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Virus Replication: The process of intracellular viral multiplication, consisting of the synthesis of Proteins; Nucleic acids; and sometimes Lipids, and their assembly into a new infectious particle.

Ex Vivo Infection of Human Lymphoid Tissue and Female Genital Mucosa with Human Immunodeficiency Virus 1 and Histoculture

1Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, 2Section of Intercellular Interactions, Eunice Shriver National Institute of Child Health and Human Development, National Institutes of Health

JoVE 57013


 Immunology and Infection

A Primary Neuron Culture System for the Study of Herpes Simplex Virus Latency and Reactivation

1Department of Microbiology, New York University School of Medicine, 2Molecular Neurobiology Program, Skirball Institute for Biomolecular Medicine, New York University School of Medicine, 3Department of Otolaryngology, New York University School of Medicine, 4Department of Cell Biology, New York University School of Medicine, 5Department of Physiology and Neuroscience, New York University School of Medicine, 6Department of Psychiatry, New York University School of Medicine, 7Center for Neural Science, New York University School of Medicine

JoVE 3823


 Immunology and Infection

Protein Crystallization

JoVE 5689

Protein crystallization, obtaining a solid lattice of biomolecules, elucidates protein structure and enables the study of protein function. Crystallization involves drying purified protein under a combination of many factors, including pH, temperature, ionic strength, and protein concentration. Once crystals are obtained, the protein structure can be elucidated by x-ray diffraction and computation of an electron density model. This video introduces protein crystallization and shows a general procedure. Protein expression and purification, crystallization, and x-ray diffraction are covered in the procedure. Applications of protein crystallization include in silico drug design, binding site determination, and membrane protein structure analysis. Protein crystallization is the process of obtaining a latticed solid form of a protein. These crystals are especially valuable to structural biologists, assisting in the study of protein function. Other techniques, such as mass spec or SDS-PAGE, can only provide information on the one-dimensional structure of proteins. Protein crystallization is complemented by the techniques of recombinant protein expression and x-ray diffraction. This video will show the principles of protein crystallization, a general laboratory procedure, and several of its applications in the


 Biochemistry

Genome-wide RNAi Screening to Identify Host Factors That Modulate Oncolytic Virus Therapy

1Children's Hospital of Eastern Ontario (CHEO) Research Institute, 2Department of Biology, Microbiology and Immunology, University of Ottawa, 3Department of Pediatrics, University of Ottawa, 4Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary

JoVE 56913


 Cancer Research

Generation of Escape Variants of Neutralizing Influenza Virus Monoclonal Antibodies

1Department of Microbiology, Icahn School of Medicine at Mount Sinai, 2Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, 3The Department of Medicine, Section of Rheumatology, The Knapp Center for Lupus and Immunology Research, The University of Chicago

JoVE 56067


 Immunology and Infection

Pairwise Growth Competition Assay for Determining the Replication Fitness of Human Immunodeficiency Viruses

1Department of Microbiology, University of Washington, 2Departments of Medicine and Laboratory Medicine, University of Washington, 3U.S Military HIV Research Program, Walter Reed Army Institute of Research, 4Henry M. Jackson Foundation

JoVE 52610


 Immunology and Infection

High-throughput Detection Method for Influenza Virus

1Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, 2Department of Microbiology, Mount Sinai School of Medicine, 3Laboratory of Molecular Genetics, Blood Research Institute, 4City of Milwaukee Health Department Laboratory, 5Division of Hematology-Oncology/BMT, Children's Hospital of Wisconsin, Medical College of Wisconsin, 6Division of Hematology and Oncology, Dept Medicine, Medical College of Wisconsin

JoVE 3623


 Immunology and Infection

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 2Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 3Crop and Environment Sciences, Harper Adams University

JoVE 55534


 Immunology and Infection

Establishment of Viral Infection and Analysis of Host-Virus Interaction in Drosophila Melanogaster

1The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, 2CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 3CAS Key Laboratory of Infection and Immunity (CASKLII), Institute of Biophysics, Chinese Academy of Sciences

Video Coming Soon

JoVE 58845


 JoVE In-Press

Correlative Light Electron Microscopy (CLEM) for Tracking and Imaging Viral Protein Associated Structures in Cryo-immobilized Cells

1European Molecular Biology Laboratory, 2Department of Infectious Diseases, Molecular Virology, Heidelberg University, 3Central Facility for Electron Microscopy, Ulm University, 4Heidelberg Partner Site, German Center for Infection Research

JoVE 58154


 Bioengineering

Prediction of HIV-1 Coreceptor Usage (Tropism) by Sequence Analysis using a Genotypic Approach

1Institute of Virology, University of Cologne, 2Max Planck Institute for Informatics, 3Institute for Immune genetics, 4Department of Gastroenterology, Hepatology and Infectiology, University of Duesseldorf, 5Department of Dermatology, University of Essen, 6Department of Internal Medicine, University of Cologne, 7Augustinerinnen Hospital

JoVE 3264


 Immunology and Infection

Evaluation of Zika Virus-specific T-cell Responses in Immunoprivileged Organs of Infected Ifnar1-/- Mice

1School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, 2NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 3State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 4Research Network of Immunity and Health (RNIH), Beijing Institutes of Life Science, Chinese Academy of Sciences, 5Laboratory Animal Center, Chinese Center for Disease Control and Prevention, 6CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences

JoVE 58110


 Immunology and Infection

Generation of Integration-free Induced Pluripotent Stem Cells from Human Peripheral Blood Mononuclear Cells Using Episomal Vectors

1State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 2Division of Regenerative Medicine, Department of Medicine, Loma Linda University, 3Department of Orthopaedic Surgery, Loma Linda University, 4Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, 5Department of Stem Cell & Regenerative Medicine, Peking Union Medical College, 6Collaborative Innovation Center for Cancer Medicine, 7Tianjin Key Laboratory of Blood Cell Therapy and Technology

JoVE 55091


 Developmental Biology

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