Virus Receptor
Virus Receptor - Related Videos
00:50
What are Viruses?
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2019
Overview A virus is a microscopic infectious particle that consists of an RNA or DNA genome enclosed in a protein shell. It is not able to reproduce on its own: it can only make more viruses by entering a cell and using its cellular machinery. When a virus infects a host cell, it removes its protein coat and directs the host’s machinery to transcribe and translate its genetic material. The hijacked cell assembles the replicated components into thousands of viral progeny, which can rupture and...
07:35
Rescue and Characterization of Recombinant Virus from a New World Zika Virus Infectious Clone
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Cited by 15 •
2017
This protocol describes the recovery of infectious Zika virus from a two-plasmid infectious cDNA clone.
05:01
Quantifying Infectious Viruses in Water Samples Using an In Vitro Total Culturable Virus Assay
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2026
Source: Fout, G. S., Cashdollar, J. L. EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. II. Total Culturable Virus Assay. J. Vis. Exp. (2016)This video demonstrates the use of a total culturable virus assay to quantify infectious viruses in water samples. It outlines host cell inoculation, observation of cytopathic effect, and statistical quantification of infectious virus concentration.
12:03
Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
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Cited by 14 •
2016
Here we present a protocol to describe the localization of angiotensin II Type 1 receptors in the rat brain by quantitative, densitometric, in vitro receptor autoradiography using an iodine-125 labeled analog of angiotensin II.
02:00
Generating Virus-Induced Neuroinflammation in a Mouse Model
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2025
This video demonstrates the generation of neuroinflammation in a mouse model. An anesthetized mouse with micro-wounds is taken, and an inoculum of pseudorabies virus (PRV) is applied to the wounds. The virus infects the peripheral nerves, spreads to the dorsal root ganglia (DRG), and further infects the spinal cord and brain. Infection of neurons in the nervous system leads to an immune response that induces neuronal damage, leading to neuroinflammation.
FAQs
Specificity arises when a viral surface protein recognizes a complementary region of a host-cell receptor. The quality of this molecular fit affects whether attachment can occur and helps explain why closely related cells may differ in susceptibility. Because receptor recognition is selective, it contributes to the tissue and cell-type patterns observed during infection.
Binding can do more than hold the virus near the cell. In some viruses, receptor engagement triggers conformational changes in viral or cellular components that support membrane fusion, endocytosis, or genome delivery. These alternative routes describe distinct ways receptor recognition can advance infection beyond the initial attachment step.
A receptor’s distribution across species, tissues, and cell types helps determine where a virus can attach and potentially begin infection. This distribution therefore contributes to viral tropism, the pattern of susceptibility among biological sites. Mapping receptor presence can help explain why infection is favored in particular host cells or tissues.
Researchers can relate receptor distribution and recognition patterns to susceptibility across different species and cell types. This approach supports predictions about host range and provides a framework for examining how viral mutations may influence transmission or disease outcomes. The receptor perspective connects molecular attachment with broader biological patterns of infection.
Receptor biology identifies an early stage of infection that can be targeted before genome delivery is complete. This knowledge supports development of antiviral drugs and entry inhibitors designed around the attachment and entry process. Studying receptor interactions can therefore guide efforts to interfere with infection at a stage preceding downstream replication events.
Knowledge of receptor interactions supports more than mechanistic studies. It can contribute to diagnostic tools that help investigate infection and to vaccines designed with viral entry biology in mind. Together with antiviral development, these applications make receptor research useful for connecting molecular observations with strategies for detecting or preventing viral disease.