Spatial Proximity Imaging
Spatial Proximity Imaging - Related Videos
08:52
Spatial Molecular Imaging of the Glycome Using Mass Spectrometry
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Cited by 1 •
2025
This protocol details the key steps to enable rigorous and reproducible measurement of both glycogen and N-linked glycans using mass spectrometry imaging.
10:37
Spatial Separation of Molecular Conformers and Clusters
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Cited by 3 •
2014
We present a technique that allows the spatial separation of different conformers or clusters present in a molecular beam. An electrostatic deflector is used to separate species by their mass-to-dipole moment ratio, leading to the production of gas-phase ensembles of a single conformer or cluster stoichiometry.
07:51
Spatial Cueing
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Attention refers to the limited human ability to select some information for processing at the expense of other stimuli in the environment. Attention operates in all sensory modalities: vision, hearing, touch, even taste and smell. It is most often studied in the visual domain though. A common way to study visual attention is with a spatial cueing paradigm. This paradigm allows researchers to measure the consequences of focusing...
08:54
Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
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Cited by 4 •
2016
At the subcellular level, signaling events are dynamically modulated by developmental and environmental cues. Here we describe a protocol that employs the tobacco transient expression system to monitor dynamic protein-protein interaction and to disclose spatial organization of signal transduction in plant cells.
08:13
Spatial Memory Testing Using Mazes
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2023
Spatial learning and memory are neurological functions that allow us to remember important details associated with our environment. Scientists test this phenomenon in rodents using different types of mazes like Morris water maze, Radial water maze, and Barnes maze. By investigating spatial memory in rodents, neurobehavioral scientists can gain valuable understanding of how these processes are altered following brain damage in humans. Here, the neurobiology behind spatial memory is briefly...
FAQs
The probes or labels are designed to recognize particular molecular targets and produce a detectable signal when those targets are recognized simultaneously or brought within a defined distance. This proximity-dependent response links signal generation to molecular neighborhood rather than target identity alone. In neural samples, that relationship can reveal where relevant molecules are positioned relative to one another.
A defined distance threshold determines which molecular relationships can generate a signal. Molecules outside that spatial range may not produce the same detectable response, while nearby targets can be recorded together. This constraint allows the resulting image to represent nanoscale organization and helps researchers examine localized interactions within synapses, neuronal compartments, or other cellular regions.
These approaches preserve the spatial context in which molecular recognition occurs. Instead of reporting only that targets are present, microscopy maps signals across cells or tissue, retaining information about their locations and proximity. That context is particularly valuable for examining how protein organization differs among synapses, neuronal compartments, or regions undergoing developmental or disease-associated changes.
A typical workflow uses target-specific probes or labels to recognize selected molecules, permits a detectable signal to form when the relevant targets are sufficiently close, and then applies microscopy to map that signal. Researchers interpret the resulting spatial pattern across cells or tissue, connecting molecular identity with local organization and potential relationships.
At synapses, the method can characterize how proteins are organized at nanoscale distances and identify molecular relationships within these specialized neuronal regions. Mapping proximity signals across synaptic sites provides spatial information that can complement molecular identification. This supports more precise examination of synaptic organization and of changes associated with neural signaling, development, or disease.
Spatial Proximity Imaging can be used to trace molecular relationships within neuronal compartments and examine how those relationships change during development, signaling, or disease. The resulting maps connect molecular identity to location, helping investigators study cellular organization in context. These observations can contribute to more precise models of neural function and compartment-specific molecular behavior.