Histone H1.4 (D4J5Q) Rabbit mAb #41328
- WB
- IF
- ChIP
Supporting Data
| REACTIVITY | H Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 30 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IF-Immunofluorescence
- ChIP-Chromatin Immunoprecipitation
Species Cross-Reactivity Key:
- H-Human
- Mk-Monkey
Product Information
Product Usage Information
For optimal ChIP results, use 10 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunofluorescence (Immunocytochemistry) | 1:200 - 1:800 |
| Chromatin IP | 1:50 |
Storage
Protocol
Specificity / Sensitivity
Histone H1.4 (D4J5Q) Rabbit mAb recognizes endogenous levels of total histone H1.4 protein. This antibody also cross reacts with histone H1.5 (UniProt P16401) and weakly with histones H1.1 (UniProt Q02539), H1.2 (UniProt P16403), and H1.3 (UniProt P16402).
Species Reactivity:
Human, Monkey
The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.
Species predicted to react based on 100% sequence homology:
Hamster, Bovine, Dog
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala176 of human histone H1.4 protein.
Background
Histones are evolutionarily conserved proteins that play a vital role in the compaction, storage, and regulation of DNA within the eukaryotic nucleus. The basic subunit of chromatin, the nucleosome core particle, is composed of DNA wound around two copies each of the core histone proteins H2A, H2B, H3, and H4 (1-3). Formation of higher order chromatin structure is facilitated through the binding of linker histone H1 to the nucleosome particle (chromatosome) (4-6). In humans and mice, there are 11 distinct histone H1 variants, which include the somatic variants (H1.1, H1.2, H1.3, H1.4, and H1.5) that are expressed ubiquitously, and cell type specific variants such as H1t found in the testis and H1.0 expressed in terminally differentiated cells (6-10). Binding of histone H1 to chromatin limits accessibility of DNA to other proteins by stabilizing nucleosome positioning, competing for binding sites, and limiting the activity of chromatin remodeling proteins such as the SWI/SNF complex (6,11-14). Histone H1 binding is highly dynamic and is thought to be regulated by post-translational modifications (6). For example, cell cycle regulated phosphorylation of histone H1 leads to chromatin condensation and decondensation depending on the site of phosphorylation and histone H1.4 Lys34 acetylation by GCN5 has been linked to increased mobility of H1.4 and transcriptional activation (6, 15-18).
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