Spatial Chromatin Organization Imaging Services
Validate your 3D genomics discoveries with our Spatial Chromatin Organization Imaging Services. While sequencing reveals contact frequencies, our imaging suite—ranging from classic 3D DNA-FISH and high-density Oligopaint to super-resolution DNA-PAINT—allows you to see the physical distance and spatial context of your genomic loci. For a focused follow-up, consider chromatin imaging and spatial analysis when visualizing chromatin organization in space. Transform your 3D genome maps into high-resolution visual evidence and bridge the gap between digital matrices and biological reality. RUO.
- Visual Validation: The gold standard proof for loops and TADs.
- High Resolution: From standard confocal to 20nm super-resolution.
- Custom Probes: Precise design for any genomic coordinates.
- Spatial Genomics: Advanced ORCA and Hi-M for path reconstruction.
Overview: Seeing the Spatial Reality of Chromatin Architecture
While sequencing technologies like Hi-C and Micro-C provide incredible "contact frequency" maps of the genome, they remain digital approximations of a physical reality. To truly understand gene regulation, researchers often need to see the actual physical distance between a promoter and an enhancer in the three-dimensional space of an individual nucleus. Our Spatial Chromatin Organization Imaging Services provide the essential validation required for high-impact 3D genomics research.
By transitioning from digital matrices to direct visual observation, you can confirm the existence of chromatin loops, measure the volume of Topologically Associating Domains (TADs), and determine the spatial positioning of gene clusters relative to nuclear landmarks like the lamina or nucleolus. Imaging measures spatial distance and physical organization in individual nuclei, complementing the population-scale data provided by sequencing.
Whether you are seeking to validate a single loop in a specific cell line or reconstruct the entire path of a genomic region across a population of cells, our imaging suite offers the spatial context that sequencing alone cannot provide. This visual evidence is often the final piece of data required for publication in high-tier journals.
Core Chromatin Imaging Services
These foundational imaging techniques are the most common entry points for researchers looking to validate their 3D genomics discoveries. They provide robust, publication-ready visual evidence for specific chromatin interactions.
3D DNA-FISH
The cornerstone of chromatin imaging. 3D DNA-FISH (Fluorescence In Situ Hybridization) allows for the labeling of specific genomic loci with fluorescent probes. By using multi-color labeling, we can measure the physical distance between two or more points to confirm if a predicted loop exists in the physical space of the nucleus.
- Best For: Validating Hi-C loops and measuring locus-to-locus distances.
- Output: High-resolution microscopy images and quantified distance distributions.
Oligopaint DNA-FISH
A significant leap forward in probe technology, Oligopaint utilizes complex libraries of short, synthetic oligonucleotides. This allows for extremely high-density labeling with unparalleled specificity. We can "paint" entire chromosomal domains, TADs, or even thousands of small, discrete loci across the genome with high SNR.
- Best For: High-resolution domain visualization and multiplexed locus targeting.
- Flexibility: Custom designs for any organism with a sequenced genome.
Specialized Spatial & Super-Resolution Modules
For projects requiring resolution beyond the limits of standard light microscopy or those studying the dynamic movement of the genome, we offer specialized advanced modules that leverage cutting-edge optical physics.
Spatial Genomics (ORCA & Hi-M)
These sequential FISH technologies represent the cutting edge of spatial genomics. ORCA (Optical Reconstruction of Chromatin Architecture) and Hi-M use automated fluidics to hybridize and image dozens of genomic segments sequentially. This allows us to "trace" the path of a chromatin fiber at high resolution, recreating the physical structure of a TAD in 3D space cell-by-cell.
Super-Resolution (DNA-PAINT / OligoSTORM)
Standard microscopy is limited by the diffraction of light (~200nm). Our super-resolution modules like DNA-PAINT and OligoSTORM break this barrier, allowing us to visualize chromatin fibers and clusters at a scale of 20–50nm. This is essential for studying the internal "nanostructure" of chromatin domains and nucleosome clustering.
CRISPR-based Live-cell Imaging
Static images only tell part of the story. Using CRISPR-Cas9 systems dually labeled with fluorophores, we can track the real-time movement of specific genomic loci in living cells. This enables the study of how chromatin loops form, break, and move in response to stimuli or throughout the cell cycle, providing a temporal dimension to 3D genomics.
Choosing the Right Imaging Strategy
Selecting the appropriate imaging module depends on the size of your target, the resolution required, and the number of cells you need to analyze. Use the table below to compare our primary offerings.
| Service Module | Primary Application | Spatial Resolution | Throughput |
|---|---|---|---|
| 3D DNA-FISH | Loop/Locus Validation | ~200 nm (Confocal) | Medium |
| Oligopaint | Domain/TAD Visualization | Variable (Scale-dependent) | High |
| ORCA / Hi-M | Chromatin Path Tracing | ~100 nm (Sequential) | Moderate |
| DNA-PAINT / STORM | Nanostructure Analysis | ~20-50 nm (Super-res) | Low |
| CRISPR-Live | Real-time Dynamics | ~250 nm (Live-cell) | Medium |
Frequently Asked Questions
Disclaimer: This service is for Research Use Only (RUO) and is not intended for use in clinical diagnostic or therapeutic procedures.
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