Recombinant Human Histone H2B protein (ab92409)
Key features and details
- Expression system: Escherichia coli
- Purity: >= 95% SDS-PAGE
- Suitable for: WB, Functional Studies
Description
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Product name
Recombinant Human Histone H2B protein
See all Histone H2B proteins and peptides -
Purity
>= 95 % SDS-PAGE. -
Expression system
Escherichia coli -
Protein length
Full length protein -
Animal free
No -
Nature
Recombinant -
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Species
Human
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Associated products
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Related Products
Specifications
Our Abpromise guarantee covers the use of ab92409 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Applications
Western blot
Functional Studies
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Form
Liquid -
Concentration information loading...
Preparation and Storage
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Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
General Info
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Alternative names
- GL105
- H2B GL105
- H2B histone family member O
see all -
Relevance
Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. Subunit structure The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. Post-translational modification Monoubiquitination at Lys-35 (H2BK34Ub) by the MSL1/MSL2 dimer is required for histone H3 'Lys-4' (H3K4me) and 'Lys-79' (H3K79me) methylation and transcription activation at specific gene loci, such as HOXA9 and MEIS1 loci. Similarly, monoubiquitination at Lys-121 (H2BK120Ub) by the RNF20/40 complex gives a specific tag for epigenetic transcriptional activation and is also prerequisite for histone H3 'Lys-4' and 'Lys-79' methylation. It also functions cooperatively with the FACT dimer to stimulate elongation by RNA polymerase II. H2BK120Ub also acts as a regulator of mRNA splicing: deubiquitination by USP49 is required for efficient cotranscriptional splicing of a large set of exons. Phosphorylation at Ser-37 (H2BS36ph) by AMPK in response to stress promotes transcription. Phosphorylated on Ser-15 (H2BS14ph) by STK4/MST1 during apoptosis; which facilitates apoptotic chromatin condensation. Also phosphorylated on Ser-15 in response to DNA double strand breaks (DSBs), and in correlation with somatic hypermutation and immunoglobulin class-switch recombination. GlcNAcylation at Ser-113 promotes monoubiquitination of Lys-121. It fluctuates in response to extracellular glucose, and associates with transcribed genes. Crotonylation (Kcr) is specifically present in male germ cells and marks testis-specific genes in post-meiotic cells, including X-linked genes that escape sex chromosome inactivation in haploid cells. Crotonylation marks active promoters and enhancers and confers resistance to transcriptional repressors. It is also associated with post-meiotically activated genes on autosomes. -
Cellular localization
Nuclear
Images
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SDS-PAGE Analysis: Lane 1: MW Marker; Lane 2: 1.0 µg Human Histone H2B Protein (ab92409).
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Western Blot Analysis. Lane 1: MW Marker; Lane 2: 100 ng Human Histone H2B Protein (ab92409) probed with Histone H2B pAb.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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Datasheet download
References (0)
ab92409 has not yet been referenced specifically in any publications.