产品说明
一般描述
Heterochromatin protein 1 (HP1) is a family of heterochromatic adaptor molecules involved in both gene silencing and higher order chromatin structure. All three HP1 family members (α, β, and γ) are primarily associated with centromeric heterochromatin; however, HP1β and γ also localize to euchromatic sites in the genome. HP1 proteins are approximately 25 kDa in size and each contains a conserved amino-terminal chromodomain, followed by a variable hinge region and a conserved carboxy-terminal chromoshadow domain. The chromodomain facilitates binding to histone H3 tri-methylated on Lys9, a histone "mark" closely associated with centromeric heterochromatin. The variable hinge region binds both RNA and DNA in a sequence-independent manner. The chromoshadow domain mediates the dimerization of HP1 proteins, in addition to binding multiple proteins implicated in gene silencing and heterochromatin formation, including the SUV39H histone methyltransferase, the DNMT1 and DNMT3a DNA methyltransferases and the p150 subunit of chromatin-assembly factor-1 (CAF1). In addition to contributing to heterochromatin formation and propagation, HP1 and SUV39H are also found complexed with retinoblastoma (Rb) and E2F6 proteins, both of which function to repress euchromatic gene transcription in quiescent cells. HP1 proteins are subject to multiple types of post-translational modifications, including phosphorylation, acetylation, methylation, ubiquitination and sumoylation, suggesting multiple means of regulation.
特异性
This antibody recognizes HP1α
免疫原
GST fusion protein corresponding to residues 2-191 of human HP1α protein.
应用
Immunohistochemistry:
A previous lot of this antibody has been reported by an independent laboratory to detect HP1a in NIH/3T3 nuclei (Ayyanathan, K., 2003).
Immunoprecipitation/Chromatin Immunoprecipitation:
A previous lot of this antibody has been reported by an independent laboratory to immunoprecipitate HP1α from nuclear extracts and formalin-cross-linked chromatin (Ayyanathan, K., 2003).
Research Sub Category
Chromatin Biology
RNA Binding Protein (RBP)
Research Category
Epigenetics & Nuclear Function
Anti-HP1α Antibody, clone15.19s2 is a Mouse Monoclonal Antibody for detection of HP1α also known as HP1Hs alpha, Heterochromatin protein 1 homolog alpha & has been validated in ChIP, ICC, IHC, IP & WB.
质量
Routinely evaluated by western blot in acid-extracted HeLa cell lysates.
Western Blot Analysis:
0.5-2 µg/mL of this lot detected HP1α protein in acid-extracted HeLa cell lysates.
目标描述
29 kDa
联系
Replaces: MABE479
外形
Protein G Chromatography
Purified mouse monoclonal IgG in buffer containing 0.02 M phosphate buffer, pH 7.6, 0.25 M NaCl, and 0.1% Sodium Azide before the addition of glycerol to 30%.
Format: Purified
储存及稳定性
Stable for 1 year at 2-8°C from date of receipt.
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. Note: Variability in freezer temperatures below -20°C may cause glycerolcontaining solutions to become frozen during storage.
分析说明
Control
HeLa, NIH/3T3 and COS cell lysates.
其他说明
Due to license agreement restrictions, this product cannot be purchased for resale.
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
法律信息
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany
免责声明
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.
基本信息
eCl@ss | 32160702 |
NACRES | NA.41 |
产品性质
质量水平 | 100 |
生物来源 | mouse |
抗体形式 | purified immunoglobulin |
antibody product type | primary antibodies |
克隆 | 15.19s2, monoclonal |
species reactivity | human, vertebrates, mouse |
manufacturer/tradename | Upstate® |
technique(s) | ChIP: suitable immunocytochemistry: suitable immunohistochemistry: suitable immunoprecipitation (IP): suitable western blot: suitable |
同位素/亚型 | IgG1 |
NCBI登记号 | NM_012117 |
UniProt登记号 | P45973 |
运输 | wet ice |
Gene Information | human ... CBX5(23468) |
安全信息
储存分类代码 | 12 - Non Combustible Liquids |
WGK | WGK 1 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich