus Sporadic Inheritance -- 7.3.3 Mapping mtDNA Deletions/Rearrangements -- 7.3.4 mtDNA Point Mutations and Maternal Inheritance -- 7.3.5 Mitochondria and Oogenesis -- 7.3.6 Clinical Aspects of Mitochondrial DNA Mutations -- 7.3.6.1 MtDNA Deletions: Kearns-Sayre Syndrome and Pearson Syndrome -- 7.3.6.2 Familial Mitochondrial DNA Depletion -- 7.3.6.3 Point Mutations -- 7.3.7 Nuclear Mutations and Mitochondrial Disease. , 7.3.7.1 Defective Electron Transport Chain -- 7.3.7.2 MtDNA Maintenance and Replication -- 7.3.7.3 Friedreich's Ataxia -- 7.3.7.4 Deafness and Dystonia Syndrome (Mohr-Tranebjaerg Syndrome) -- 7.3.8 Conclusion -- 7.4 Mitochondrial DNA and Aging -- 7.4.1 Introduction -- 7.4.2 Accumulation of mtDNA Damage and Normal Aging -- 7.4.3 Neurodegenerative Diseases -- 7.4.3.1 Parkinson's Disease -- 7.4.3.2 Alzheimer's Disease -- 7.4.3.3 Huntington's Disease -- 7.4.3.4 Amyotrophic Lateral Sclerosis (ALS) -- 7.5 Mitochondria and Apoptosis -- 7.6 Fungal Senescence -- 7.7 Cytoplasmic Male Sterility in Plants -- References -- 8 Mitochondrial DNA Sequencing and Anthropology -- 8.1 Introduction -- 8.2 Human Evolution -- 8.3 Primate Evolution -- 8.4 Human Y Chromosome Variation -- 8.5 Forensic Applications -- 8.6 Future Challenges -- References -- 9 Mitochondria and Pharmacology -- 9.1 Introduction -- References -- Index.
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  • 3
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A group of Chinese hamster ovary (CHO) cell mutants deficient in ornithine decarboxylase (ODC) activity are described and compared to the prototype mutant reported previously (21). Although all mutants belong to the same complementation group, they can be divided into two classes: those with some residual enzyme activity and those with no activity. All mutants are putrescine auxotrophs, but they differ in their ability to utilize the enzyme's substrate, ornithine, a property which correlates with the amount of residual enzyme activity. The mutants also differ in their frequency of reversion to prototrophy. The leaky mutants revert at a high rate by overproducing a partially defective enzyme by a gene amplification mechanism similar to that leading to the ornithine analog-resistant mutants which have elevated enzyme levels. Spontaneous reversion in the null mutants is rare. However, one null mutant, which was induced with ethyl methane sulfonate and which makes ODC mRNA but no active enzyme, is nevertheless revertible with 5-azacytidine. We conclude that CHO cells are at least diploid at the ODC locus, but that only one allele is active. Further studies suggest the possibility that ethyl methane sulfonate is not just a classical mutagen but may also induce gene inactivations that are revertible by 5-azacytidine.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have further characterized a temperature-sensitive mutant of Chinese hamster lung fibroblasts in tissue culture with a defect in RNA metabolism. The mutant phenotype is reflected in transcription in crude extracts or in isolated nuclei, when these are made from cells shifted to the nonpermissive temperature; however, differential heat inactivation between mutant and wild-type extracts cannot be demonstrated with cell-free systems. We tentatively conclude that the mutation may affect initiation of transcription which cannot be observed in our in vitro systems. Partially purified RNA polymerase I, II, and III fractions are indistinguishable from wild type. A temperature shift does not affect transcription by RNA polymerase III measured with intact cells or by nuclear run-on experiments. The nuclear run-on and other experiments suggest that RNA polymerase II-dependent transcription is inhibited before RNA polymerase I-dependent transcription. This conclusion is also supported by Northern analyses of selected mRNAs in nonsynchronized and synchronized cells after a shift to the nonpermissive temperature.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Somatic cell and molecular genetics 19 (1993), S. 505-511 
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A partial human cDNA clone for the iron-protein (IP) subunit of succinate dehydrogenase (EC 1.3.99.1) was used in Southern analyses of restriction enzyme digests of genomic human and hamster DNA as well as hamster-human hybrids containing a limited number of human chromosomes. The gene for this protein was mapped to human chromosome 1. Digestion of genomic DNA with several restriction enzymes yielded two fragments detectable on a Southern blot, in contrast to the expectations based on the sequence of the cDNA clone. A preliminary analysis of a genomic clone with most of theIP gene has indicated the presence of several introns containing restriction sites detected by the Southern analysis. This genomic clone was also used for subregional mapping by fluorescence in situ hybridization (FISH) to human metaphase chromosomes. A single locus in the region 1p35-36.1 was identified.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Somatic cell and molecular genetics 8 (1982), S. 691-707 
