| Preface |
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XI | |
| List of Contributors |
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XIII | |
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1 Molecular Chaperones and the Ubiquitin–Proteasome System |
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1 | (30) |
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Cam Patterson and Jörg Höhfeld |
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1 | (1) |
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1.2 A Biomedical Perspective |
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2 | (1) |
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1.3 Molecular Chaperones: Mode of Action and Cellular Functions |
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3 | (5) |
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3 | (2) |
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5 | (2) |
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1.3.3 The Small Heat Shock Proteins |
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7 | (1) |
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8 | (1) |
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1.4 Chaperones: Central Players During Protein Quality Control |
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8 | (1) |
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1.5 Chaperones and Protein Degradation |
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9 | (4) |
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1.6 The CHIP Ubiquitin Ligase: A Link Between Folding and Degradation Systems |
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13 | (3) |
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1.7 Other Proteins That May Influence the Balance Between Chaperone-assisted Folding and Degradation |
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16 | (3) |
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1.8 Further Considerations |
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19 | (1) |
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20 | (1) |
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21 | (10) |
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2 Molecular Dissection of Autophagy in the Yeast Saccharomyces cerevisiae |
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31 | (20) |
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31 | (1) |
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2.2 Vacuoles as a Lytic Compartment in Yeast |
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32 | (1) |
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2.3 Discovery of Autophagy in Yeast |
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32 | (2) |
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2.4 Genetic Dissection of Autophagy |
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34 | (2) |
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2.5 Characterization of Autophagy-defective Mutants |
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36 | (1) |
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36 | (1) |
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2.7 Further Genes Required for Autophagy |
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37 | (1) |
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2.8 Selectivity of Proteins Degraded |
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37 | (1) |
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2.9 Induction of Autophagy |
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38 | (1) |
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2.10 Membrane Dynamics During Autophagy |
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39 | (1) |
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2.11 Monitoring Methods of Autophagy in the Yeast S. cerevisiae |
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39 | (1) |
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2.12 Function of Atg Proteins |
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40 | (5) |
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2.12.1 The Atg12 Protein Conjugation System |
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42 | (1) |
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43 | (1) |
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2.12.3 The Atg1 Kinase Complex |
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44 | (1) |
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2.12.4 Autophagy-specific PI3 Kinase Complex |
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45 | (1) |
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2.12.5 Other Atg Proteins |
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45 | (1) |
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2.13 Site of Atg Protein Functioning: The Pre-autophagosomal Structure |
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45 | (1) |
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2.14 Atg Proteins in Higher Eukaryotes |
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46 | (1) |
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2.15 Atg Proteins as Markers for Autophagy in Mammalian Cells |
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47 | (1) |
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2.16 Physiological Role of Autophagy in Multicellular Organisms |
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47 | (1) |
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48 | (1) |
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48 | (3) |
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3 Dissecting Intracellular Proteolysis Using Small Molecule Inhibitors and Molecular Probes |
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51 | (28) |
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Huib Ovaa, Herman S. Overkleeft, Benedikt M. Kessler, and Hidde L. Ploegh |
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51 | (3) |
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3.2 The Proteasome as an Essential Component of Intracellular Proteolysis |
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54 | (1) |
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3.3 Proteasome Structure, Function, and Localization |
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55 | (2) |
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3.4 Proteasome Inhibitors as Tools to Study Proteasome Function |
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57 | (7) |
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57 | (2) |
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59 | (1) |
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3.4.3 Peptide Epoxyketones |
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59 | (1) |
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60 | (1) |
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60 | (1) |
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3.4.6 Peptide Vinyl Sulfones |
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61 | (1) |
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3.4.7 Peptide Vinyl Sulfones as Proteasomal Activity Probes |
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62 | (1) |
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3.4.8 Future Directions in the Development of Inhibitors of the Proteasome's Proteolytic Activities |
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63 | (1) |
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3.5 Assessing the Biological Role of the Proteasome With Inhibitors and Probes |
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64 | (1) |
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3.6 Proteasome-associated Components: The Role of N-glycanase |
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65 | (1) |
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3.7 A Link Between Proteasomal Proteolysis and Deubiquitination |
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66 | (2) |
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3.7.1 Reversal of Ub Modification |
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66 | (1) |
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3.7.2 Ubiquitin-specific Proteases |
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66 | (1) |
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3.7.3 USP Reactive Probes Correlate USP Activity With Proteasomal Proteolysis |
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67 | (1) |
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3.8 Future Developments and Final Remarks |
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68 | (1) |
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68 | (1) |
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68 | (1) |
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69 | (10) |
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4 MEKK1: Dual Function as a Protein Kinase and a Ubiquitin Protein Ligase |
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79 | (10) |
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Zhimin Lu and Tony Hunter |
