- [Resource Hub](/) - [Blog](/?resource-type=blog-post#library) - Brain Map - Part 4: The List is Good, But Is the Map Better? # Brain Map - Part 4: The List is Good, But Is the Map Better? Brain Map Series - Part 4 of 5 (Prefer to listen to the full story? Click play to hear Episode 4 of our accompanying audio version.) The Precision Point - Brain Map Series - Episode 4 0:00 / 0:00 Your browser does not support the audio element. You have the cells. You have the nuclei. But do you have the Context ? Single-nucleus sequencing gives you a fantastic "List." - 50,000 excitatory neurons. - 20,000 angry microglia. But think about it: Does the List tell you where the game is being played? In Alzheimer's, location is everything. Is that microglia attacking a plaque, or is it floating harmlessly centimeters away? The List effectively puts the brain in a blender. You lose the neighborhood. Enter Spatial Transcriptomics . ### The Map Imagine placing a slice of brain directly onto a glass slide and sequencing the RNA right where it sits. Source: [10x Genomics CytAssist Spatial Gene and Protein Expression](https://www.10xgenomics.com/support/spatial-gene-and-protein-expression) Now you have the "Map." You can see the layers. You can see the tumors. You can see the pathology. But here is the catch: The Map is often blurry. It gives you location, but it lacks the deep, high-resolution identity of single-nucleus sequencing. It's like a satellite photo—you see the houses, but you don't know who lives inside. ### The Fusion: Can You Have Both? Why choose? The future isn't one or the other. It's the fusion. Use the List (snRNA-seq) as your Rosetta Stone to define exactly who the cells are. Use the Map (Spatial) to find their coordinates. Mathematically combine them, and you get the "Precision Point." You can map the deep identity of a specific cell onto the exact physical location of a disease plaque. ### The Logistics Nightmare But how do you actually do this? It means running two complex experiments on the same sample. - A slice for the Map. - A second slice for the List. Usually, that means two manual workflows and double the error. It's a headache. This is where the Singulator becomes your MVP. It eliminates the error from your List slice and helps guarantee security in this "multi-omics" reality. - It supports the hardest sample type of all— FFPE . - You can follow either The Nuclei Isolation from FFPE Tissues for Single-Nuclei Sequencing Applications protocol or utilize the built-in fully automated, two-step protocol to pull clean nuclei from the List FFPE slice. ### The Chisel Pathologists love FFPE (wax-embedded tissue) because it preserves shape forever. Molecular biologists hate it because it turns tissue into a brick. The Singulator acts as a precise "chisel." Its automated protocol gently cracks the wax and liberates the nuclei without destroying them. One machine. Both jobs. The List for frozen samples and the List to fill in the details for the Map. You have the parts. You have the location. What happens when you finally put them together? Blog Series [Brain Map Series](/resources/series/brain-map-series/) Part 4 of 5 [Previous Brain Map - Part 3: Fresh vs. Frozen: Which Side Are You On?](/resources/brain-map-part-3-fresh-vs-frozen-which-side-are-you-on/) [Next Brain Map - Part 5: The Journey Ends Here - Are You Ready to Build the Map?](/resources/brain-map-part-5-the-journey-ends-here-are-you-ready-to-build-the-map/) [View all posts in this series](/resources/series/brain-map-series/) [Back to all resources](/#library) ## Similar resources [Ebook](/resources/tissue-dissociation-protocol-guide/) Singulator 100 Singulator 200 Singulator 200+ 2026 ### Tissue Dissociation Guide The most comprehensive tissue dissociation reference available. Interactive protocols for single-cell isolation and nuclei extraction across 57+ tissue types with community and Singulator-optimized methods. [Read Ebook](/resources/tissue-dissociation-protocol-guide/) [Blog](/resources/brain-map-part-3-fresh-vs-frozen-which-side-are-you-on/) Singulator 100 Singulator 200 Singulator 200+ 2025 ### Brain Map - Part 3: Fresh vs. Frozen: Which Side Are You On? Fresh vs. Frozen: Which Side Are You On? Description: The debate between fresh tissue (whole cells) and frozen tissue (nuclei) divides labs. We explore why fresh dissociation often creates a "map of a disaster" through stress artifacts, and why frozen nuclei offer the unbiased, stable truth required for atlas-scale science. [Read Blog](/resources/brain-map-part-3-fresh-vs-frozen-which-side-are-you-on/) [Blog](/resources/brain-map-part-5-the-journey-ends-here-are-you-ready-to-build-the-map/) Singulator 100 Singulator 200 Singulator 200+ 2025 ### Brain Map - Part 5: The Journey Ends Here - Are You Ready to Build the Map? From the hidden world of glia to the final 3D atlas, the journey of modern neuroscience relies on one foundational step: sample preparation. We conclude our series by challenging researchers to prioritize clean, reproducible input to build the definitive map of the human brain. [Read Blog](/resources/brain-map-part-5-the-journey-ends-here-are-you-ready-to-build-the-map/) [Blog](/resources/brain-map-part-1-why-did-science-miss-half-the-brain/) Singulator 