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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The role of host factors in entry and post-entry events in the replication cycle of human immunodeficiency virus type 1 /

Pineda, Mario Javier, January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (leaves 102-120).
2

Functional studies on the interaction of imunoglobulins with HIV-2 envelope /

Sourial, Samer, January 2005 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2005. / Härtill 4 uppsatser.
3

Studies of the hepatitis C virus envelope proteins : interaction with host cells and as targets for the humoral response /

Beyene, Aster, January 2004 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2004. / Härtill 5 uppsatser.
4

Characterization of spike glycoprotein fusion core and 3C-like protease substrate specificity of the severe acute respiratory syndrome (SARS) coronavirus: perspective for anti-SARS drug development.

January 2006 (has links)
Chu Ling Hon Matthew. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 201-223). / Abstracts in English and Chinese. / Declaration --- p.i / Thesis/Assessment Committee --- p.ii / Abstract --- p.iii / 摘要 --- p.vi / Acknowledgements --- p.viii / General abbreviations --- p.xi / Abbreviations of chemicals --- p.xv / Table of Contents --- p.xvi / List of Figures --- p.xxiii / List of tables --- p.xxviii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Severe Acute Respiratory Syndrome (SARS) - Three Years in Review --- p.1 / Chapter 1.1.1 --- Epidemiology --- p.1 / Chapter 1.1.2 --- Clinical presentation --- p.3 / Chapter 1.1.3 --- Diagnostic tests --- p.5 / Chapter 1.2 --- Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) --- p.7 / Chapter 1.2.1 --- SARS - Identification of the etiological agent --- p.7 / Chapter 1.2.2 --- The coronaviruses --- p.9 / Chapter 1.2.3 --- The genome organization of SARS-CoV --- p.11 / Chapter 1.2.4 --- The life cycle of SARS-CoV --- p.13 / Chapter 1.3 --- Spike Glycoprotein (S protein) of SARS-CoV --- p.15 / Chapter 1.3.1 --- SARS-CoV S protein --- p.15 / Chapter 1.3.2 --- S protein-driven infection --- p.17 / Chapter 1.4 --- SARS-CoV S Protein Fusion Core --- p.22 / Chapter 1.4.1 --- Heptad repeat and coiled coil --- p.22 / Chapter 1.4.2 --- The six-helix coiled coil bundle structure --- p.25 / Chapter 1.5 --- 3C-like Protease (3CLpro) of SARS-CoV --- p.28 / Chapter 1.5.1 --- Extensive proteolytic processing of replicase polyproteins --- p.28 / Chapter 1.5.2 --- SARS-CoV 3CLpro --- p.30 / Chapter 1.5.3 --- Substrate Specificity of SARS-CoV 3CLpro --- p.31 / Chapter 1.6 --- SARS Drug Development --- p.32 / Chapter 1.6.1 --- Drug targets of SARS-CoV --- p.32 / Chapter 1.6.2 --- Current anti-SARS drugs --- p.36 / Chapter 1.7 --- Project Objectives --- p.39 / Chapter 1.7.1 --- Characterization of SARS-CoV S protein fusion core --- p.39 / Chapter 1.7.2 --- Characterization of SARS-CoV 3CLpr0 substrate specificity --- p.40 / Chapter 2 --- Materials and Methods --- p.42 / Chapter 2.1 --- Characterization of SARS-CoV S Protein Fusion Core --- p.42 / Chapter 2.1.1 --- Bioinformatics analyses of heptad repeat regions of SARS- CoV S protein --- p.42 / Chapter 2.1.2 --- Recombinant protein approach --- p.43 / Chapter 2.1.2.1 --- Plasmids construction --- p.43 / Chapter 2.1.2.2 --- Protein expression and purification --- p.52 / Chapter 2.1.2.3 --- Amino acid analysis --- p.57 / Chapter 2.1.2.4 --- GST-pulldown experiment --- p.58 / Chapter 2.1.2.5 --- Laser light scattering --- p.61 / Chapter 2.1.2.6 --- Size-exclusion chromatography --- p.62 / Chapter 2.1.2.7 --- Circular dichroism spectroscopy --- p.62 / Chapter 2.1.3 --- Synthetic peptide approach --- p.64 / Chapter 2.1.3.1 --- Peptide synthesis --- p.64 / Chapter 2.1.3.2 --- Native polyacrylamide gel electrophoresis --- p.65 / Chapter 2.1.3.3 --- Size-exclusion high-performance liquid chromato-graphy --- p.66 / Chapter 2.1.3.4 --- Laser light scattering --- p.66 / Chapter 2.1.3.5 --- Circular dichroism spectroscopy --- p.67 / Chapter 2.2 --- Identification of SARS-CoV Entry Inhibitors --- p.70 / Chapter 2.2.1 --- HIV-luc/SARS pseudotyped virus entry inhibition assay --- p.70 / Chapter 2.2.2 --- Recombinant protein- and synthetic peptide-based biophysical assays --- p.74 / Chapter 2.2.3 --- Molecular modeling --- p.75 / Chapter 2.3 --- Characterization of SARS-CoV 3CLpro Substrate Specificity --- p.79 / Chapter 2.3.1 --- Protein expression and purification --- p.79 / Chapter 2.3.2 --- """Cartridge replacement"" solid-phase peptide synthesis" --- p.80 / Chapter 2.3.3 --- Peptide cleavage assay and mass spectrometric analysis --- p.83 / Chapter 3 --- Results --- p.84 / Chapter 3.1 --- Characterization of SARS-CoV S Protein Fusion Core --- p.84 / Chapter 3.1.1 --- Bioinformatics analyses of heptad repeat regions of SARS- CoV S protein --- p.84 / Chapter 3.1.2 --- Recombinant protein approach --- p.87 / Chapter 3.1.2.1 --- "Plasmids construction of pET-28a-His6-HRl, pGEX-6P-l-HR2 and pGEX-6P-l-2-Helix" --- p.87 / Chapter 3.1.2.2 --- Protein expression and purification --- p.92 / Chapter 3.1.2.3 --- GST-pulldown experiment --- p.101 / Chapter 3.1.2.4 --- Laser light scattering --- p.103 / Chapter 3.1.2.5 --- Size-exclusion chromatography --- p.105 / Chapter 3.1.2.6 --- Circular dichroism spectroscopy --- p.107 / Chapter 3.1.3 --- Synthetic peptide approach --- p.112 / Chapter 3.1.3.1 --- Peptide synthesis --- p.112 / Chapter 3.1.3.2 --- Native polyacrylamide gel electrophoresis --- p.116 / Chapter 3.1.3.3 --- Size-exclusion high-performance liquid chromatography --- p.117 / Chapter 3.1.3.4 --- Laser light scattering --- p.122 / Chapter 3.1.3.5 --- Circular dichroism spectroscopy --- p.124 / Chapter 3.2 --- Identification of SARS-CoV Entry Inhibitors --- p.129 / Chapter 3.2.1 --- HIV-luc/SARS pseudotyped virus entry inhibition assay --- p.129 / Chapter 3.2.2 --- Recombinant protein- and synthetic peptide-based biophysical assays --- p.131 / Chapter 3.2.3 --- Molecular modeling --- p.135 / Chapter 3.3 --- Characterization of SARS-CoV 3CLpro Substrate Specificity --- p.141 / Chapter 3.3.1 --- Protein expression and purification --- p.141 / Chapter 3.3.2 --- Substrate specificity preference of SARS-CoV 3CLpr0 --- p.142 / Chapter 3.3.3 --- "Primary and secondary screening using the ""cartridge replacement strategy""" --- p.142 / Chapter 4 --- Discussion --- p.149 / Chapter 4.1 --- Characterization of SARS-CoV S Protein Fusion Core --- p.149 / Chapter 4.1.1 --- Design of recombinant proteins and synthetic peptides of HR regions --- p.149 / Chapter 4.1.2 --- Recombinant protein approach --- p.151 / Chapter 4.1.3 --- Synthetic peptide approach --- p.153 / Chapter 4.1.4 --- Summary of the present and previous studies in the SARS-CoV S protein fusion core --- p.157 / Chapter 4.2 --- Identification of SARS-CoV Entry Inhibitors --- p.167 / Chapter 4.2.1 --- HIV-luc/SARS pseudotyped virus entry inhibition assay --- p.167 / Chapter 4.2.2 --- Identification of peptide inhibitors --- p.168 / Chapter 4.2.3 --- Identification of small molecule inhibitors --- p.172 / Chapter 4.3 --- Characterization of SARS-CoV 3CLpro Substrate Specificity --- p.183 / Chapter 4.3.1 --- A comprehensive overview of the substrate specificity of SARS-CoV 3CLpro --- p.184 / Chapter 4.3.2 --- The development of the rapid and high-throughput screening strategy for protease substrate specificity --- p.188 / Appendix --- p.191 / Chapter I. --- Nucleotide Sequence of S protein of SARS-CoV --- p.191 / Chapter II. --- Protein Sequence of S protein of SARS-CoV --- p.194 / Chapter III. --- Protein Sequence of 3CLpro of SARS-CoV --- p.195 / Chapter IV. --- Vector maps --- p.196 / Chapter 1. --- Vector map and MCS of pET-28a --- p.196 / Chapter 2. --- Vector map and MCS of pGEX-6P-l --- p.197 / Chapter V. --- Electrophoresis markers --- p.198 / Chapter 1. --- GeneRuler´ёØ 1 kb DNA Ladder --- p.198 / Chapter 2. --- GeneRuler´ёØ 100bp DNA Ladder --- p.198 / Chapter 3. --- High-range Rainbow Molecular Weight Markers --- p.199 / Chapter 4. --- Low-range Rainbow Molecular Weight Markers --- p.199 / Chapter VI. --- SDS-PAGE gel preparation protocol --- p.200 / References --- p.201
5

