Anti-Smad4抗体(ab110175)
Key features and details
- Rabbit polyclonal to Smad4
- Suitable for: WB
- Knockout validated
- Reacts with: Human
- Isotype: IgG
选择批间可重复性更高的重组抗体
- 研究可靠 —— 各批次间结果一致且可重复
- 长期批量供应 —— 采用重组技术,可实现快速生产
- 首次实验即可成功 —— 经过大量验证确认了特异性
- 符合伦理标准 —— 产品不含动物成分
概述
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产品名称
Anti-Smad4抗体
参阅全部 Smad4 一抗 -
描述
兔多克隆抗体to Smad4 -
宿主
Rabbit -
经测试应用
适用于: WBmore details
不适用于: ICC/IF -
种属反应性
与反应: Human
预测可用于: Mouse, Rat, Sheep, Horse, Cow, Dog, Pig, Chimpanzee, Macaque monkey, Gorilla, Orangutan -
免疫原
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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阳性对照
- WB: HeLa, A431, Jurkat, A549, HepG2, THP1 and Ramos whole cell lysates.
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常规说明
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As
性能
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形式
Liquid -
存放说明
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle. -
存储溶液
pH: 7.40
Preservative: 0.02% Sodium azide
Constituent: PBS
Batches of this product that have a concentration < 1mg/ml may have BSA added as a stabilising agent. If you would like information about the formulation of a specific lot, please contact our scientific support team who will be happy to help. -
Concentration information loading...
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纯度
Immunogen affinity purified -
克隆
多克隆 -
同种型
IgG -
研究领域
相关产品
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Compatible Secondaries
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Isotype control
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Recombinant Protein
应用
The Abpromise guarantee
Abpromise™承诺保证使用ab110175于以下的经测试应用
“应用说明”部分 下显示的仅为推荐的起始稀释度;实际最佳的稀释度/浓度应由使用者检定。
应用 | Ab评论 | 说明 |
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WB |
Use a concentration of 1 µg/ml. Detects a band of approximately 67 kDa (predicted molecular weight: 60 kDa).
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说明 |
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WB
Use a concentration of 1 µg/ml. Detects a band of approximately 67 kDa (predicted molecular weight: 60 kDa). |
靶标
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功能
Common SMAD (co-SMAD) is the coactivator and mediator of signal transduction by TGF-beta (transforming growth factor). Component of the heterotrimeric SMAD2/SMAD3-SMAD4 complex that forms in the nucleus and is required for the TGF-mediated signaling. Promotes binding of the SMAD2/SMAD4/FAST-1 complex to DNA and provides an activation function required for SMAD1 or SMAD2 to stimulate transcription. Component of the multimeric SMAD3/SMAD4/JUN/FOS complex which forms at the AP1 promoter site; required for syngernistic transcriptional activity in response to TGF-beta. May act as a tumor suppressor. -
疾病相关
Defects in SMAD4 are a cause of pancreatic cancer (PNCA) [MIM:260350].
Defects in SMAD4 are a cause of juvenile polyposis syndrome (JPS) [MIM:174900]; also known as juvenile intestinal polyposis (JIP). JPS is an autosomal dominant gastrointestinal hamartomatous polyposis syndrome in which patients are at risk for developing gastrointestinal cancers. The lesions are typified by a smooth histological appearance, predominant stroma, cystic spaces and lack of a smooth muscle core. Multiple juvenile polyps usually occur in a number of Mendelian disorders. Sometimes, these polyps occur without associated features as in JPS; here, polyps tend to occur in the large bowel and are associated with an increased risk of colon and other gastrointestinal cancers.
Defects in SMAD4 are a cause of juvenile polyposis/hereditary hemorrhagic telangiectasia syndrome (JP/HHT) [MIM:175050]. JP/HHT syndrome phenotype consists of the coexistence of juvenile polyposis (JIP) and hereditary hemorrhagic telangiectasia (HHT) [MIM:187300] in a single individual. JIP and HHT are autosomal dominant disorders with distinct and non-overlapping clinical features. The former, an inherited gastrointestinal malignancy predisposition, is caused by mutations in SMAD4 or BMPR1A, and the latter is a vascular malformation disorder caused by mutations in ENG or ACVRL1. All four genes encode proteins involved in the transforming-growth-factor-signaling pathway. Although there are reports of patients and families with phenotypes of both disorders combined, the genetic etiology of this association is unknown.
Defects in SMAD4 may be a cause of colorectal cancer (CRC) [MIM:114500]. -
序列相似性
Belongs to the dwarfin/SMAD family.
