- ￥3200
- Proteintech
- CL488-10883
- 2025年10月13日
- IF/ICC, FC (Intra)
- Rabbit
- human
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- 详细信息
- 文献和实验
- 技术资料
- 免疫原：
Recombinant human P16-INK4A protein
- 亚型：
IgG
- 保存条件：
Store at -20°C. Avoid exposure to light. Stable for one year after shipment.
- 克隆性：
Polyclonal
- 标记物：
CoraLite® Plus 488 Fluorescent Dye
- 适应物种：
human
- 保质期：
详见产品包装
- 库存：
充足
- 宿主：
Rabbit
- 应用范围：
IF/ICC, FC (Intra)
- 靶点：
CDKN2A/P16-INK4A
- 抗体英文名：
CoraLite® Plus 488-conjugated CDKN2A/P16-INK4A Polyclonal antibody
- 抗体名：
CoraLite® Plus 488-conjugated CDKN2A/P16-INK4A Polyclonal antibody
- 规格：
100ul
经过测试的应用
| Positive IF/ICC detected in | HeLa cells |
| Positive FC (Intra) detected in | HeLa cells |
推荐稀释比
| 应用 | 推荐稀释比 |
|---|---|
| Immunofluorescence (IF)/ICC | IF/ICC : 1:50-1:500 |
| Flow Cytometry (FC) (INTRA) | FC (INTRA) : 0.80 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
CL488-10883 targets CDKN2A/P16-INK4A in IF/ICC, FC (Intra) applications and shows reactivity with human samples.
| 经测试应用 | IF/ICC, FC (Intra) |
| 经测试反应性 | human |
| 免疫原 |
CatNo: Ag1328 Product name: Recombinant human P16-INK4A protein Source: e coli.-derived, PGEX-4T Tag: GST Domain: 52-156 aa of BC021998 Sequence: MMMGSARVAELLLLHGAEPNCADPATLTRPVHDAAREGFLDTLVVLHRAGARLDVRDAWGRLPVDLAEELGHRDVARYLRAAAGGTRGSNHARIDAAEGPSDIPD |
| 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 | p16, p16 INK4, P16 INK4A, p16-INK4, p16INK4A |
| 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_2919007 |
| 偶联类型 | CoraLite® Plus 488 Fluorescent Dye |
| 最大激发/发射波长 | 493 nm / 522 nm |
| 形式 | Liquid |
| 纯化方式 | Antigen affinity purification |
| UNIPROT ID | P42771 |
| 储存缓冲液 | PBS with 50% glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3. |
| 储存条件 | Store at -20°C. Avoid exposure to light. 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).
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文献和实验：单克隆抗体设立相应亚型的对照，而多克隆抗体需要对应种属的 IgG 作为对照。用血球计数法或是其他方法对细胞计数。 1. 将 0.5-1 x 106 个细胞分到各检测管中（依照体积）。 2. 各管加入 2-3 ml 孵育缓冲液漂洗，离心回收细胞。重复一次。 3. 将每个管中的细胞重悬在 100 µl 孵育缓冲液中。 4. 室温，孵育缓冲液封闭 10 分钟。 5. 按合适的稀释比例在检测管中加入未标记，生物素标记或是荧光素标记的一抗。具体的用量参考抗体各自的说明书。
光色素与免疫球蛋白分子的比值）应该相同为最佳，这对准确设定阴性与阳性细胞的界标有重要意义，切忌使用与MoAb不相匹配的同型对照，最好为同一实验室、采用相同工艺或方法制备（如同一品牌）的产品。 3、流式细胞技术测定细胞内游离钙浓度为何要使用氯化钙.在文献及其他专业网站中都有测定游离钙的方法，具体如下： （1） 钙荧光探针负载； （2）随机测定每管细胞悬液样品（以下简称样品）的单个细胞的荧光强度，记为F值。 （3）加入10%Triton X 100，（破膜用）；加入1 mmol/L氯
光色素与免疫球蛋白分子的比值）应该相同为最佳，这对准确设定阴性与阳性细胞的界标有重要意义，切忌使用与MoAb不相匹配的同型对照，最好为同一实验室、采用相同工艺或方法制备（如同一品牌）的产品。3、流式细胞技术测定细胞内游离钙浓度为何要使用氯化钙.在文献及其他专业网站中都有测定游离钙的方法，具体如下：（1） 钙荧光探针负载；（2）随机测定每管细胞悬液样品（以下简称样品）的单个细胞的荧光强度，记为F值。（3）加入10%Triton X 100，（破膜用）；加入1 mmol/L氯化钙，（问题所在），吹打均匀，孵育
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