Translational effects of mutations and polymorphisms in a repressive upstream open reading frame of the human cytomegalovirus UL4 gene /

Alderete, John Paul, January 2000 (has links)
Thesis (Ph. D.)--University of Washington, 2000. / Vita. Includes bibliographical references (leaves 89-99).
6

Incorporation of cellular proteins into enveloped virus particles /

Hammarstedt, Maria, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 3 uppsatser.
7

Coronavirus mediated membrane fusion /

Howard, Megan Wilder. January 2008 (has links)
Thesis (Ph.D. in Microbiology) -- University of Colorado Denver, 2008. / Typescript. Includes bibliographical references (leaves 161-183). Free to UCD Anschutz Medical Campus. Online version available via ProQuest Digital Dissertations;
8

Role of the gM/gN glycoprotein complex in the final assembly and egress of the human cytomegalovirus (HCMV)

Krzyzaniak, Magdalena Anna. January 2008 (has links) (PDF)
Thesis (Ph. D.)--University of Alabama at Birmingham, 2008. / Title from first page of PDF file (viewed Sept. 16, 2008). Includes bibliographical references.
9

Activation of the spike proteins of alpha- and retroviruses

Wu, Shang-Rung, January 2009 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2009. / Härtill 4 uppsatser.
10

Identification of interacting partner(s) of SARS-CoV spike glycoprotein.