100 Singulator 200 Singulator 200+ 2025 ### Brain Map - Part 1: Why Did Science Miss Half the Brain? For a century, neuroscience focused exclusively on the neuron, dismissing glia as mere "packing peanuts." Discover how single-nucleus sequencing revealed the active, critical role of the brain's immune and support systems—and why this shift changes everything for Alzheimer's research. [Read Blog](/resources/brain-map-part-1-why-did-science-miss-half-the-brain/) [Blog](/resources/brain-map-part-2-what-is-ruining-your-frozen-experiments/) Singulator 100 Singulator 200 Singulator 200+ 2025 ### Brain Map - Part 2: What is Ruining Your Frozen Experiments? What is Ruining Your Frozen Experiments? Description: Every great story needs a villain. In frozen brain tissue processing, that villain is myelin debris. Learn how lipid contamination clogs microfluidics and ruins data, and see how the Singulator’s automated Protocol DP0006 neutralizes this threat to unlock biobank archives. [Read Blog](/resources/brain-map-part-2-what-is-ruining-your-frozen-experiments/) [Publication](https://precisioncellsystems.com/wp-content/uploads/2025/10/s41586-022-05450-1.pdf) Singulator 100 Singulator 200 2025 ### Kinase signaling in excitatory neurons regulates sleep quantity and depth [View Publication](https://precisioncellsystems.com/wp-content/uploads/2025/10/s41586-022-05450-1.pdf) [Publication](https://link.springer.com/article/10.1007/s00401-023-02604-x?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743189924157.1743558253016.10&__hssc=225964101.31.1743558253016&__hsfp=1300058700&submissionGuid=c7f3c611-02ec-4ec0-a180-2e24c56a4025) Singulator 100 Singulator 200 2025 ### Cell-specific MAPT gene expression is preserved in neuronal and glial tau cytopathologies in progressive supranuclear palsy [View Publication](https://link.springer.com/article/10.1007/s00401-023-02604-x?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743189924157.1743558253016.10&__hssc=225964101.31.1743558253016&__hsfp=1300058700&submissionGuid=c7f3c611-02ec-4ec0-a180-2e24c56a4025) [Publication](https://www.biorxiv.org/content/10.1101/2023.11.17.567534v1?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743189924157.1743558253016.10&__hssc=225964101.26.1743558253016&__hsfp=1300058700&submissionGuid=838128d8-35f7-458b-a0a0-6e5e93506818) Singulator 100 Singulator 200 2025 ### Sexually dimorphic role of diet and stress on behavior, energy metabolism, and the ventromedial hypothalamus [View Publication](https://www.biorxiv.org/content/10.1101/2023.11.17.567534v1?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743189924157.1743558253016.10&__hssc=225964101.26.1743558253016&__hsfp=1300058700&submissionGuid=838128d8-35f7-458b-a0a0-6e5e93506818) [Presentation](https://sail.mskcc.org/research/experimental-research/?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743110139007.1743114390284.6&__hssc=225964101.1.1743114390284&__hsfp=1300058700&submissionGuid=da42544b-9315-47f8-87f4-f27614a8159e) Singulator 100 Singulator 200 2025 ### Comparison of polydT and probe-based RNA capture for single-cell RNAseq [View Presentation](https://sail.mskcc.org/research/experimental-research/?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743110139007.1743114390284.6&__hssc=225964101.1.1743114390284&__hsfp=1300058700&submissionGuid=da42544b-9315-47f8-87f4-f27614a8159e) [Protocol](https://www.jove.com/t/65611/a-simple-quick-partially-automated-protocol-for-isolation-single?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743114390284.1743120525713.7&__hssc=225964101.6.1743120525713&__hsfp=1300058700&submissionGuid=d251dea3-f5b9-441b-b0eb-4eadf390de7e) Singulator 100 Singulator 200 2025 ### A Simple, Quick, and Partially Automated Protocol for the Isolation of Single Nuclei from Frozen Mammalian Tissues for Single Nucleus Sequencing [Read Protocol](https://www.jove.com/t/65611/a-simple-quick-partially-automated-protocol-for-isolation-single?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743114390284.1743120525713.7&__hssc=225964101.6.1743120525713&__hsfp=1300058700&submissionGuid=d251dea3-f5b9-441b-b0eb-4eadf390de7e) [Protocol](https://www.protocols.io/view/nuclei-extraction-for-single-cell-rnaseq-from-froz-q26g74xzqgwz/v1?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743114390284.1743120525713.7&__hssc=225964101.13.1743120525713&__hsfp=1300058700&submissionGuid=cc1fb887-2fc0-423d-9124-6e7264b1d55f) Singulator 100 Singulator 200 2025 ### Nuclei extraction for single-cell RNAseq from frozen tissue using Singulator™ 100 [Read Protocol](https://www.protocols.io/view/nuclei-extraction-for-single-cell-rnaseq-from-froz-q26g74xzqgwz/v1?__hstc=225964101.fe4380f775ce29a6a07134828a8c07b8.1742318073258.1743114390284.1743120525713.7&__hssc=225964101.13.1743120525713&__hsfp=1300058700&submissionGuid=cc1fb887-2fc0-423d-9124-6e7264b1d55f) [Publication](https://aacrjournals.org/cancerres/article/85/2/231/750993/FOXR2-Targets-LHX6-DLX-Neural-Lineages-to-Drive) Singulator 100 Singulator 200 2025 ### FOXR2 targets LHX6+/DLX+ neural lineages to drive CNS neuroblastoma [View Publication](https://aacrjournals.org/cancerres/article/85/2/231/750993/FOXR2-Targets-LHX6-DLX-Neural-Lineages-to-Drive)