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79 | (1) |
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4.2 Types of Protein Kinases |
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79 | (3) |
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4.3 Functions of Protein Kinases |
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82 | (2) |
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4.4 Conclusions 84 References |
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84 | (5) |
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89 | (22) |
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Andreas Förster and Christopher P. Hill |
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89 | (5) |
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89 | (1) |
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5.1.2 The 20S Proteasome Gate |
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90 | (3) |
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5.1.3 Proteasome Activators |
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93 | (1) |
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5.2 11S Activators: Sequence and Structure |
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94 | (2) |
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5.2.1 Amino Acid Sequences |
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94 | (1) |
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94 | (1) |
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5.2.3 PA28α Crystal Structure |
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94 | (1) |
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95 | (1) |
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5.2.5 Homologue-specific Inserts |
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95 | (1) |
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5.3 PA26–Proteasome Complex Structures |
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96 | (1) |
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97 | (6) |
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5.3.2 Symmetry Mismatch Mechanism of Gate Opening |
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98 | (1) |
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5.3.3 Open-gate Stabilization by Conserved Proteasome Residues |
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99 | (1) |
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5.3.4 Do Other Activators Induce the Same Open Conformation? |
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100 | (1) |
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5.3.5 Differential Stimulation of Proteasome Peptidase Activities |
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101 | (1) |
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102 | (1) |
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5.4 Biological Roles of 11S Activators |
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103 | (1) |
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104 | (1) |
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5.6 Concluding Remarks and Future Challenges |
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105 | (1) |
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106 | (5) |
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6 The Proteasome Portal and Regulation of Proteolysis |
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111 | (18) |
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Monika Bajorek and Michael H. Glickman |
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111 | (3) |
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6.2 The Importance of Channel Gating |
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114 | (3) |
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6.3 A Porthole into the Proteasome |
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117 | (4) |
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117 | (2) |
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119 | (2) |
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6.4 Facilitating Traffic Through the Gated Channel |
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121 | (2) |
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6.4.1 Regulatory Complexes |
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121 | (1) |
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6.4.2 Substrate-facilitated Traffic |
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122 | (1) |
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6.5 Summary. Consequences for Regulated Proteolysis |
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123 | (1) |
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124 | (5) |
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7 Ubiquity and Diversity of the Proteasome System |
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129 | (28) |
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Keiji Tanaka, Hideki Yashiroda, and Shigeo Murata |
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129 | (1) |
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130 | (6) |
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7.2.1 Standard Proteasome |
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130 | (3) |
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7.2.2 The Immunoproteasome |
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133 | (3) |
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136 | (9) |
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137 | (2) |
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139 | (1) |
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140 | (1) |
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141 | (1) |
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142 | (1) |
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143 | (1) |
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144 | (1) |
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144 | (1) |
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145 | (3) |
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7.4.1 Roles of Propeptides |
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145 | (1) |
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146 | (1) |
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7.4.3 Immunoproteasome Assembly |
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146 | (1) |
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7.4.4 Assembly of the 26S Proteasome |
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147 | (1) |
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148 | (1) |
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149 | (8) |
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8 Proteasome-Interacting Proteins |
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157 | (26) |
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Jean E. O'Donoghue and Colin Gordon |
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157 | (3) |
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157 | (1) |
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8.1.2 Structure of the 26S Proteasome |
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158 | (1) |
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8.1.3 Marking Proteins for Proteasomal Degradation – the Ubiquitin System |
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159 | (1) |
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8.2 Regulators of the Holoenzyme and Chaperones Involved in Assembly of the Proteasome |
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160 | (2) |
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8.2.1 Proteasome Assembly and Integrity |
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160 | (1) |
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8.2.2 Regulators of the Holoenzyme |
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160 | (2) |
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8.3 Enzymes Controlling Ubiquitination and Deubiquitination |
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162 | (7) |
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8.3.1 E2 Ubiquitin-Conjugating Enzymes |
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162 | (1) |
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8.3.2 E3 Ubiquitin Ligases |
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163 | (2) |
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8.3.3 Deubiquitinating Enzymes (DUBs) |
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165 | (4) |
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8.4 Shuttling Proteins: Rpn10/Pus1 and UBA-UBL Proteins |
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169 | (3) |
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8.5 Other UBL-Containing Proteins |
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172 | (1) |
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173 | (1) |
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8.7 Proteasome Interactions with Transcription, Translation and DNA Repair |
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174 | (2) |
