| Code | CSB-RA010109A0HU |
| Size | US$210 |
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| Application | Recommended Dilution |
|---|---|
| IHC | 1:50-1:500 |
| IF | 1:30-1:200 |
Histone H3.3 represents a replication-independent variant of histone H3 that plays a central role in chromatin dynamics and transcriptional regulation. Unlike canonical histones deposited during DNA replication, H3.3 is incorporated throughout the cell cycle at actively transcribed genes, regulatory elements, and heterochromatic regions. This distinctive deposition pattern makes H3.3 a valuable marker for studying gene activation, chromatin remodeling, and epigenetic memory. Mutations in H3F3A and H3F3B genes encoding H3.3 have been linked to pediatric brain tumors and other malignancies, positioning this histone variant as an important target in cancer epigenetics research.
This recombinant monoclonal antibody, generated from clone 4H2 in rabbit, offers the reproducibility and consistency that demanding epigenetic studies require. Because the antibody sequence is defined and produced recombinantly, researchers can expect uniform performance across experiments and over time, eliminating the lot-to-lot variability that can complicate longitudinal studies or multi-site collaborations. Affinity chromatography purification ensures high specificity for your target.
Validation studies demonstrate reliable performance across multiple experimental platforms. Immunohistochemistry staining has been confirmed in paraffin-embedded human pancreatic and lymph node tissues at 1:100 dilution using citrate buffer antigen retrieval, revealing clear nuclear localization patterns consistent with H3.3 biology. Immunofluorescence analysis in HeLa cells at 1:60 dilution shows robust nuclear staining that colocalizes appropriately with DAPI counterstaining, confirming the expected chromatin association.
Whether investigating transcriptional regulation, chromatin accessibility, or the epigenetic landscape of disease states, this antibody provides a dependable tool for visualizing H3.3 distribution in human samples across immunohistochemistry and immunofluorescence workflows.
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