Alpha Bungarotoxin Binding Site
Alpha Bungarotoxin Binding Site - Related Videos
11:57
Using an α-Bungarotoxin Binding Site Tag to Study GABA A Receptor Membrane Localization and Trafficking
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Cited by 5 •
2014
Here we demonstrate the use of fluorescent Alexa dye coupled to α-bungarotoxin to measure GABA A receptor surface localization and endocytosis in hippocampal neurons. Through the use of constructs bearing a short extracellular tag that binds α-bungarotoxin, analysis of plasma membrane protein endocytic trafficking can be achieved.
03:25
Immunostaining of Neurons Treated with Alpha-Synuclein Aggregates
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2025
This video demonstrates the immunostaining of neurons treated with alpha-synuclein (αS) aggregates. The neurons are first treated with αS aggregates. They are then fixed, permeabilized, and treated with a blocking solution. Primary antibodies are added, followed by a fluorescently labeled secondary antibodies and a nuclear stain. The sample is then mounted and observed under a microscope.
09:07
Detecting the Ligand-binding Domain Dimerization Activity of Estrogen Receptor Alpha Using the Mammalian Two-Hybrid Assay
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Cited by 5 •
2018
We present a method for analyzing the 4-hydroxy-tamoxifen-dependent estrogen receptor alpha ligand-binding domain dimerization activity using the mammalian two-hybrid assay.
02:12
Induction of Neuroinflammation in Mice via Injection of Alpha-Synuclein Fibrils
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2025
This video demonstrates the injection of alpha-synuclein fibrils into a mouse to induce neuroinflammation. The fibrils are injected intraperitoneally into a transgenic mouse expressing mutated alpha-synuclein proteins. Upon reaching the central nervous system, the fibrils enter neurons and induce aggregation of the mutated proteins. The aggregates spread to neighboring neurons, microglia, and astrocytes. Recognition of the aggregates triggers microglia to induce neuroinflammation, damaging the...
04:09
An Immunofluorescence Assay to Detect Alpha-Synuclein Aggregates in a Skin Biopsy Section
0 Views •
2025
This video demonstrates an immunofluorescence assay to detect neurodegenerative disease-specific alpha-synuclein aggregates on skin biopsy sections. Free-floating immunostaining is employed to fluorescently label the carboxyl-terminal hydrolase and the alpha-synuclein aggregates in the dermal neurons. Under a confocal microscope, cells with fluorescence from both antibodies indicate the presence of alpha-synuclein aggregates in the dermal neurons.
FAQs
Binding at the extracellular acetylcholine-binding interface can prevent a nicotinic acetylcholine receptor from being activated by acetylcholine. The interaction therefore links molecular recognition to functional signaling: a receptor may remain present, yet toxin occupancy can interfere with ion-channel activation. This makes the site useful for relating receptor localization to the capacity for cholinergic communication.
High-affinity recognition allows tagged alpha-bungarotoxin to mark receptor sites for localization and abundance studies, rather than serving only as a blocker of channel activation. A detected signal can show where nAChRs occur and support comparisons among receptor populations. This makes the interaction useful for anatomical mapping in nervous tissue.
Spatial or quantitative differences in labeling may reveal changes in receptor abundance, distribution, or organization. Investigators can use these patterns to distinguish receptor populations and examine how nAChRs are arranged at neuromuscular junctions or synapses. Comparisons across developmental stages, disease conditions, or experimental manipulations can connect receptor changes with altered cholinergic signaling.
A tagged form of alpha-bungarotoxin is applied to nervous tissue so it can recognize the relevant receptor sites. Investigators then detect the attached tag through fluorescence or another detection method. The resulting signal marks receptor-containing regions, allowing location and abundance to be assessed and enabling comparisons between neuromuscular junctions, synapses, or experimental conditions.
At neuromuscular junctions and synapses, labeled binding sites provide a way to visualize where nAChRs are positioned. This spatial information helps relate receptor organization to cholinergic signaling and supports comparisons between different nervous tissues. The same approach can also track changes associated with development, disease, or an experimental manipulation.
A binding map reports where receptor molecules are located and can indicate relative abundance, whereas the toxin's occupancy can interfere with ion-channel activation. Considering both aspects helps separate questions about receptor presence from questions about signaling performance. In neuroscience, this distinction is useful when interpreting changes in cholinergic circuits or receptor populations.