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Localization of Acetylcholine Receptor by 125 I-Labeled α-Bungarotoxin Binding at Mouse Motor Endplates
Open accessAbstract
Exposed sternomastoid muscles of anaesthetized mice were bathed in 125 I-labeled α-bungarotoxin until all neurally evoked muscle contractions were eliminated. The distribution of label was then determined by electron microscope autoradiography. It was found that the label was localized at the top of the junctional folds, i.e., at the postjunctional membrane nearest the axon. Since the α-bungarotoxin had fully eliminated the physiological muscle response, these results indicate that the active acetylcholine receptor occupies a limited area of the junctional folds and is not distributed uniformly throughout this membrane. Specialized membrane densities seem to coincide with the labeled regions.
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Cited by
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Albuquerque, E. X., Pereira, E. F. R., Alkondon, M., & Rogers, S. W. (2009) · Physiological Reviews · doi:10.1152/physrev.00015.2008 · Cited by 1,724
Changeux, J.-P., & Danchin, A. (1976) · Nature · doi:10.1038/264705a0 · Cited by 1,448
Membrane Receptors and Hormone Action
Cuatrecasas, P., & Hollenberg, M. D. (1976) · Advances in Protein Chemistry · doi:10.1016/s0065-3233(08)60481-7 · Cited by 478
Differences in Synaptic GABAA Receptor Number Underlie Variation in GABA Mini Amplitude
Nusser, Z., Cull-Candy, S., & Farrant, M. (1997) · Neuron · doi:10.1016/s0896-6273(00)80382-7 · Cited by 449
Two-photon scanning photochemical microscopy: mapping ligand-gated ion channel distributions.
Denk, W. (1994) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.91.14.6629 · Cited by 294
Metadata
- Authors
- Fertuck, H. C., & Salpeter, M. M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1974-04
- Volume
- 71
- Issue
- 4
- Pages
- 1376-1378
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2037787290
- Cited by
- 313
- References
- 0
- FWCI
- 12.07
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Localization of Acetylcholine Receptor by 125 I-Labeled α-Bungarotoxin Binding at Mouse Motor Endplates. https://app.cochat.ai/papers/10.1073/pnas.71.4.1376
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- Fertuck, H. C., & Salpeter, M. M. (1974). Localization of Acetylcholine Receptor by 125 I-Labeled α-Bungarotoxin Binding at Mouse Motor Endplates. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.71.4.1376
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
