Spike Protein Antibody
Spike Protein Antibody - Related Videos
04:56
Antibody-Mediated Neutralization of Coronavirus Spike Protein-Expressing Pseudoviruses Using Patient Serum
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2026
Source: Jamieson, T. R., et al. Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection. J. Vis. Exp. (2021)This video demonstrates the antibody-mediated neutralization of pseudoviruses carrying coronavirus spike proteins using patient serum, studied through high-throughput fluorescent imaging of infected epithelial cell monolayers.
02:46
Visualizing Dose-Dependent Spike Protein Uptake with Quantum Dot Conjugates
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2026
Source: Tran, B. N., et. al. High-throughput Confocal Imaging of Quantum Dot-Conjugated SARS-CoV-2 Spike Trimers to Track Binding and Endocytosis in HEK293T Cells. J. Vis. Exp. (2022)This video demonstrates the use of quantum dot–conjugated spike protein (QD-Spike) to visualize dose-dependent viral entry in ACE2-GFP–expressing cells. Confocal imaging captures the internalization of QD-Spike via receptor-mediated endocytosis, modeling early coronavirus entry.
06:48
Antibody Labeling with Fluorescent Dyes Using Magnetic Protein A and Protein G Beads
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Cited by 3 •
2016
The on-bead method for labeling antibodies with small molecules enables labeling of a small amount of antibodies directly from cell media. This method is compatible with amine and thiol chemistry, and can handle multiple samples in parallel, manually or using automated platforms.
08:29
Averaging of Viral Envelope Glycoprotein Spikes from Electron Cryotomography Reconstructions using Jsubtomo
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Cited by 23 •
2014
An approach is presented for determining structures of viral membrane glycoprotein complexes using a combination of electron cryo-tomography and sub-tomogram averaging with the computational package Jsubtomo.
02:19
Triggering a Closed-Loop Stimulation by Neuron Spiking Activity
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2025
This video demonstrates the operation of closed-loop stimulation in a rat with a surgically implanted device to record neural activity. Neuronal signals are first recorded and analyzed. Template waveforms are then uploaded, and parameters are defined to trigger closed-loop stimulation.
FAQs
A single antibody’s effect depends on the spike region it recognizes. Binding may prevent the viral surface protein from interacting with a host-cell receptor, or it may interfere with structural changes needed for membrane fusion. These distinct mechanisms both target viral entry, but they provide different ways to evaluate whether antibody binding has functional consequences in infection research.
An epitope’s location and structural role help determine how binding should be interpreted. Recognition of regions involved in receptor interaction or fusion-related changes can be assessed for effects on viral entry. Comparing these binding patterns helps researchers distinguish where antibodies recognize spike and evaluate the potential functional significance of those interactions in an immune response.
Variant analysis focuses on whether changes in the spike protein alter antibody recognition. Researchers can compare binding patterns across variants to identify differences in immune escape and determine whether an antibody response remains directed toward the tested form of spike. This comparison links variant-associated changes with differences in immune recognition in infection research.
Serological testing can examine whether antibodies in a sample recognize spike epitopes. Results help evaluate immune responses associated with vaccination or infection. Because recognition is epitope-specific, the observed binding pattern provides context for interpreting the response rather than treating all spike-directed antibodies as functionally identical.
In antigen detection, these antibodies provide the specific recognition step for the spike protein. Their binding can help an assay identify spike-associated material, while the binding pattern indicates which epitope is recognized. This application differs from measuring an individual’s antibody response and supports diagnostic investigation focused on detecting viral antigen.
Neutralization assays assess whether antibody binding produces a functional reduction in viral entry. Researchers can compare antibodies or immune samples by examining their capacity to block receptor interaction or interfere with fusion-related structural changes. The result connects epitope recognition with a measurable infection-related outcome, making the assay useful for evaluating antibody function rather than binding alone.
Comparing these responses helps researchers evaluate how each exposure is reflected in antibody recognition of spike epitopes. The analysis can include binding patterns and neutralization-related results, allowing immune responses to be examined across serological testing and functional assays. Such comparisons support studies of vaccine-induced and infection-induced immunity, variant recognition, and potential diagnostic or therapeutic applications.