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This paper describes genetic mapping studies with several respiration-deficient mutants of Chinese hamster fibroblasts which have a defect in complex I of the electron transport chain (NADH-coenzyme Q reductase). The mutations associated with two different complementation groups map on the X chromosome. In two cases (G14 and G20) karyotypic and isozyme analyses in hybrids have shown that a gene(s) on the mouse Xchromosome complements the mutation(s) in the hamster cell mutant(s). A cosegregation analysis in hybrid cells has shown the corresponding genes to be linked to the HPRTgenes (hamster-mouse hybrids of G14, and hamster-hamster hybrids for G14 and G20). By the same method the defective gene in a third mutant (G4) was also shown to be X-linked. A mutation representing a third complementation group (G11) was shown to be on an autosomal gene. These results provide an explanation for our observation that cells with recessive mutations in complementation groups I and II can be selected at relatively high frequencies.
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  • 8
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Human DNA sequences in the human-hamster somatic cell hybrid XJM12.1.3 exist in the form of a minichromosome including the centromere of human chromosome 1. We describe the cloning of XJM12.1.3 DNA into the lambda vector EMBL3, the identification of minichromosome DNA-containing recombinants by hybridization with human sequences, and the characterization of one recombinant as a specific and unique probe for a region close to the centromere of human chromosome 1. This probe and others isolated from the minichromosome DNA are being developed to permit molecular access to a human centromere and its functional sequences.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We describe a series of primary and secondary hamster-human hybrids which have selectively retained a small amount of human DNA. The hybrid XJM12.1.3 contains an estimated 4000–8000 kb of human DNA, and for a secondary hybrid derived from it, XEW8.2.3, our estimate is 1000–2000 kb. The hybridization of Southern blots of DNA from these hybrids with a variety of human satellite DNA probes reveals that these lines include centromere sequences of human chromosome 1. The identifiable human DNA is in the form of a minichromosome, as detected by in situ hybridization in the light microscope and in the electron microscope. At mitosis, the minichromosome can be observed to have kinetochores and to be associated with microtubules. Therefore, it can segregate in a stable fashion. It may be significant that in the selection of the hybrids we had selected for a human gene which has been mapped on human chromosome 1.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In this study we examine the amounts of four different human satellite DNA sequences in a series of human-hamster hybrid cells, which contain a human minichromosome including the centromere of human chromosome 1. Comparisons with the corresponding amounts in an intact human chromosome 1 suggest that the minichromosomes have lost satellite DNA sequences, and in one case a substantial fraction of several satellite DNAs is lost, without affecting the stability and normal mitotic segregation of the minichromosome. The smallest minichromosome appears to have lost all of the long arm and a significant portion of centromeric heterochromatin, while retaining 1000–2000 kb of the short arm of human chromosome 1. The satellite sequences examined include: a chromosome 1-specific satellite III probe, a chromosome 1-specific alpha satellite DNA, another alpha satellite DNA originally derived from the X chromosome, and an alphoid EcoRI dimer whose isolation from one of the minichromosomes and characterization is also described in this paper. One interpretation of these data indicates that an interspersion of blocks of satellite sequences occurs in the centromere region of chromosome 1. If these satellite sequences have functional significance, then there may be redundancy in the system that allows for a variation in the size of the kinetochore and the number of attachment sites for microtubules.
    Type of Medium: Electronic Resource
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