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176 | (2) |
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178 | (5) |
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9 Structural Studies of Large, Self-compartmentalizing Proteases |
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183 | (32) |
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Beate Rockel, Jürgen Bosch, and Wolfgang Baumeister |
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9.1 Self-compartmentalization: An Effective Way to Control Proteolysis |
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183 | (2) |
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9.2 ATP-dependent Proteases: The Initial Steps in the Proteolytic Pathway |
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185 | (8) |
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185 | (1) |
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9.2.1.1 The 20's Proteasome |
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185 | (1) |
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9.2.1.2 The PA28 Activator |
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186 | (1) |
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9.2.1.3 The 19S Cap Complex |
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187 | (1) |
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9.2.1.4 Archaeal and Bacterial AAA ATPases Activating the 20S Proteasome |
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189 | (1) |
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190 | (3) |
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9.3 Beyond the Proteasome: ATP-independent Processing of Oligopeptides Released by the Proteasome |
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193 | (8) |
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9.3.1 Tripeptidyl Peptidase II |
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193 | (3) |
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196 | (4) |
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9.3.3 Tetrahedral Aminopeptidase |
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200 | (1) |
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201 | (1) |
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202 | (1) |
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202 | (13) |
| 10 What the Archaeal PAN–Proteasome Complex and Bacterial ATP-dependent Proteases Can Teach Us About the 26S Proteasome |
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215 | (34) |
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Nadia Benaroudj, David Smith, and Alfred L. Goldberg |
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215 | (2) |
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10.2 Archaeal 20S Proteasomes |
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217 | (5) |
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10.3 PAN the Archaeal Homologue of the 19S Complex |
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222 | (5) |
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10.4 VAT, a Potential Regulator of Proteasome Function |
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227 | (1) |
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10.5 The Use of PAN to Understand the Energy Requirement for Proteolysis |
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227 | (5) |
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10.5.1 ATP Hydrolysis by PAN Allows Substrate Unfolding and Degradation |
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228 | (1) |
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10.5.2 ATP Hydrolysis by PAN Serves Additional Functions in Protein Degradation |
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229 | (2) |
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10.5.3 PAN and ATP Regulate Gate Opening |
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231 | (1) |
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10.5.4 PAN and ATP Are Required for Translocation of Unfolded Substrates |
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232 | (1) |
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10.6 Direction of Substrate Translocation |
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232 | (2) |
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10.7 Degradation of Polyglutamine-containing Proteins |
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234 | (1) |
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10.8 Eubacterial ATP-dependent Proteases |
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235 | (3) |
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235 | (2) |
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237 | (1) |
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10.9 How AAA ATPases Use ATP to Catalyze Proteolysis |
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238 | (1) |
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239 | (1) |
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240 | (1) |
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240 | (9) |
| 11 Biochemical Functions of Ubiquitin and Ubiquitin-like Protein Conjugation |
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249 | (30) |
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249 | (1) |
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249 | (3) |
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11.1.1 The Ubiquitin Conjugation Pathway |
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250 | (1) |
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11.1.2 Ubiquitin Polymers |
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251 | (1) |
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11.1.3 Ubiquitin Attachment Dynamics |
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251 | (1) |
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11.2 Ubls: A Typical Modification Cycle by an Atypical Set of Modifiers |
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252 | (3) |
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11.2.1 Some Unusual Ubl Conjugation Features |
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254 | (1) |
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11.3 Origins of the Ubiquitin System |
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255 | (4) |
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11.3.1 Sulfurtransferases and Ubl Activation Enzymes |
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256 | (1) |
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257 | (2) |
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11.4 Ubiquitin-binding Domains and Ubiquitin Receptors in the Proteasome Pathway |
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259 | (2) |
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11.4.1 A Proteasome "Ubiquitin Receptor" |
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259 | (1) |
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11.4.2 A Plethora of Ubiquitin-binding Domains |
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259 | (1) |
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11.4.3 Ubiquitin Conjugate Adaptor Proteins |
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260 | (1) |
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11.5 Ubiquitin-binding Domains and Membrane Protein Trafficking |
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261 | (3) |
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11.5.1 The MVB Pathway and RNA Virus Budding |
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263 | (1) |
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11.6 Sumoylation and SUMO-binding Motifs |
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264 | (4) |
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11.6.1 A SUMO-binding Motif |
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265 | (1) |
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11.6.2 A SUMO-induced Conformational Change |
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266 | (1) |
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11.6.3 Interactions Between Different Sumoylated Proteins |
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267 | (1) |
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11.7 General Biochemical Functions of Protein–Protein Conjugation |
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268 | (3) |
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11.7.1 Negative Regulation by Ubl Conjugation |
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269 | (1) |
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11.7.2 Positive Regulation by Ubl Conjugation |
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270 | (1) |
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11.7.3 Cross-regulation by Ubls |
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270 | (1) |
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271 | (1) |
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272 | (1) |
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272 | (7) |
| Index |
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279 | |