ABE990

Anti-Histone H3.3 K27I

from rabbit

• 别名: H3.3, H3.3 mutant K27I
• 分類程式碼代碼: 12352203
• eCl@ss: 32160702
• NACRES: NA.41

属性

• 生物源: rabbit
• 品質等級: 100
• 抗體表格: affinity isolated antibody
• 抗體產品種類: primary antibodies
• 無性繁殖: polyclonal
• 物種活性: human
• 包裝: antibody small pack of 25 μL
• 技術: western blot: suitable
• 同型: IgG
• NCBI登錄號: NP_005315
• UniProt登錄號: P84243
• 運輸包裝: ambient
• 目標翻譯後修改: unmodified
• 基因資訊: human ... H3F3B(3021)

说明

一般說明

Histone H3.3 (UniProt: P84243) is encoded by the H3F3A (also known as H3.3A, H3F3, PP781, H3F3B, H3.3B) gene (Gene ID: 3020) in human. It is a highly conserved variant form of Histone H3, which replaces conventional H3 in a wide range of nucleosomes in active genes. Histone H 3.3 constitutes the predominant form of histone H3 in non-dividing cells and is incorporated into chromatin independently of DNA synthesis. H3.3 is associated with actively expressed genes in both animals and plants. It is predominantly enriched near transcription end sites (TES) of genes and positively associated with transcription. Histone H3 contains a main globular domain and a long N-terminal tail and is involved with the structure of the nucleosomes of the ′beads on a string′ structure. The N-terminal tail of histone H3 protrudes from the globular nucleosome core and can undergo several different types of epigenetic modifications that influence cellular processes. These modifications include the covalent attachment of methyl or acetyl groups to lysine and arginine amino acids and the phosphorylation of serine or threonine. For example, acetylation on Lys10 (H3K9ac; initial methionine removed) impairs methylation at Arg9 (H3R8me2s) and acetylation on Lys19 (H3K18ac) and Lys24 (H3K24ac) favors methylation at Arg18 (H3R17me). Phosphorylation at Ser11 (H3S10ph) by Aurora kinase B is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. Phosphorylation at Ser11 by RPS6KA4 and RPS6KA5 is important during interphase because it enables the transcription of genes following external stimulation, like mitogens, stress, growth factors or UV irradiation and result in the activation of genes, such as c-Fos and c-Jun. Mutations in Histone H3.3 have been implicated in a high proportion of malignant pediatric brain cancers. The mutant H3.3 histone disrupts epigenetic post-translational modifications near genes involved in cancer processes and in brain function. Histone H3K27 is reported to be methylated by the Polycomb Repressive Complex 2 (PRC2) for X-chromosome inactivation and gene silencing and H3K27M peptides are shown to be potent inhibitors of PRC2 activity. H3K27I peptide also displays inhibitory, although to a lesser extent, on PRC2. The possibility of K27I mutation in Histone H3 has been suggested in pediatric gliomas, which might be due to blockage of glial cell differentiation. (Ref.: Lewis, PW., and Allis, CD (2013). Cell Cycle. 12(20): 3241-3242).

特異性

This rabbit polyclonal antibody detects K27I mutant form of histone H3.3 and does not react with the wild-type H3.3.

免疫原

Epitope: N-terminus

KLH-conjugated linear peptide corresponding to 8 amino acids from the N-terminal region of human histone H3.3 with K27I mutation.

應用

Anti-Histone H3.3 K27I, Cat. No. ABE990, is a highly specific rabbit polyclonal antibody that detects Histone H3.3 mutant K27I and has been tested for use in Western Blotting.

Research Category
Epigenetics & Nuclear Function

Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected Histone H3.3 K27I in HEK293 cells transfected with H3.3 K27I mutant, but not the wild-type. (Courtesy of Dr. Peter Lewis, Rockefeller University).

品質

Evaluated by Western Blotting in wold-type HEK293 cells and HEK293 cells transfected with Histone H3.3 K27I.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected Histone H3.3 K27I in HEK293 cells transfected with Histone H3.3 K27I.

標靶描述

~18 kDa observed; 15.33 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

外觀

Affinity Purified

Format: Purified

Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

儲存和穩定性

Stable for 1 year at 2-8°C from date of receipt.

其他說明

Concentration: Please refer to lot specific datasheet.

免責聲明

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.

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: does not flash
• 閃點（°C）: does not flash