验证数据展示
经过测试的应用
| Positive WB detected in | HEK-293 cells, HEK293 cells, HeLa cells, HepG2 cells, PC-3 cells |
| Positive IP detected in | HEK-293 cells |
| Positive IHC detected in | human cervical cancer tissue Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0 |
| Positive IF/ICC detected in | MDCK cells |
| Positive FC (Intra) detected in | HeLa cells |
推荐稀释比
| 应用 | 推荐稀释比 |
|---|---|
| Western Blot (WB) | WB : 1:1000-1:6000 |
| Immunoprecipitation (IP) | IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate |
| Immunohistochemistry (IHC) | IHC : 1:1000-1:4000 |
| Immunofluorescence (IF)/ICC | IF/ICC : 1:200-1:800 |
| Flow Cytometry (FC) (INTRA) | FC (INTRA) : 0.40 ug per 10^6 cells in a 100 µl suspension |
| It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
| Sample-dependent, Check data in validation data gallery. | |
产品信息
10883-1-AP targets P16-INK4A in WB, IHC, FC (Intra), IP, CoIP, ELISA, Cell treatment applications and shows reactivity with human, dog samples.
| 经测试应用 | WB, IHC, FC (Intra), IP, ELISA Application Description |
| 文献引用应用 | WB, IHC, IP, CoIP, Cell treatment |
| 经测试反应性 | human, dog |
| 文献引用反应性 | human, pig, rabbit, canine, monkey, bovine |
| 免疫原 | P16-INK4A fusion protein Ag1328 种属同源性预测 |
| 宿主/亚型 | Rabbit / IgG |
| 抗体类别 | Polyclonal |
| 产品类型 | Antibody |
| 全称 | cyclin-dependent kinase inhibitor 2A |
| 别名 | |
| 计算分子量 | 16 kDa |
| 观测分子量 | 16-18 kDa |
| GenBank蛋白编号 | BC021998 |
| 基因名称 | CDKN2A |
| Gene ID (NCBI) | 1029 |
| RRID | AB_2078303 |
| 偶联类型 | Unconjugated |
| 形式 | Liquid |
| 纯化方式 | Antigen affinity purification |
| UNIPROT ID | P42771 |
| 储存缓冲液 | PBS with 0.02% sodium azide and 50% glycerol pH 7.3. |
| 储存条件 | Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. |
背景介绍
Background
p16 is an important cell cycle regulator and acts as a tumor suppressor. It may also be referred to as one of a number of synonyms, including p16INK4a and cyclin-dependent kinase inhibitor 2A.
What is the molecular weight of P16?
16kDa. P16 is encoded by the CDKN2A gene in humans and is a chain comprising 148 amino acids.
What is the function of p16?
P16 inhibits cells from progressing from G1 into S phase, binding to cyclin-dependent kinase 4 (CDK4) and inhibiting its kinase ability, so that it cannot phosphorylate the retinoblastoma tumor suppressor (RB). Without this phosphorylation, RB does not activate downstream genes, so the G1/S checkpoint cannot be passed and the cell does not proliferate (PMID: 8259215).
What is the role of p16 in senescence?
In senescence, cells are irreversibly arrested in the cell cycle. P16 is expressed more highly in aging tissue, is associated with intrinsic cellular aging signals such as telomere shortening, and can therefore be used as a marker of senescence (PMID: 9244355; PMID: 19535234). Due to its role in cell cycle arrest, p16 drives the initiation and maintenance of a cellular senescent phenotype.
What is the role of p16 in cancer?
As a negative regulator of proliferation, p16 is a known tumor suppressor. Mutations in the CDKN2A gene that lead to inactivation of p16 protein have been associated with an increased risk of cancer and are often observed in primary tumors and in cancer cell lines (PMID: 9508208). The inactivation of p16 has been shown to be a key early stage of tumor progression. In a small number of tumor types that are caused by the human papilloma virus (HPV), p16 is in fact overexpressed when RB is inactivated, releasing p16 and causing an accumulation (PMID: 21297668).
实验方案
| Product Specific Protocols | |
|---|---|
| WB protocol for P16-INK4A antibody 10883-1-AP | Download protocol |
| IHC protocol for P16-INK4A antibody 10883-1-AP | Download protocol |
| IF protocol for P16-INK4A antibody 10883-1-AP | Download protocol |
| IP protocol for P16-INK4A antibody 10883-1-AP | Download protocol |
| Standard Protocols | |
|---|---|
| Click here to view our Standard Protocols |
发表文章
| Species | Application | Title |
|---|---|---|
Science PI(3,4)P2-mediated cytokinetic abscission prevents early senescence and cataract formation. | ||
Nat Genet Early TP53 alterations engage environmental exposures to promote gastric premalignancy in an integrative mouse model. | ||
Cancer Cell mTORC1 Activation Blocks Braf(V600E)-Induced Growth Arrest but Is Insufficient for Melanoma Formation. | ||
Circulation Vascular Smooth Muscle Cell Senescence Promotes Atherosclerosis and Features of Plaque Vulnerability. | ||
Cell Metab SREBP1c-PARP1 axis tunes anti-senescence activity of adipocytes and ameliorates metabolic imbalance in obesity. |
