- ￥2600
- Proteintech
- 39-2500 pg/mL
- KE00360
- 2026年07月06日
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- 技术资料
- 检测范围：
39-2500 pg/mL
- 应用：
Sandwich ELISA
- 适应物种：
Human
- 样本：
Serum, Plasma, Cell lysate
- 规格：
96T
Product Information
KE00360 is a solid phase sandwich Enzyme Linked-Immuno-Sorbent Assay (Sandwich ELISA). The human SMAD4 ELISA kit is to be used to detect and quantify protein levels of endogenous human SMAD4. The assay recognizes human SMAD4. An antibody specific for human SMAD4 has been pre-coated onto the microwells. The human SMAD4 protein in samples is captured by the coated antibody after incubation. Following extensive washing, another horseradish peroxidase (HRP)-conjugated antibody specific for human SMAD4 is added to detect the captured human SMAD4 protein. For signal development, followed by Tetramethyl-benzidine (TMB) reagent. Solution containing sulfuric acid is used to stop color development and the color intensity which is proportional to the quantity of bound protein is measurable at 450 nm with the correction wavelength set at 630 nm.
| Product name | Human SMAD4 ELISA Kit |
| Tests | 1 X 96 well plate |
| Sample type | Serum, Plasma, Cell lysate 备注：对未验证样本，我们提供技术支持和售后保障。 |
| Assay type | Sandwich |
| Sensitivity | 0.4 pg/mL |
| Range | 39-2500 pg/mL |
| Reactivity | Human |
| Tested applications | Sandwich ELISA |
| Gene ID (NCBI) | 4089 |
Recovery
| Sample Type | Average | Range |
|---|---|---|
| Human serum | 83% | 70%-116% |
| Cell lysate | 111% | 99%-126% |
IntraAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 20 | 1,231.1 | 90.0 | 7.3 |
| 2 | 20 | 222.3 | 23.0 | 10.3 |
| 3 | 20 | 53.3 | 3.1 | 5.8 |
InterAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 24 | 1,236.8 | 82.1 | 6.6 |
| 2 | 24 | 240.3 | 11.4 | 4.7 |
| 3 | 24 | 56.1 | 3.5 | 6.2 |
Background Information
SMAD4, also called SMAD family member 4, Mothers against decapentaplegic homolog 4, or DPC4 (Deleted in Pancreatic Cancer-4) is a highly conserved protein present in all metazoans. It belongs to the SMAD family of transcription factor proteins, which act as mediators of TGF-β signal transduction. The TGF-β family of cytokines regulates critical processes during the lifecycle of metazoans, with important roles during embryo development, tissue homeostasis, regeneration, and immune regulation. SMAD4 interacts with R-Smads, such as SMAD2, SMAD3, SMAD1, SMAD5 and SMAD8 (also called SMAD9) to form heterotrimeric complexes. Transcriptional coregulators, such as WWTR1 (TAZ) interact with SMADs to promote their function. Once in the nucleus, the complex of SMAD4 and two R-SMADS binds to DNA and regulates the expression of different genes depending on the cellular context. Smad4 GSK3 phosphorylations have been proposed to regulate the protein stability during pancreatic and colon cancer progression.
Properties
| Storage Instructions | All the reagents are stored at 2-8℃ for 6 months or -20℃ for 12 months. Refer to the protocol for further storage instructions. |
| Synonyms | SMAD4,DPC4,hSMAD4,JIP,MAD homolog 4 |
FAQ
1、我的样本稀释液有限，如何处理稀释倍数较大的样本？
我们建议您对样本进行梯度稀释。例如，人血清样本需要1000000倍稀释时，您可以分3个梯度，每个梯度100倍，进行稀释：
第一步：取2 uL人血清样本，加入198 uL样本稀释液，混匀得到100倍稀释的人血清样本
第二步：取2uL 100倍稀释的人血清样本+ 198 uL样本稀释液进行稀释，混匀得到10000倍稀释的人血清样本
第三步：取2uL 10000倍稀释的人血清样本+ 198 uL样本稀释液进行稀释，混匀得到1000000倍稀释的人血清样本。
如果样本需要进一步稀释，您可以使用更多梯度。除了我们推荐的样本稀释液，不建议您使用其他溶液或者水稀释。如果您的样本稀释液仍然不足，请联系我们的客服为您提供更多样本稀释液。
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