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Home >> Antibodies >> SMAD4 Antibody

SMAD4 Antibody [clone SMAD4/2440] (V8414)

  Catalog No Formulation Size Price (USD)  
Image V8414-100UG 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide 100 ug 519
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V8414-20UG 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide 20 ug 229
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V8414SAF-100UG 1 mg/ml in 1X PBS; BSA free, sodium azide free 100 ug 519
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IHC staining of FFPE human colon carcinoma with SMAD4 antibody (clone SMAD4/2440). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.
Analysis of HuProt(TM) microarray containing more than 19,000 full-length human proteins using SMAD4 antibody (clone SMAD4/2440). These results demonstrate the foremost specificity of the SMAD4/2440 mAb. Z- and S- score: The Z-score represents the strength of a signal that an antibody (in combination with a fluorescently-tagged anti-IgG secondary Ab) produces when binding to a particular protein on the HuProt(TM) array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If the targets on the HuProt(TM) are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-scores. The S-score therefore represents the relative target specificity of an Ab to its intended target.
Availability 1-3 business days
Species Reactivity Human
Format Purified
Clonality Monoclonal (mouse origin)
Isotype Mouse IgG2a, kappa
Clone Name SMAD4/2440
Purity Protein G affinity chromatography
UniProt Q13485
Localization Cytoplasmic & Nuclear
Applications Immunohistochemistry (FFPE) : 1-2ug/ml for 30 minutes at RT
Limitations This SMAD4 antibody is available for research use only.
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Description

Signaling from the ligand-activated membrane receptor serine/threonine kinases to nuclear targets is mediated by a set of evolutionarily conserved proteins known as DPC4. Upon ligand binding, the receptors of the TGF- family phosphorylate SMAD proteins (SMAD1 and SMAD2). These proteins then move into the nucleus, where they activate transcription. To carry out this function, the receptor activated SMAD1 and 2 require association with the product of deleted in pancreatic carcinoma, locus 4 (DPC4), also known as SMAD4. SMAD4/DPC4 is also implicated as a tumor suppressor, since it is inactivated in more than half of pancreatic carcinomas and to a lesser extent in a variety of other cancers. SMAD4 is absent in approximately 80% of pancreatic adenocarcinoma, but rarely in endometrial, colorectal, ovarian, lung, breast adenocarcinomas, and malignant melanom. SMAD4 is an important marker for confirming a diagnosis of pancreatic adenocarcinoma. Patients with pancreatic adenocarcinomas with SMAD4 protein expression had significantly longer survival than SMAD4 negative patients.

Application Notes

Optimal dilution of the SMAD4 antibody should be determined by the researcher.

Immunogen

Recombinant full-length human protein was used as the immunogen for the SMAD4 antibody.

Storage

Store the SMAD4 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).

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