Contains 1 MH1 (MAD homology 1) domain.
Contains 1 MH2 (MAD homology 2) domain. -
结构域
The MH1 domain is required for DNA binding.
The MH2 domain is required for both homomeric and heteromeric interactions and for transcriptional regulation. Sufficient for nuclear import. -
翻译后修饰
Monoubiquitinated on Lys-519 by E3 ubiquitin-protein ligase TRIM33. Monoubiquitination hampers its ability to form a stable complex with activated SMAD2/3 resulting in inhibition of TGF-beta/BMP signaling cascade. Deubiqitination by USP9X restores its competence to mediate TGF-beta signaling. -
细胞定位
Cytoplasm. Nucleus. Cytoplasmic in the absence of ligand. Migrates to the nucleus when complexed with R-SMAD. - Information by UniProt
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数据库链接
- Entrez Gene: 540248 Cow
- Entrez Gene: 4089 Human
- Entrez Gene: 17128 Mouse
- Entrez Gene: 397142 Pig
- Entrez Gene: 50554 Rat
- Omim: 600993 Human
- SwissProt: Q1HE26 Cow
- SwissProt: Q13485 Human
see all -
别名
- (Small) Mothers Against Decapentaplegic antibody
- Deleted in Pancreatic Carcinoma 4 antibody
- Deleted in Pancreatic Carcinoma antibody
see all
图片
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All lanes : Anti-Smad4 antibody (ab110175) at 1 µg
Lane 1 : Wild-type HAP1 whole cell lysate
Lane 2 : SMAD4 knockout HAP1 whole cell lysate
Lysates/proteins at 20 µg per lane.
Predicted band size: 60 kDaLanes 1 - 2: Merged signal (red and green). Green - ab110175 observed at 60 kDa. Red - loading control, ab9484, observed at 37 kDa.
ab110175 was shown to recognize Smad4 in wild-type HAP1 cells as signal was lost at the expected MW in SMAD4 knockout cells. Additional cross-reactive bands were observed in the wild-type and knockout cells. Wild-type and SMAD4 knockout samples were subjected to SDS-PAGE. Ab110175 and ab9484 (Mouse anti-GAPDH loading control) were incubated overnight at 4°C at 1 μg/ml and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.
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All lanes : Anti-Smad4 antibody (ab110175) at 1/1000 dilution
Lane 1 : SW480 cell lysate
Lane 2 : HepG2 cell lysate
Lane 3 : Jurkat cell lysate
Lane 4 : Human skin tissue lysate
Lane 5 : Human lung tissue lysate
Lane 6 : Human artery tissue lysate
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution
Predicted band size: 60 kDa
Observed band size: 60 kDa
Exposure time: 3 minutesBlocking and dilution buffer: 5% NFDM/TBST.
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All lanes : Anti-Smad4 antibody (ab110175) at 1 µg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 2 : A431 (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 3 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
Lane 4 : A549 (Human lung adenocarcinoma epithelial cell line) Whole Cell Lysate
Lane 5 : HepG2 (Human hepatocellular liver carcinoma cell line) Whole Cell Lysate
Lane 6 : THP1 (Human acute monocytic leukemia cell line) Whole Cell Lysate
Lane 7 : Ramos (Human Burkitt's lymphoma cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 60 kDa
Observed band size: 67 kDa why is the actual band size different from the predicted?
Additional bands at: 37 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 4 minutes
The predicted molecular weight of Smad4 is 60 kDa (SwissProt), however we expect to observe a banding pattern around 70 kDa. Abcam welcomes customer feedback and would appreciate any comments regarding this product and the data presented above.
数据表及文件
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SDS download
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Datasheet download
文献 (4)
ab110175 被引用在 4 文献中.
- Li J et al. LncRNA MTX2-6 Suppresses Cell Proliferation by Acting as ceRNA of miR-574-5p to Accumulate SMAD4 in Esophageal Squamous Cell Carcinoma. Front Cell Dev Biol 9:654746 (2021). PubMed: 33869216
- Xu J et al. SMAD4 Is Essential for Human Cardiac Mesodermal Precursor Cell Formation. Stem Cells 37:216-225 (2019). PubMed: 30376214
- Pu W et al. miR-146a promotes cell migration and invasion in melanoma by directly targeting SMAD4. Oncol Lett 15:7111-7117 (2018). PubMed: 29731876
- Wang Q et al. Smad4-dependent suppressor pituitary homeobox 2 promotes PPP2R2A-mediated inhibition of Akt pathway in pancreatic cancer. Oncotarget 7:11208-22 (2016). PubMed: 26848620