January 2006 (has links)
Chuck Chi-pang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 138-160). / Abstracts in English and Chinese. / Thesis Committee --- p.ii / Abstract --- p.iii / 摘要 --- p.v / Contents --- p.vii / List of Figures --- p.xi / List of Tables --- p.xiii / Abbreviations --- p.xiv / Acknowledgement --- p.xviii / Introduction / Chapter 1. --- Background / Chapter 1.1 --- SARS / Chapter 1.1.1 --- Outbreak and Influence --- p.1 / Chapter 1.1.2 --- Clinical Features --- p.4 / Chapter 1.2 --- SARS-CoV / Chapter 1.2.1 --- Genomic Organization --- p.5 / Chapter 1.2.2 --- Morphology --- p.7 / Chapter 1.2.3 --- Phylogenetic Analysis --- p.9 / Chapter 1.3 --- S Glycoprotein / Chapter 1.3.1 --- Functional Roles --- p.11 / Chapter 1.3.2 --- Structure and Functional Domains --- p.12 / Chapter 1.3.3 --- Interacting Partners --- p.15 / Chapter 1.3.4 --- Viral Entry Mechanism --- p.17 / Chapter 1.4 --- Aim of Study / Chapter 1.4.1 --- Mismatch of SARS-CoV Tissue Tropism and Tissue Distribution of ACE2 --- p.20 / Chapter 1.4.2 --- Presence of Other Interacting Partner(s) --- p.22 / Chapter 1.4.3 --- Significance of the Study Materials and Methods --- p.22 / Chapter 2. --- Plasmid Construction / Chapter 2.1 --- Fragment Design / Chapter 2.1.1 --- Functional Domain Analysis --- p.23 / Chapter 2.1.2 --- Secondary Structure and Burial Region Predictions --- p.24 / Chapter 2.2 --- Vector Amplification / Chapter 2.2.1 --- E. coli Strain DH5a Competent Cell Preparation --- p.30 / Chapter 2.2.2 --- Transformation of E. coli --- p.30 / Chapter 2.2.3 --- Small-scale Vector Amplification --- p.31 / Chapter 2.3 --- Cloning of DNA Fragments into Various Vectors / Chapter 2.3.1 --- Primer Design --- p.32 / Chapter 2.3.2 --- DNA Amplification --- p.35 / Chapter 2.3.3 --- DNA Purification --- p.35 / Chapter 2.3.4 --- "Restriction Enzyme Digestion, Ligation and Transformation" --- p.36 / Chapter 2.3.5 --- Colony PCR --- p.37 / Chapter 2.4 --- DNA Sequence Analysis / Chapter 2.4.1 --- Primer Design --- p.35 / Chapter 2.4.2 --- DNA Amplification and Purification for DNA Sequence Analysis --- p.39 / Chapter 2.4.3 --- Sequence Detection and Result Analysis --- p.40 / Chapter 3. --- "Protein Expression, Purification and Analysis" / Chapter 3.1 --- Protein Expression in E. coli / Chapter 3.1.1 --- Molecular Weight and pI Predictions --- p.41 / Chapter 3.1.2 --- Glycerol Stock Preparation --- p.41 / Chapter 3.1.3 --- Protein Expression Induction --- p.41 / Chapter 3.1.4 --- Protein Extraction --- p.42 / Chapter 3.1.5 --- Affinity Chromatography --- p.42 / Chapter 3.1.6 --- Removal of GroEL --- p.43 / Chapter 3.1.7 --- Protein Solubilization and Refolding --- p.44 / Chapter 3.2 --- Protein Expression in P. pastoris / Chapter 3.2.1 --- Large-scale Plasmid Amplification --- p.46 / Chapter 3.2.2 --- Restriction Enzyme Digestion and Ethanol Precipitation --- p.47 / Chapter 3.2.3 --- Preparation of KM71H Competent Cells --- p.47 / Chapter 3.2.4 --- Electroporation --- p.48 / Chapter 3.2.5 --- Colony PCR --- p.48 / Chapter 3.2.6 --- Protein Expression Induction and Time Course Study --- p.49 / Chapter 3.2.7 --- Deglycosylation --- p.49 / Chapter 3.3 --- Protein Analysis / Chapter 3.3.1 --- Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis --- p.50 / Chapter 3.3.2 --- Western Blotting --- p.50 / Chapter 3.3.3 --- Mass Spectrometry --- p.51 / Chapter 3.3.4 --- N-terminal Sequencing --- p.52 / Chapter 3.3.5 --- Size Exclusion Chromatography --- p.52 / Chapter 4. --- Identification of Interacting Partner(s) / Chapter 4.1 --- VeroE6 Preparation / Chapter 4.1.1 --- Cell Culture --- p.53 / Chapter 4.1.2 --- Protein Extraction and Western Blotting --- p.53 / Chapter 4.2 --- Pull-down Assay --- p.54 / Chapter 4.3 --- Two-dimensional Gel Electrophores --- p.is / Chapter 4.3.1 --- Isoelectric Focusing --- p.56 / Chapter 4.3.2 --- Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis --- p.56 / Chapter 4.3.3 --- Silver Staining --- p.57 / Chapter 4.4 --- Mass Spectrometry / Chapter 4.4.1 --- Destaining --- p.58 / Chapter 4.4.2 --- In-gel Digestion --- p.58 / Chapter 4.4.3 --- Desalting by Zip-tip --- p.59 / Chapter 4.4.4 --- Loading Sample --- p.59 / Chapter 4.4.5 --- Peptide Mass Detection and Data Analysis --- p.59 / Results / Chapter 5. --- S Protein Expression / Chapter 5.1 --- Plasmid Construction --- p.61 / Chapter 5.2 --- Molecular Weight and pi Predictions --- p.63 / Chapter 5.3 --- Protein Expression and Optimization in E. coli / Chapter 5.3.1 --- "Comparison of Expression Levels, Solubility and Purities of S Protein Fragments" --- p.64 / Chapter 5.3.2 --- "Alteration of the Solubility in Various Cell Strains, Expression Conditions and Lysis Buffers" --- p.68 / Chapter 5.3.3 --- Identification and Remove of the non-target proteins --- p.72 / Chapter 5.3.4 --- Unfolding and Refolding --- p.79 / Chapter 5.4 --- Protein Expression and Optimization in P. pastoris / Chapter 5.4.1 --- "Expression Levels, Solubility and Purities of Various S Protein Fragments" --- p.85 / Chapter 5.4.2 --- Characterization of De-N-glycosylated Recombinant Proteins --- p.89 / Chapter 6. --- Identification of Interacting partners / Chapter 6.1 --- Practicability of Pull-down Assay / Chapter 6.1.1 --- ACE2 Extraction --- p.95 / Chapter 6.1.2 --- Pull-down of ACE2 by the P. pastoris-expressed recombinant RBD --- p.96 / Chapter 6.2 --- Pull-down Assay and Two-dimensional Gel Electrophoresis --- p.97 / Chapter 6.3 --- Identification of Putative Interacting Partners by MALDI-TOF-TOF --- p.107 / Chapter 7. --- Discussion / Chapter 7.1 --- S Protein Expression in E. coli / Chapter 7.1.1 --- Improving Recombinant Protein Expression Level and Solubility --- p.114 / Chapter 7.1.2 --- S Recombinant Protein Bound by GroEL --- p.117 / Chapter 7.2 --- S Protein Expression in P. pastoris / Chapter 7.2.1 --- Advantages of Using P. pastoris --- p.119 / Chapter 7.2.2 --- Variation of S Fragment Expression Levels --- p.120 / Chapter 7.2.3 --- Sizes of S Protein Fragments --- p.123 / Chapter 7.3 --- Identification of Interacting Partners / Chapter 7.3.1 --- Relationship between S Protein and Putative Interacting Partners --- p.124 / Chapter 7.3.2 --- Failure of Finding ACE2 --- p.125 / Chapter 7.3.2 --- Difficulty in the Identification of Protein Spots --- p.126 / Chapter 7.4 --- Conclusion --- p.131 / Chapter 7.5 --- Future Perspective --- p.132 / Chapter 8. --- Appendix --- p.133 / Chapter 9. --- References --- p.138

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