Histone MacroH2A (mH2A) is a variant histone also known as H2AFY. mH2A is enriched in chromatin of the female inactive X chromosome and in highly methylated CpG loci. This histone variant is known to repress RNA polymerase II-driven transcription at the level of transcriptional initiation. In contrast to most histone variants containing only subtle changes, mH2A contains a large non-histone domain (the macro domain) on its C-terminus, resulting in a histone approximately three times the size of conventional H2A. There are 3 isoforms of mH2A, two of which (mH2A1.1, mH2A1.2 ) are formed by alternative splicing and another (mH2A2) from a separate gene. There are two phosphorylation sites within the basic hinge region of mH2A: Thr128 and Ser137. Phospho-Ser137 is enriched in mitosis, implicating mH2A in the regulation of posttranslational modifications throughout the cell cycle.
Specificity
This antibody recognizes Histone MacroH2A.1 at the macro domain.
Immunogen
Epitope: Macro domain
GST-tagged recombinant protein corresponding to mcro domain of mouse Histone MacroH2A.1.
Application
Anti-Histone Macro H2A.1 Antibody is a Rabbit Polyclonal Antibody for detection of Histone Macro H2A.1 also known as H2A histone family member Y, histone macroH2A1.2 & has been validated in WB, ICC.
Immunocytochemistry Analysis: 1:500 dilution from a representative lot detected Histone MacroH2A.1 in NIH/3T3, A431, and HeLa cells.
Research Category Epigenetics & Nuclear Function
Research Sub Category Histones
Quality
Evaluated by Western Blot in HeLa acid extract.
Western Blot Analysis: 0.2 µg/mL of this antibody detected histone MacroH2A.1 on 10 µg of HeLa acid extract.
Target description
~ 40 kDa observed
Linkage
Replaces: 07-219
Physical form
Affinity purified
Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Storage and Stability
Stable for 1 year at 2-8°C from date of receipt.
Analysis Note
Control HeLa acid extract
Other Notes
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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For over 130 years, invasive pneumococcal disease has been associated with the presence of extracellular planktonic pneumococci, i.e. diplococci or short chains in affected tissues. Herein, we show that Streptococcus pneumoniae that invade the myocardium instead replicate within cellular vesicles
Heterochromatin formation plays a pivotal role in regulating chromatin organization and influences nuclear architecture and genome stability and expression. Amongst the locations where heterochromatin is found, the pericentric regions have the capability to attract the histone variant macroH2A1. However, the
macroH2A2 antagonizes epigenetic programs of stemness in glioblastoma.
Nikolic, et al.
Nature Communications, 14, 3062-3062 (2023)
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