Chromatin extraction kits provide streamlined workflows to isolate intact chromatin, including nuclei-associated chromatin, soluble chromatin fragments, and chromatin-bound protein complexes, from cultured cells, primary samples, or tissues. These kits are designed to preserve native nucleoprotein interactions and chromatin architecture while eliminating cytoplasmic contaminants, making them suitable for a wide range of downstream epigenetics and chromatin biology applications.
Extracted chromatin can be used in workflows such as MNase digestion, chromatin immunoprecipitation (ChIP), CUT&Tag, CUT&RUN, ATAC-seq, chromatin-associated proteomics, and various biochemical and functional assays.
Key Advantages
- Gentle and reproducible isolation: Optimized buffers and protocols minimize chromatin disruption while preserving protein–DNA interactions and native chromatin organization.
- Flexible preparation formats: Suitable for native chromatin extraction, crosslinked chromatin preparation, or nuclei-only isolation depending on experimental requirements.
- Broad sample compatibility: Compatible with cultured cell lines, primary cells, sorted cell populations, fresh tissues, frozen samples, and low-input specimens.
- Reduced hands-on time: Standardized reagent formulations and simplified workflows improve reproducibility and reduce experimental variability.
- Downstream-ready extracts: Chromatin preparations are optimized for enzymatic digestion, immunoprecipitation, tagmentation, sequencing, and mass spectrometry applications.
Applications
- Preparation of nuclei and native chromatin for MNase digestion, ChIP, CUT&Tag, CUT&RUN, and ATAC-seq workflows.
- Extraction of crosslinked chromatin for formaldehyde-based chromatin immunoprecipitation studies.
- Enrichment of chromatin-bound protein complexes for proteomic and mass spectrometry analyses.
- Low-input applications involving rare clinical specimens, sorted cell populations, or precious biological samples.
- Sample preparation for chromatin remodeling studies, enzyme activity assays, nucleosome mapping, and DNA footprinting experiments.