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Key Documents

07-424

Sigma-Aldrich

Anti-phospho-Histone H3 (Thr3) Antibody

Upstate®, from rabbit

Synonym(s):

H3T3P, Histone H3 (phospho T3)

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41
Pricing and availability is not currently available.

biological source

rabbit

Quality Level

100

antibody form

unpurified

antibody product type

primary antibodies

clone

polyclonal

species reactivity

mouse, human

manufacturer/tradename

Upstate®

technique(s)

immunocytochemistry: suitable
inhibition assay: suitable
western blot: suitable

NCBI accession no.

NM_003493

UniProt accession no.

Q16695

General description

Histone H3.1t (UniProt: Q16695; also known as H3/t, H3t, H3/g) is encoded by the HIST3H3 (also known as H3FT) gene (Gene ID: 8290) in human. Histones are highly conserved basic nuclear proteins that are responsible for the nucleosome structure of chromatin in eukaryotes. They play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which DNA is wrapped in repeating units, called nucleosomes, which limits DNA accessibility to the cellular machineries that require DNA as a template. Histone H3 features a main globular domain and a long N-terminal tail, which protrudes from the globular nucleosome core and can undergo several different types of epigenetic modifications that influence cellular processes. The N-terminal tails of histones are subject to posttranslational modifications, including phosphorylation, acetylation, and methylation, which recruit downstream regulatory factors, influence chromatin structure, and are critical determinants of transcription. Histone H3 can undergo acetylation on several lysine residues in the histone tail by histone acetyltransferases. Acetylation is generally associated with transcriptional activity and methylation of lysine and arginine residues can either activate or repress depending on the residue modified. Trimethylation of histone H3 is one of the most studied epigenetic marks. H3K4me3 modifications are reported to occur consistently at transcription start sites and H3K4me3 domain is associated with higher transcription activity and cell identity in pre-implantation development and in the process of deriving embryonic stem cells from the inner cell mass and trophoblast stem cells from the trophectoderm. Histone H3 is phosphorylated at threonine 4 (H3T3ph) by histone H3 associated protein kinase (HASPIN) during prophase and is dephosphorylated during anaphase and phosphorylation at serine 11 (H3S10ph) by Aurora kinase B is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. (Ref.: Sharifi-Zarchi, A., et al. (2017). BMS Genomics. 18; Article 964; Liu, X., et al. (2016). Nature. 537(7621); 558-562).

Specificity

This rabbit polyclonal antibody detects Histone H3 phosphorylated on threonine 3.

Immunogen

KLH-conjugated linear peptide corresponding to 13 amino acids surrounding phosphothreonine 3 of human Histone H3.

Application

Quality Control Testing

Evaluated by Western Blotting in acid extract from colcemid-treated HeLa cells.Western Blotting Analysis: A 1:5,000 dilution of this antibody detected Phospho-Histone H3 (Thr3) in acid extract of colcemid treated (50 ng/mL, overnight) HeLa cells, but not the recombinant Histone H3 protein.


Tested ApplicationsPeptide Inhibition Assay: Target band detection in acid extract from colcemid treated (50 ng/mL; overnight) HeLa cells was prevented by preblocking of a representative lot with the immunogen phosphopeptide, but not with non-phosphorylated Histone H3 peptide.Immunocytochemistry Analysis: A 1:500 dilution from a representative lot detected Phospho-Histone H3 (Thr3) in NIH3T3 cells.Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user.

Quality

routinely evaluated by immunoblot in acid extracted proteins from mitotic HeLa cells

Target description

~17 kDa observed; 15.51 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Format: Unpurified
Immunodepleted
Immunodepleted rabbit serum with 0.05% sodium azide with 30% glycerol.

Storage and Stability

Store at -10°C to -25°C. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Analysis Note

Control
Acid extract from colcemid-treated HeLa cells

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

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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Mitotic phosphorylation of histone H3 at threonine 3
Polioudaki, H., et al
Febs Letters, 560, 39-44 (2004)
Zhen Wang et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(27), 8487-8492 (2015-06-24)
Histone phosphorylation plays key roles in stress-induced transcriptional reprogramming in metazoans but its function(s) in land plants has remained relatively unexplored. Here we report that an Arabidopsis mutant defective in At3g03940 and At5g18190, encoding closely related Ser/Thr protein kinases, shows
Cindy Lim et al.
Cell reports, 13(2), 315-325 (2015-10-07)
Extrinsic cues from the niche are known to regulate adult stem cell self-renewal versus differentiation. Here, we report that an aminopeptidase Slamdance (Sda) acts in the Drosophila testicular niche to maintain germline stem cells (GSCs) and regulate progenitor germ cell
Christopher Jenness et al.
Proceedings of the National Academy of Sciences of the United States of America, 115(5), E876-E885 (2018-01-18)
Mutations in CDCA7, the SNF2 family protein HELLS (LSH), or the DNA methyltransferase DNMT3b cause immunodeficiency-centromeric instability-facial anomalies (ICF) syndrome. While it has been speculated that DNA methylation defects cause this disease, little is known about the molecular function of
Maria A Abad et al.
The Journal of cell biology, 218(12), 3912-3925 (2019-10-02)
Chromosome association of the chromosomal passenger complex (CPC; consisting of Borealin, Survivin, INCENP, and the Aurora B kinase) is essential to achieve error-free chromosome segregation during cell division. Hence, understanding the mechanisms driving the chromosome association of the CPC is
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